Senior Go Engineer
up to $8,000/month
#Vacancy #Go #SeniorGoEngineer #Fintech #Blockchain #Remote #Fulltime
Company: Task Agency
✦ Job Denoscription:
Task Agency has been building IT infrastructure for fintech — Forex, blockchain, and traditional finance — since 2014. We are looking for a Senior Go Engineer to develop high-load systems in data warehousing, big data, and cloud computing, while working with modern microservice architecture and DevOps practices.
Key Responsibilities:
– Develop backend services in Go for data-intensive and cloud systems
– Participate in CI/CD, deployment automation (Ansible, Terraform, Azure Pipelines)
– Work with microservices, message brokers, SQL databases, Protobuf, gRPC
– Debug, profile, and optimize code performance
– Collaborate with team members to solve complex technical tasks
✦ Qualifications:
– 4+ years of commercial experience with Go
– Solid understanding of profiling, debugging, unit/integration testing
– Strong SQL knowledge, external caches, message brokers
– Familiarity with Linux at a basic level
– Experience with microservice architecture and CI/CD
– Protobuf and gRPC expertise
– Knowledge of SOLID and design patterns
– Good English for daily communication
✦ Preferred Qualifications:
– Docker/Kubernetes experience
– Background in fintech or understanding financial instruments
Location: Remote (excluding Russia and Belarus)
Contact:@Juliana_Barysenka
✦ @HOLDER_JOB_DEVS
up to $8,000/month
#Vacancy #Go #SeniorGoEngineer #Fintech #Blockchain #Remote #Fulltime
Company: Task Agency
✦ Job Denoscription:
Task Agency has been building IT infrastructure for fintech — Forex, blockchain, and traditional finance — since 2014. We are looking for a Senior Go Engineer to develop high-load systems in data warehousing, big data, and cloud computing, while working with modern microservice architecture and DevOps practices.
Key Responsibilities:
– Develop backend services in Go for data-intensive and cloud systems
– Participate in CI/CD, deployment automation (Ansible, Terraform, Azure Pipelines)
– Work with microservices, message brokers, SQL databases, Protobuf, gRPC
– Debug, profile, and optimize code performance
– Collaborate with team members to solve complex technical tasks
✦ Qualifications:
– 4+ years of commercial experience with Go
– Solid understanding of profiling, debugging, unit/integration testing
– Strong SQL knowledge, external caches, message brokers
– Familiarity with Linux at a basic level
– Experience with microservice architecture and CI/CD
– Protobuf and gRPC expertise
– Knowledge of SOLID and design patterns
– Good English for daily communication
✦ Preferred Qualifications:
– Docker/Kubernetes experience
– Background in fintech or understanding financial instruments
Location: Remote (excluding Russia and Belarus)
Contact:
✦ Please forward the job posting when applying.
✦ @HOLDER_JOB_DEVS
💯2🔥1
Senior Software Engineer (Full Stack, Backend-leaning)
$128,000 – $179,000 USD base + equity
#Vacancy #Fullstack #Backend #Fintech #Crypto #Elixir #React #Remote
Company: CoinList
✦ Job Denoscription:
CoinList is a leading crypto financial platform providing token sales, trading, lending, staking, and DeFi access. We’re hiring a Senior Software Engineer to join our Core Team and help scale financial infrastructure powering wallets, custody, and payment systems. This role combines backend engineering with web application development, offering ownership of end-to-end projects in a fast-paced fintech environment.
Key Responsibilities:
– Build and scale financial software systems for custody, money movement, and payments
– Develop and maintain web frontends (React, LiveView) with focus on UX
– Architect and optimize wallet and custody solutions for multiple cryptocurrencies
– Own full project lifecycle from design to deployment and monitoring
– Collaborate cross-functionally with product, compliance, and engineering teams
– Conduct code reviews, mentor juniors, and set technical standards
– Improve system performance, reliability, and automation
✦ Qualifications:
– 5+ years of professional engineering experience
– Proven track record scaling financial systems (fintech, trading, payments, or crypto)
– Security-first approach to financial software development
– Experience building production frontends (React, LiveView, or similar)
– Strong coding fundamentals and product ownership mindset
– Collaborative with designers, detail-oriented
✦ Preferred Qualifications:
– Experience with distributed systems, microservices
– Familiarity with blockchain protocols, custody, staking
– Background in Elixir, Ruby, Go, TypeScript, or Python
– Experience with payment rails, ledgers, or compliance systems
– Open-source contributions or crypto community involvement
Location: Remote (global)
Apply: https://apply.workable.com/coinlist/j/B8FE60E913/apply/
✦ Please mention that you found the vacancy in this channel.
✦ @HOLDER_JOB_DEVS
$128,000 – $179,000 USD base + equity
#Vacancy #Fullstack #Backend #Fintech #Crypto #Elixir #React #Remote
Company: CoinList
✦ Job Denoscription:
CoinList is a leading crypto financial platform providing token sales, trading, lending, staking, and DeFi access. We’re hiring a Senior Software Engineer to join our Core Team and help scale financial infrastructure powering wallets, custody, and payment systems. This role combines backend engineering with web application development, offering ownership of end-to-end projects in a fast-paced fintech environment.
Key Responsibilities:
– Build and scale financial software systems for custody, money movement, and payments
– Develop and maintain web frontends (React, LiveView) with focus on UX
– Architect and optimize wallet and custody solutions for multiple cryptocurrencies
– Own full project lifecycle from design to deployment and monitoring
– Collaborate cross-functionally with product, compliance, and engineering teams
– Conduct code reviews, mentor juniors, and set technical standards
– Improve system performance, reliability, and automation
✦ Qualifications:
– 5+ years of professional engineering experience
– Proven track record scaling financial systems (fintech, trading, payments, or crypto)
– Security-first approach to financial software development
– Experience building production frontends (React, LiveView, or similar)
– Strong coding fundamentals and product ownership mindset
– Collaborative with designers, detail-oriented
✦ Preferred Qualifications:
– Experience with distributed systems, microservices
– Familiarity with blockchain protocols, custody, staking
– Background in Elixir, Ruby, Go, TypeScript, or Python
– Experience with payment rails, ledgers, or compliance systems
– Open-source contributions or crypto community involvement
Location: Remote (global)
Apply: https://apply.workable.com/coinlist/j/B8FE60E913/apply/
✦ Please mention that you found the vacancy in this channel.
✦ @HOLDER_JOB_DEVS
👏3
Middle/Senior PHP Developer
$4,500/month (negotiable)
#vacancy #job #relocation #вакансия #it #remote #middle #senior #php #developer
Company: Realmo
✦ Job Denoscription:
Realmo is building a cutting-edge digital platform for the commercial real estate market using AI, Big Data, and blockchain. Our mission is to transform a chaotic industry into a transparent, data-driven ecosystem. With 300,000+ users, we are scaling fast and looking for a strong PHP developer to join our team.
Key Responsibilities:
– Develop and maintain high-load modules of the product
– Contribute to migration and development on Laravel
– Optimize backend performance and scalability
– Integrate with third-party systems and services
– Write clean, maintainable, well-documented code
– Participate in code reviews, task planning, and architecture discussions
✦ Qualifications:
– 5+ years of commercial backend development experience
– Strong skills in PHP (8.4) and related technologies (MySQL, MongoDB, Redis, Elasticsearch, Docker)
– Bonus: Full-stack development experience, Highload, Big Data, or ML background
– Ability to read and write in English (spoken not required, team is Russian-speaking)
✦ Preferred Qualifications:
– Familiarity with frontend (Bootstrap 5, jQuery)
Location: Remote (team across CIS & USA; overlap with Boston partners needed)
We Offer:
– Competitive salary: from $4,500 USD (negotiable)
– 100% remote work
– Flexible hours (10:00–19:00 or 11:00–20:00 MSK)
– 21 days of paid vacation
– Startup culture: freedom, minimal bureaucracy, and initiative rewarded
Contact: @miss_charmell
✦ Please forward the job posting when applying.
✦ @HOLDER_JOB_DEVS
$4,500/month (negotiable)
#vacancy #job #relocation #вакансия #it #remote #middle #senior #php #developer
Company: Realmo
✦ Job Denoscription:
Realmo is building a cutting-edge digital platform for the commercial real estate market using AI, Big Data, and blockchain. Our mission is to transform a chaotic industry into a transparent, data-driven ecosystem. With 300,000+ users, we are scaling fast and looking for a strong PHP developer to join our team.
Key Responsibilities:
– Develop and maintain high-load modules of the product
– Contribute to migration and development on Laravel
– Optimize backend performance and scalability
– Integrate with third-party systems and services
– Write clean, maintainable, well-documented code
– Participate in code reviews, task planning, and architecture discussions
✦ Qualifications:
– 5+ years of commercial backend development experience
– Strong skills in PHP (8.4) and related technologies (MySQL, MongoDB, Redis, Elasticsearch, Docker)
– Bonus: Full-stack development experience, Highload, Big Data, or ML background
– Ability to read and write in English (spoken not required, team is Russian-speaking)
✦ Preferred Qualifications:
– Familiarity with frontend (Bootstrap 5, jQuery)
Location: Remote (team across CIS & USA; overlap with Boston partners needed)
We Offer:
– Competitive salary: from $4,500 USD (negotiable)
– 100% remote work
– Flexible hours (10:00–19:00 or 11:00–20:00 MSK)
– 21 days of paid vacation
– Startup culture: freedom, minimal bureaucracy, and initiative rewarded
Contact:
✦ Please forward the job posting when applying.
✦ @HOLDER_JOB_DEVS
🔥2💯1
Senior Python Backend Developer
$6,000 – $9,000/month + generous bonuses
#vacancy #job #relocation #it #remote #senior #python #developer #backend
Company: Not disclosed (crypto exchange project)
✦ Job Denoscription:
We are looking for an experienced and reliable development lead who truly loves building products. Our crypto exchange is live and processing real transactions, and we need someone to take ownership of the backend, ensure system stability, and lay the foundation for future growth.
Key Responsibilities:
– Lead backend development in Django with focus on code quality and performance
– Design architecture and implement best practices
– Integrate securely with Tron Scan API and blockchain services
– Implement and maintain custodial wallets for USDT (TRC20)
– Plan and execute gradual migration from Python to Go
– Solve complex technical challenges autonomously and make key project decisions
– Contribute to team scaling and hiring of new engineers
✦ Qualifications:
– 6+ years of experience with Python and Django
– 3+ years of experience with Go
– Strong knowledge of modern databases and web application security
– Proven experience with Tron Scan API and USDT (TRC20)
– Excellent soft skills: responsibility, independence, proactivity, problem-solving
– Ability to act as a technical leader and take ownership of the product
– Experience with Git and Docker
✦ Preferred Qualifications:
– Passion for software development and building high-quality products
Location: Remote, flexible schedule
We Offer:
– Fully remote work with flexible hours
– Competitive salary ($6,000–$9,000) + generous monthly bonuses
– Direct influence on the product and involvement in other projects
– Fast-paced team that values speed and results
Contact:@noscriptaone
✦ Please forward the job posting when applying.
✦ @HOLDER_JOB_DEVS
$6,000 – $9,000/month + generous bonuses
#vacancy #job #relocation #it #remote #senior #python #developer #backend
Company: Not disclosed (crypto exchange project)
✦ Job Denoscription:
We are looking for an experienced and reliable development lead who truly loves building products. Our crypto exchange is live and processing real transactions, and we need someone to take ownership of the backend, ensure system stability, and lay the foundation for future growth.
Key Responsibilities:
– Lead backend development in Django with focus on code quality and performance
– Design architecture and implement best practices
– Integrate securely with Tron Scan API and blockchain services
– Implement and maintain custodial wallets for USDT (TRC20)
– Plan and execute gradual migration from Python to Go
– Solve complex technical challenges autonomously and make key project decisions
– Contribute to team scaling and hiring of new engineers
✦ Qualifications:
– 6+ years of experience with Python and Django
– 3+ years of experience with Go
– Strong knowledge of modern databases and web application security
– Proven experience with Tron Scan API and USDT (TRC20)
– Excellent soft skills: responsibility, independence, proactivity, problem-solving
– Ability to act as a technical leader and take ownership of the product
– Experience with Git and Docker
✦ Preferred Qualifications:
– Passion for software development and building high-quality products
Location: Remote, flexible schedule
We Offer:
– Fully remote work with flexible hours
– Competitive salary ($6,000–$9,000) + generous monthly bonuses
– Direct influence on the product and involvement in other projects
– Fast-paced team that values speed and results
Contact:
✦ Please forward the job posting when applying.
✦ @HOLDER_JOB_DEVS
Lead Blockchain Developer
€8,000 – €10,000/month
#vacancy #job #lead #blockchain #typenoscript #golang #web3 #crypto #limassol #dubai #london
Company: International fintech company
(HQ Cyprus, offices in London & Dubai, established 2017)
✦ Job Denoscription:
We are seeking a Lead Blockchain Developer to drive blockchain integrations and backend services for a global fintech company. You’ll work with multiple blockchains, ensure system security, and lead a strong engineering team across international hubs.
Key Responsibilities:
– Develop and integrate blockchains (BTC, ETH, TRON, BNB, TON, etc.)
– Build indexers and transactional services
– Ensure security: private keys, audits, access control
– Lead a development team, perform code reviews, and mentor engineers
✦ Qualifications:
– 5+ years backend development experience, 3+ years in blockchain
– Expertise in TypeScript (Nest.js) / Go
– Familiarity with web3.js, ethers.js
– Strong experience with PostgreSQL and ORM frameworks
– English level B1+
✦ Conditions:
– On-site in Limassol (relocation package provided) or office-based in London/Dubai (no relocation)
– Official employment contract
– Benefits: English classes, SPA access, meals provided
Location: Limassol (preferred, with relocation) or London/Dubai offices
Contact:@anna_vdemina
✦ @HOLDER_JOB_DEVS
€8,000 – €10,000/month
#vacancy #job #lead #blockchain #typenoscript #golang #web3 #crypto #limassol #dubai #london
Company: International fintech company
(HQ Cyprus, offices in London & Dubai, established 2017)
✦ Job Denoscription:
We are seeking a Lead Blockchain Developer to drive blockchain integrations and backend services for a global fintech company. You’ll work with multiple blockchains, ensure system security, and lead a strong engineering team across international hubs.
Key Responsibilities:
– Develop and integrate blockchains (BTC, ETH, TRON, BNB, TON, etc.)
– Build indexers and transactional services
– Ensure security: private keys, audits, access control
– Lead a development team, perform code reviews, and mentor engineers
✦ Qualifications:
– 5+ years backend development experience, 3+ years in blockchain
– Expertise in TypeScript (Nest.js) / Go
– Familiarity with web3.js, ethers.js
– Strong experience with PostgreSQL and ORM frameworks
– English level B1+
✦ Conditions:
– On-site in Limassol (relocation package provided) or office-based in London/Dubai (no relocation)
– Official employment contract
– Benefits: English classes, SPA access, meals provided
Location: Limassol (preferred, with relocation) or London/Dubai offices
Contact:
✦ Please forward the job posting when applying.
✦ @HOLDER_JOB_DEVS
🥱2👨💻2
Senior Frontend Engineer
$110k–140k/year + tokens + performance bonus
#frontend #typenoscript #react #web3 #remote
Company: Defuse Labs (Near Intents team)
✦ Job Denoscription:
Defuse Labs, the team behind Near Intents, is hiring a senior frontend engineer. NEAR is one of the largest blockchain ecosystems, known for speed, scaling, and low fees. The role focuses on building advanced frontend solutions, SDKs, and libraries for a growing Web3 product.
Key Responsibilities:
– Develop and maintain frontend applications using TypeScript and React
– Build SDKs/libraries for external developers
– Implement state management and state machines
– Collaborate with core engineers on Intents infrastructure
✦ Qualifications:
– 5+ years of frontend development experience with public products and code on GitHub
– Strong expertise in TypeScript + React
– Experience in SDK/library development
– Deep understanding of state management and state machines
– Proven professional Web3 experience
✦ Preferred Qualifications:
– Previous contributions to blockchain or DeFi projects
– Experience in performance optimization and scalability for dApps
Location: Remote
Contact:@AlbinaMakarova
@HOLDER_JOB_DEVS
$110k–140k/year + tokens + performance bonus
#frontend #typenoscript #react #web3 #remote
Company: Defuse Labs (Near Intents team)
✦ Job Denoscription:
Defuse Labs, the team behind Near Intents, is hiring a senior frontend engineer. NEAR is one of the largest blockchain ecosystems, known for speed, scaling, and low fees. The role focuses on building advanced frontend solutions, SDKs, and libraries for a growing Web3 product.
Key Responsibilities:
– Develop and maintain frontend applications using TypeScript and React
– Build SDKs/libraries for external developers
– Implement state management and state machines
– Collaborate with core engineers on Intents infrastructure
✦ Qualifications:
– 5+ years of frontend development experience with public products and code on GitHub
– Strong expertise in TypeScript + React
– Experience in SDK/library development
– Deep understanding of state management and state machines
– Proven professional Web3 experience
✦ Preferred Qualifications:
– Previous contributions to blockchain or DeFi projects
– Experience in performance optimization and scalability for dApps
Location: Remote
Contact:
✦ Please forward the job posting when applying.
@HOLDER_JOB_DEVS
💯5
Full-Stack Developer (JavaScript/TypeScript)
$4000–6000/month
#Vacancy #Developer #Fullstack #TypeScript #Solana #Crypto #Blockchain #Fulltime #Remote
Company: Web3 Holding (Multi-project ecosystem)
✦ Job Denoscription:
A Web3 holding company is expanding its development team to build products bridging Web2 and Web3 technologies. The role involves full-stack development across wallet integration, blockchain infrastructure, and frontend tools, with future opportunities in mobile and smart contract development.
Key Responsibilities:
– Integrate Wagmi Wallet Connector
– Deploy PKI key server and blockchain explorer (REST API)
– Build Ethereum RPC-JSON node in JavaScript
– Develop frontend demo for Nullmask
– Contribute to future products (browser extension, Android/iOS apps, Solidity contracts)
✦ Qualifications:
– Strong proficiency in JavaScript/TypeScript
– 2–4 years of full-stack experience
– Ability to work independently
– English and Russian at B2+ level
✦ Preferred Qualifications:
– Familiarity with blockchain development
– Experience with wallet SDKs or smart contract integration
Location: Remote
Contact:@Michael_Terner
@HOLDER_JOB_DEVS
$4000–6000/month
#Vacancy #Developer #Fullstack #TypeScript #Solana #Crypto #Blockchain #Fulltime #Remote
Company: Web3 Holding (Multi-project ecosystem)
✦ Job Denoscription:
A Web3 holding company is expanding its development team to build products bridging Web2 and Web3 technologies. The role involves full-stack development across wallet integration, blockchain infrastructure, and frontend tools, with future opportunities in mobile and smart contract development.
Key Responsibilities:
– Integrate Wagmi Wallet Connector
– Deploy PKI key server and blockchain explorer (REST API)
– Build Ethereum RPC-JSON node in JavaScript
– Develop frontend demo for Nullmask
– Contribute to future products (browser extension, Android/iOS apps, Solidity contracts)
✦ Qualifications:
– Strong proficiency in JavaScript/TypeScript
– 2–4 years of full-stack experience
– Ability to work independently
– English and Russian at B2+ level
✦ Preferred Qualifications:
– Familiarity with blockchain development
– Experience with wallet SDKs or smart contract integration
Location: Remote
Contact:
✦ Please forward the job posting when applying.
@HOLDER_JOB_DEVS
🔥3💯1
Senior Java Developer (Trading Infrastructure Engineer)
from $6800/month gross (depending on location)
#Vacancy #Developer #Java #Trading #Infrastructure #Fintech #Fulltime #Remote #Poland #Cyprus #Georgia #Serbia
Company: FinDev LLC
✦ Job Denoscription:
FinDev LLC is looking for a Senior Java Developer to enhance and maintain its proprietary trading infrastructure. The role focuses on real-time trading platforms, order management, and exchange connectivity, ensuring reliability and low latency across global financial systems.
Key Responsibilities:
– Develop and maintain Java-based trading software stack
– Implement order management, compliance, and routing systems
– Design and build next-gen real-time trading platforms
– Troubleshoot and support global trading systems
– Build drop-copy feeds and ensure fail-safe execution report delivery
✦ Qualifications:
– 6+ years of professional Java experience
– Degree in Computer Science or related field
– Strong knowledge of Event-Driven Architecture
– Experience with trading or low-latency systems
– Familiarity with databases (Snowflake, Postgres) and Azure
– Proficiency in Python or another noscripting language
✦ Preferred Qualifications:
– Experience in Fixed Income domain
– Interest in transitioning to Rust
Location: Poland / Cyprus / Georgia / Serbia (remote or hybrid options available)
Contact:@MariiaDia
✦ @HOLDER_JOB_DEVS
from $6800/month gross (depending on location)
#Vacancy #Developer #Java #Trading #Infrastructure #Fintech #Fulltime #Remote #Poland #Cyprus #Georgia #Serbia
Company: FinDev LLC
✦ Job Denoscription:
FinDev LLC is looking for a Senior Java Developer to enhance and maintain its proprietary trading infrastructure. The role focuses on real-time trading platforms, order management, and exchange connectivity, ensuring reliability and low latency across global financial systems.
Key Responsibilities:
– Develop and maintain Java-based trading software stack
– Implement order management, compliance, and routing systems
– Design and build next-gen real-time trading platforms
– Troubleshoot and support global trading systems
– Build drop-copy feeds and ensure fail-safe execution report delivery
✦ Qualifications:
– 6+ years of professional Java experience
– Degree in Computer Science or related field
– Strong knowledge of Event-Driven Architecture
– Experience with trading or low-latency systems
– Familiarity with databases (Snowflake, Postgres) and Azure
– Proficiency in Python or another noscripting language
✦ Preferred Qualifications:
– Experience in Fixed Income domain
– Interest in transitioning to Rust
Location: Poland / Cyprus / Georgia / Serbia (remote or hybrid options available)
Contact:
🔵Please forward the job posting when applying.✦ @HOLDER_JOB_DEVS
👨💻3💯1🎅1
Lead Blockchain Developer
$5000–10000/month (net)
#vacancy #job #relocation #it #remote #crypto #web3 #lead #typenoscript #blockchain #cyprus
Company: International IT Holding
✦ Job Denoscription:
An international product IT holding is seeking a Lead Blockchain Developer to join its Cyprus-based team. The company builds global digital communication tools, payment integrations, and user-centric products. The role involves leading blockchain development, managing integrations, and mentoring engineers.
Key Responsibilities:
– Plan and lead blockchain integration strategy and execution
– Manage and develop a team of blockchain engineers
– Design and maintain transaction indexers and translators for BTC, ETH, TRON, BNB, TON, LTC, etc.
– Develop scalable backend services in TypeScript (Nest.js) and/or Go
– Implement monitoring, alerts, and SLO/SLI for blockchain operations
– Ensure transaction integrity, access control, and data security
– Conduct code reviews, mentor engineers, and support team growth
✦ Qualifications:
– 3+ years in backend development and 3+ years in blockchain projects
– Strong understanding of blockchain APIs and networks
– Hands-on experience with web3.js or ethers.js
– Proficiency in TypeScript (Nest.js) and/or Go
– Experience with nodes, RPC/REST/gRPC APIs
– Expertise in PostgreSQL, ORM, and query optimization
– Solid background in testing and QA processes
– Proven leadership and mentoring experience
✦ Preferred Qualifications:
– Experience building blockchain indexers and financial transaction systems
– Familiarity with security and audit procedures in crypto infrastructure
Location: Cyprus (office)
Contact:@borovskiynikita
✦ Please forward the job posting when applying.
@HOLDER_JOB_DEVS
$5000–10000/month (net)
#vacancy #job #relocation #it #remote #crypto #web3 #lead #typenoscript #blockchain #cyprus
Company: International IT Holding
✦ Job Denoscription:
An international product IT holding is seeking a Lead Blockchain Developer to join its Cyprus-based team. The company builds global digital communication tools, payment integrations, and user-centric products. The role involves leading blockchain development, managing integrations, and mentoring engineers.
Key Responsibilities:
– Plan and lead blockchain integration strategy and execution
– Manage and develop a team of blockchain engineers
– Design and maintain transaction indexers and translators for BTC, ETH, TRON, BNB, TON, LTC, etc.
– Develop scalable backend services in TypeScript (Nest.js) and/or Go
– Implement monitoring, alerts, and SLO/SLI for blockchain operations
– Ensure transaction integrity, access control, and data security
– Conduct code reviews, mentor engineers, and support team growth
✦ Qualifications:
– 3+ years in backend development and 3+ years in blockchain projects
– Strong understanding of blockchain APIs and networks
– Hands-on experience with web3.js or ethers.js
– Proficiency in TypeScript (Nest.js) and/or Go
– Experience with nodes, RPC/REST/gRPC APIs
– Expertise in PostgreSQL, ORM, and query optimization
– Solid background in testing and QA processes
– Proven leadership and mentoring experience
✦ Preferred Qualifications:
– Experience building blockchain indexers and financial transaction systems
– Familiarity with security and audit procedures in crypto infrastructure
Location: Cyprus (office)
Contact:
@HOLDER_JOB_DEVS
🥱4💯2🔥1
Full-Stack Developer (TypeScript/Node.js, Solana/EVM)
$4000–5000/month (USDT)
#vacancy #fullstack #nodejs #typenoscript #solana #evm #remote #defi #trading
Company: Something Tools
✦ Job Denoscription:
Something Tools is looking for a Middle+ Full-Stack Developer with solid experience in Solana and understanding of EVM. The role focuses on building high-load backend and DeFi trading integrations with a small, fast-moving team that values clean code and independence.
Key Responsibilities:
– Develop business logic for the frontend (data/state/performance focus)
– Integrate frontend with backend (REST/WebSocket) including SDKs, retries, and idempotency
– Scale solutions across multiple blockchains (Solana → EVM/Monad)
– Build lightweight backend services (BFF, proxy, CRUD, hooks)
– Work with PostgreSQL (indexes, optimization) and Redis (TTL/invalidation)
– Review and mentor frontend developers
✦ Qualifications:
– 3–5+ years with TypeScript/Node.js
– Proven experience in DeFi/AMM projects
– Knowledge of wallets, transactions, SPL/ERC standards
– Work with DeFi aggregators (Jupiter, 1inch)
– Experience with real-time and high-load architectures
– Familiarity with trading systems or bots
✦ Preferred Qualifications:
– Skills in Rust, Python, or Solidity
– Experience with monitoring tools (Prometheus, Grafana, Sentry)
Location: Remote (GMT+1–GMT+4)
Contact:@GeeKreutz
✦ Please forward the job posting when applying.
🫤 @HOLDER_JOB_DEVS
$4000–5000/month (USDT)
#vacancy #fullstack #nodejs #typenoscript #solana #evm #remote #defi #trading
Company: Something Tools
✦ Job Denoscription:
Something Tools is looking for a Middle+ Full-Stack Developer with solid experience in Solana and understanding of EVM. The role focuses on building high-load backend and DeFi trading integrations with a small, fast-moving team that values clean code and independence.
Key Responsibilities:
– Develop business logic for the frontend (data/state/performance focus)
– Integrate frontend with backend (REST/WebSocket) including SDKs, retries, and idempotency
– Scale solutions across multiple blockchains (Solana → EVM/Monad)
– Build lightweight backend services (BFF, proxy, CRUD, hooks)
– Work with PostgreSQL (indexes, optimization) and Redis (TTL/invalidation)
– Review and mentor frontend developers
✦ Qualifications:
– 3–5+ years with TypeScript/Node.js
– Proven experience in DeFi/AMM projects
– Knowledge of wallets, transactions, SPL/ERC standards
– Work with DeFi aggregators (Jupiter, 1inch)
– Experience with real-time and high-load architectures
– Familiarity with trading systems or bots
✦ Preferred Qualifications:
– Skills in Rust, Python, or Solidity
– Experience with monitoring tools (Prometheus, Grafana, Sentry)
Location: Remote (GMT+1–GMT+4)
Contact:
✦ Please forward the job posting when applying.
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🔥3🥱2💯1👨💻1
Software Engineer, Data Infrastructure
$200,000/year + Equity
#vacancy #web3 #data #engineering #backend #infrastructure #alchemy #newyork #fulltime
Company: Alchemy
✦ Job Denoscription:
Alchemy’s mission is to bring Web3 to a billion people by providing developers with the tools to build scalable onchain products. The platform powers over 70% of top Web3 teams and serves 100+ million users globally. As a Software Engineer in Data Infrastructure, you’ll work on one of the most advanced distributed systems in blockchain, maintaining and optimizing high-throughput data pipelines and backend systems.
Key Responsibilities:
– Maintain batch pipelines powering production systems
– Build frameworks for data pipeline creation and debugging
– Monitor data quality, latency, and ensure reliability
– Develop DAG workflows for batch processing and storage
– Aggregate logs across multiple clouds and regions
– Design and implement next-generation data warehouse systems
✦ Qualifications:
– Bachelor’s in Computer Science, Engineering, or related field
– 4+ years of experience in data infrastructure or data engineering
– Proficiency with orchestration frameworks (Airflow), Jenkins, Pachyderm
✦ Preferred Qualifications:
– Experience with large-scale distributed systems
– Strong knowledge of data quality monitoring and alerting systems
Location: New York, USA
Contact:
https://jobs.arbitrum.io/companies/alchemy-2/jobs/60521550-software-engineer-data-infrastructure#content
Apply via Alchemy careers page — mention
$200,000/year + Equity
#vacancy #web3 #data #engineering #backend #infrastructure #alchemy #newyork #fulltime
Company: Alchemy
✦ Job Denoscription:
Alchemy’s mission is to bring Web3 to a billion people by providing developers with the tools to build scalable onchain products. The platform powers over 70% of top Web3 teams and serves 100+ million users globally. As a Software Engineer in Data Infrastructure, you’ll work on one of the most advanced distributed systems in blockchain, maintaining and optimizing high-throughput data pipelines and backend systems.
Key Responsibilities:
– Maintain batch pipelines powering production systems
– Build frameworks for data pipeline creation and debugging
– Monitor data quality, latency, and ensure reliability
– Develop DAG workflows for batch processing and storage
– Aggregate logs across multiple clouds and regions
– Design and implement next-generation data warehouse systems
✦ Qualifications:
– Bachelor’s in Computer Science, Engineering, or related field
– 4+ years of experience in data infrastructure or data engineering
– Proficiency with orchestration frameworks (Airflow), Jenkins, Pachyderm
✦ Preferred Qualifications:
– Experience with large-scale distributed systems
– Strong knowledge of data quality monitoring and alerting systems
Location: New York, USA
Contact:
https://jobs.arbitrum.io/companies/alchemy-2/jobs/60521550-software-engineer-data-infrastructure#content
Apply via Alchemy careers page — mention
t.me/holder_job_devs🔥4💯1
ML Researcher & Engineer
$150,000–180,000/year (gross)
#MLResearch #AI #Compilers #LLM #RemoteJob #SeniorEngineer #FinanceTech #Research #DeepLearning
Company: Stealth FinTech AI Startup
✦ Job Denoscription:
A research-driven startup is building a foundation model for financial markets at the intersection of LLMs and time series. The team is looking for a Senior/Lead ML Researcher & Engineer to design compiler-based systems leveraging large language models and reinforcement learning for code optimization and hardware-aware performance.
Key Responsibilities:
– Develop LLM-based compilers using IRs (LLVM, MLIR, CUDA, Verilog)
– Apply research from SwizzlePerf, COMPASS, Cuda-L1, etc.
– Integrate RL and meta-prompts for compilation optimization
– Build models for code analysis and hardware-level efficiency
– Prototype AI agents for compilation stages
✦ Qualifications:
– Proven experience with LLMs for code generation or compilers
– Strong research and production coding skills
– Proficiency with ML frameworks (PyTorch, TensorFlow)
– Ability to collaborate with low-level engineering teams
✦ Preferred Qualifications:
– Knowledge of compilers and intermediate representations
– Experience applying LLMs for code optimization
– Background in low-level or hardware-oriented development
– Product mindset and innovation focus
Location: Remote or relocation to Serbia / Netherlands (visa support provided)
Contact: @sobolevavalery
🦍 @holder_job_devs
$150,000–180,000/year (gross)
#MLResearch #AI #Compilers #LLM #RemoteJob #SeniorEngineer #FinanceTech #Research #DeepLearning
Company: Stealth FinTech AI Startup
✦ Job Denoscription:
A research-driven startup is building a foundation model for financial markets at the intersection of LLMs and time series. The team is looking for a Senior/Lead ML Researcher & Engineer to design compiler-based systems leveraging large language models and reinforcement learning for code optimization and hardware-aware performance.
Key Responsibilities:
– Develop LLM-based compilers using IRs (LLVM, MLIR, CUDA, Verilog)
– Apply research from SwizzlePerf, COMPASS, Cuda-L1, etc.
– Integrate RL and meta-prompts for compilation optimization
– Build models for code analysis and hardware-level efficiency
– Prototype AI agents for compilation stages
✦ Qualifications:
– Proven experience with LLMs for code generation or compilers
– Strong research and production coding skills
– Proficiency with ML frameworks (PyTorch, TensorFlow)
– Ability to collaborate with low-level engineering teams
✦ Preferred Qualifications:
– Knowledge of compilers and intermediate representations
– Experience applying LLMs for code optimization
– Background in low-level or hardware-oriented development
– Product mindset and innovation focus
Location: Remote or relocation to Serbia / Netherlands (visa support provided)
✦ Please forward the job posting when applying.Contact: @sobolevavalery
🦍 @holder_job_devs
😈3👏1
Fullstack Developer (Solidity + React)
$3000–5000/month (USDT)
#Developer #Fullstack #Web3 #Crypto #DeFi #Solidity #React #Remote #Удаленно
Company: Confidential Web3 Project (DeFi MVP)
✦ Job Denoscription:
A Web3 team is developing a DeFi MVP and seeks a Fullstack Developer skilled in Solidity and React. The role involves building and integrating smart contracts for AMM and Lending protocols, contributing to architecture design, and shaping the project’s technical foundation.
Key Responsibilities:
– Develop and deploy smart contracts (AMM / Lending logic)
– Integrate blockchain contracts with frontend
– Collaborate on MVP architecture and core logic
✦ Qualifications:
– Strong knowledge of Solidity and Hardhat
– Proficiency in TypeScript, React, MobX
– Understanding of AMM and Lending protocol mechanics
✦ Preferred Qualifications:
– Previous experience in DeFi or Web3 product development
– Ability to work autonomously on MVP-stage projects
Location: Remote (flexible, part-time/project-based)
Contact: @kakdelalidok
🦍 @holder_job_devs
$3000–5000/month (USDT)
#Developer #Fullstack #Web3 #Crypto #DeFi #Solidity #React #Remote #Удаленно
Company: Confidential Web3 Project (DeFi MVP)
✦ Job Denoscription:
A Web3 team is developing a DeFi MVP and seeks a Fullstack Developer skilled in Solidity and React. The role involves building and integrating smart contracts for AMM and Lending protocols, contributing to architecture design, and shaping the project’s technical foundation.
Key Responsibilities:
– Develop and deploy smart contracts (AMM / Lending logic)
– Integrate blockchain contracts with frontend
– Collaborate on MVP architecture and core logic
✦ Qualifications:
– Strong knowledge of Solidity and Hardhat
– Proficiency in TypeScript, React, MobX
– Understanding of AMM and Lending protocol mechanics
✦ Preferred Qualifications:
– Previous experience in DeFi or Web3 product development
– Ability to work autonomously on MVP-stage projects
Location: Remote (flexible, part-time/project-based)
Contact: @kakdelalidok
✦ Please forward the job posting when applying.🦍 @holder_job_devs
😈5🥱1🐳1💯1
Web3 Fullstack Junior Developer (Growth Opportunity)
~$5000 / month
#Web3 #Fullstack #DeFi #Blockchain #Developer #Remote
Company:
Metrix Finance — a decentralized finance platform providing advanced on-chain analytics and portfolio management tools. The team is expanding and looking for a motivated Web3 Junior Developer eager to grow in a fast-paced DeFi environment.
✦ Job Denoscription:
Join Metrix Finance to enhance platform performance, fix bugs, and implement new features. The role offers exposure to subgraphs, APIs, smart contract integrations, and collaborative work on scalable Web3 solutions. Ideal for developers ready to level up in DeFi and fullstack blockchain development.
Key Responsibilities:
– Fix existing bugs and improve UI/UX.
– Implement new technologies (subgraphs, substreams).
– Develop new platform features and protocol integrations.
– Create data retrieval/indexing solutions (contracts, APIs, subgraphs).
– Collaborate with team members, participate in code reviews and architecture discussions.
– Stay updated on blockchain security and trends.
– Provide daily progress updates.
✦ Qualifications:
– Hands-on Web3 development experience and DeFi knowledge.
– Background in SaaS development.
– Proficient in JavaScript / TypeScript.
– Familiar with Web3 tools (Ethers.js, Web3.js, Viem).
– Understanding of Next.js, TailwindCSS, PostgreSQL, Prisma.
– Knowledge of Web3 data access (API, subgraphs, RPC).
✦ Preferred Qualifications:
– Experience with smart contracts (EVM / Solana).
– Familiarity with subgraphs and data caching.
– Strong math/technical background.
– Personally engaged in DeFi.
– Experience with Wagmi hooks.
Location: Remote (Full-time, flexible hours)
Contact:@jakeacall
✦ Please forward the job posting when applying.
🫡 ✦ @HOLDER_JOB_DEVS
~$5000 / month
#Web3 #Fullstack #DeFi #Blockchain #Developer #Remote
Company:
Metrix Finance — a decentralized finance platform providing advanced on-chain analytics and portfolio management tools. The team is expanding and looking for a motivated Web3 Junior Developer eager to grow in a fast-paced DeFi environment.
✦ Job Denoscription:
Join Metrix Finance to enhance platform performance, fix bugs, and implement new features. The role offers exposure to subgraphs, APIs, smart contract integrations, and collaborative work on scalable Web3 solutions. Ideal for developers ready to level up in DeFi and fullstack blockchain development.
Key Responsibilities:
– Fix existing bugs and improve UI/UX.
– Implement new technologies (subgraphs, substreams).
– Develop new platform features and protocol integrations.
– Create data retrieval/indexing solutions (contracts, APIs, subgraphs).
– Collaborate with team members, participate in code reviews and architecture discussions.
– Stay updated on blockchain security and trends.
– Provide daily progress updates.
✦ Qualifications:
– Hands-on Web3 development experience and DeFi knowledge.
– Background in SaaS development.
– Proficient in JavaScript / TypeScript.
– Familiar with Web3 tools (Ethers.js, Web3.js, Viem).
– Understanding of Next.js, TailwindCSS, PostgreSQL, Prisma.
– Knowledge of Web3 data access (API, subgraphs, RPC).
✦ Preferred Qualifications:
– Experience with smart contracts (EVM / Solana).
– Familiarity with subgraphs and data caching.
– Strong math/technical background.
– Personally engaged in DeFi.
– Experience with Wagmi hooks.
Location: Remote (Full-time, flexible hours)
Contact:
✦ Please forward the job posting when applying.
🫡 ✦ @HOLDER_JOB_DEVS
👏4🥱1
Senior Machine Learning Engineer (LLM / NLP / AI)
$5,000–$9,000
#MLE #AI #LLM #NLP #MachineLearning #Remote
Company:
HighSky — a full-cycle AI company developing solutions from business analysis to production-ready ML systems. The team builds and maintains advanced models in text, audio generation, and blockchain data extraction.
✦ Job Denoscription:
We are seeking a Senior Machine Learning Engineer to design, develop, and deploy ML solutions across diverse domains. The role involves building MVPs, researching SOTA models, and delivering production-grade systems that drive real-world impact.
Key Responsibilities:
– Develop MVPs for text/audio generation and data extraction tasks.
– Design solution architectures, select databases and infrastructure.
– Research, test, and adapt SOTA algorithms for production.
– Fine-tune ML models and optimize hyperparameters.
– Maintain and monitor deployed ML systems.
✦ Qualifications:
– 5+ years of experience in ML/DL and data analysis.
– Strong Python development skills.
– Proven commercial experience building ML products from scratch.
– Degree in Computer Science, Applied Mathematics, or related field.
✦ Preferred Qualifications:
– Academic research in Computer Science.
– Achievements in Kaggle/Boosters competitions or hackathons.
Location: Remote
Contact:@perovvaa
🫡 ✦ @HOLDER_JOB_DEVS
$5,000–$9,000
#MLE #AI #LLM #NLP #MachineLearning #Remote
Company:
HighSky — a full-cycle AI company developing solutions from business analysis to production-ready ML systems. The team builds and maintains advanced models in text, audio generation, and blockchain data extraction.
✦ Job Denoscription:
We are seeking a Senior Machine Learning Engineer to design, develop, and deploy ML solutions across diverse domains. The role involves building MVPs, researching SOTA models, and delivering production-grade systems that drive real-world impact.
Key Responsibilities:
– Develop MVPs for text/audio generation and data extraction tasks.
– Design solution architectures, select databases and infrastructure.
– Research, test, and adapt SOTA algorithms for production.
– Fine-tune ML models and optimize hyperparameters.
– Maintain and monitor deployed ML systems.
✦ Qualifications:
– 5+ years of experience in ML/DL and data analysis.
– Strong Python development skills.
– Proven commercial experience building ML products from scratch.
– Degree in Computer Science, Applied Mathematics, or related field.
✦ Preferred Qualifications:
– Academic research in Computer Science.
– Achievements in Kaggle/Boosters competitions or hackathons.
Location: Remote
Contact:
✦ Please forward the job posting when applying.🫡 ✦ @HOLDER_JOB_DEVS
😈3🐳1
React Web3 Developer
~$5000
#React #Web3 #Frontend #TypeScript #Blockchain #Remote
Company:
Unigox — a next-generation infrastructure platform bridging fiat and crypto. The team is building a secure, automated, and global ecosystem for managing digital assets efficiently.
✦ Job Denoscription:
We are looking for a React Web3 Developer to build and maintain a high-quality P2P web platform. The role involves creating adaptive mobile-first interfaces, integrating smart contracts and wallets, and ensuring smooth, secure product operation in collaboration with backend and design teams.
Key Responsibilities:
– Develop and maintain a P2P web platform using React, TypeScript, and Web3.
– Create adaptive, mobile-first user interfaces with strong UX focus.
– Integrate smart contracts and crypto wallets using modern Web3 tools.
– Collaborate with backend and design teams on new features and releases.
– Troubleshoot UI/integration issues and ensure product stability.
– Participate in code reviews and maintain the shared component library.
✦ Qualifications:
– 3+ years of experience as a Frontend or React Developer in production projects.
– Strong knowledge of React, TypeScript, hooks, and modular frontend architecture.
– Hands-on Web3 experience (wallets, blockchain data, transactions).
– Skilled in API integration, state management, and performance optimization.
– Good design sense and ability to deliver pixel-perfect Figma layouts.
– Proactive and communicative, comfortable in a startup environment.
✦ Preferred Qualifications:
– Understanding of blockchain networks (EVM, Solana) and P2P transaction logic.
Location: Remote
Contact:@dendidoto
✦ Please forward the job posting when applying.
🫡 ✦ @HOLDER_JOB_DEVS
~$5000
#React #Web3 #Frontend #TypeScript #Blockchain #Remote
Company:
Unigox — a next-generation infrastructure platform bridging fiat and crypto. The team is building a secure, automated, and global ecosystem for managing digital assets efficiently.
✦ Job Denoscription:
We are looking for a React Web3 Developer to build and maintain a high-quality P2P web platform. The role involves creating adaptive mobile-first interfaces, integrating smart contracts and wallets, and ensuring smooth, secure product operation in collaboration with backend and design teams.
Key Responsibilities:
– Develop and maintain a P2P web platform using React, TypeScript, and Web3.
– Create adaptive, mobile-first user interfaces with strong UX focus.
– Integrate smart contracts and crypto wallets using modern Web3 tools.
– Collaborate with backend and design teams on new features and releases.
– Troubleshoot UI/integration issues and ensure product stability.
– Participate in code reviews and maintain the shared component library.
✦ Qualifications:
– 3+ years of experience as a Frontend or React Developer in production projects.
– Strong knowledge of React, TypeScript, hooks, and modular frontend architecture.
– Hands-on Web3 experience (wallets, blockchain data, transactions).
– Skilled in API integration, state management, and performance optimization.
– Good design sense and ability to deliver pixel-perfect Figma layouts.
– Proactive and communicative, comfortable in a startup environment.
✦ Preferred Qualifications:
– Understanding of blockchain networks (EVM, Solana) and P2P transaction logic.
Location: Remote
Contact:
✦ Please forward the job posting when applying.
🫡 ✦ @HOLDER_JOB_DEVS
Senior Backend Ruby Developer (TON Ecosystem)
from $5,000/month (net) + bonuses
#Ruby #Backend #TON #Blockchain #DeFi #Remote
Company:
CryptoBank TON — a crypto banking platform built on The Open Network (TON) ecosystem. The team develops high-load systems for secure, fast, and automated blockchain-based financial solutions.
✦ Job Denoscription:
We’re looking for a Senior Backend Ruby Developer with proven TON experience to build and optimize the backend of a next-generation crypto banking platform. You’ll design scalable systems, integrate blockchain components, and ensure top-level security and performance.
Key Responsibilities:
– Develop backend logic in Ruby for the CryptoBank TON platform.
– Integrate with the TON ecosystem, Prisma ORM, and Neon DB.
– Optimize performance and handle high-load architecture.
– Work with APIs (Hono, Vite) and ensure code quality via reviews.
– Collaborate with the team on architecture and product improvements.
✦ Qualifications:
– 5+ years of professional experience in Ruby backend development.
– Proven hands-on experience with The Open Network (TON).
– Strong understanding of algorithms, data structures, and security.
– Experience with Vite, Hono, Prisma (ORM), and Neon (PostgreSQL).
– Ability to work in high-load environments and deliver stable systems.
✦ Preferred Qualifications:
– Familiarity with DeFi and smart contracts on TON.
– Knowledge of JS/TS for frontend or integrations.
Location: Remote
Contact:@leo_lomaev
🫡 ✦ @HOLDER_JOB_DEVS
from $5,000/month (net) + bonuses
#Ruby #Backend #TON #Blockchain #DeFi #Remote
Company:
CryptoBank TON — a crypto banking platform built on The Open Network (TON) ecosystem. The team develops high-load systems for secure, fast, and automated blockchain-based financial solutions.
✦ Job Denoscription:
We’re looking for a Senior Backend Ruby Developer with proven TON experience to build and optimize the backend of a next-generation crypto banking platform. You’ll design scalable systems, integrate blockchain components, and ensure top-level security and performance.
Key Responsibilities:
– Develop backend logic in Ruby for the CryptoBank TON platform.
– Integrate with the TON ecosystem, Prisma ORM, and Neon DB.
– Optimize performance and handle high-load architecture.
– Work with APIs (Hono, Vite) and ensure code quality via reviews.
– Collaborate with the team on architecture and product improvements.
✦ Qualifications:
– 5+ years of professional experience in Ruby backend development.
– Proven hands-on experience with The Open Network (TON).
– Strong understanding of algorithms, data structures, and security.
– Experience with Vite, Hono, Prisma (ORM), and Neon (PostgreSQL).
– Ability to work in high-load environments and deliver stable systems.
✦ Preferred Qualifications:
– Familiarity with DeFi and smart contracts on TON.
– Knowledge of JS/TS for frontend or integrations.
Location: Remote
Contact:
✦ Please forward the job posting when applying.
🫡 ✦ @HOLDER_JOB_DEVS
💯4🤷♂3
SENIOR Solidity Backend Engineer (DeFi Protocol)
$4,000–$8,000/month + token incentives
#Solidity #DeFi #SmartContracts #Blockchain #Engineering #Remote
Company:
Stealth-stage DeFi project building the next generation of on-chain financial infrastructure. The protocol merges advanced virtual market mechanics, collateralized systems, and automated risk management into a secure, scalable framework.
✦ Job Denoscription:
We’re looking for a Senior Solidity Engineer to architect, implement, and optimize smart contracts for a high-performance DeFi protocol. You’ll collaborate with researchers and quants to build modular, secure systems that define the next evolution of decentralized finance.
Key Responsibilities:
– Design and deploy advanced Solidity contracts for core protocol logic.
– Review and mentor junior engineers, ensuring code quality.
– Translate financial models into on-chain architectures.
– Work with internal frameworks (Singleton patterns, Flash Accounting).
– Enhance protocol scalability, performance, and maintainability.
✦ Qualifications:
– 3+ years of professional Solidity experience with live deployments.
– Deep knowledge of DeFi architecture, gas optimization, and security.
– Strong grasp of AMM and virtual market frameworks.
– Proficiency with Foundry, Hardhat, and testing environments.
– Ability to lead and make key architectural decisions.
✦ Preferred Qualifications:
– Experience in protocol research or smart contract audits.
– Familiarity with complex collateralized and accounting systems.
Location: Remote
Contact:@dkdancen
🦍
🫡 ✦ @HOLDER_JOB_DEVS
$4,000–$8,000/month + token incentives
#Solidity #DeFi #SmartContracts #Blockchain #Engineering #Remote
Company:
Stealth-stage DeFi project building the next generation of on-chain financial infrastructure. The protocol merges advanced virtual market mechanics, collateralized systems, and automated risk management into a secure, scalable framework.
✦ Job Denoscription:
We’re looking for a Senior Solidity Engineer to architect, implement, and optimize smart contracts for a high-performance DeFi protocol. You’ll collaborate with researchers and quants to build modular, secure systems that define the next evolution of decentralized finance.
Key Responsibilities:
– Design and deploy advanced Solidity contracts for core protocol logic.
– Review and mentor junior engineers, ensuring code quality.
– Translate financial models into on-chain architectures.
– Work with internal frameworks (Singleton patterns, Flash Accounting).
– Enhance protocol scalability, performance, and maintainability.
✦ Qualifications:
– 3+ years of professional Solidity experience with live deployments.
– Deep knowledge of DeFi architecture, gas optimization, and security.
– Strong grasp of AMM and virtual market frameworks.
– Proficiency with Foundry, Hardhat, and testing environments.
– Ability to lead and make key architectural decisions.
✦ Preferred Qualifications:
– Experience in protocol research or smart contract audits.
– Familiarity with complex collateralized and accounting systems.
Location: Remote
Contact:
🦍
Please forward the job posting when applying.🫡 ✦ @HOLDER_JOB_DEVS
😈4🥱2🐳2
Rust Engineer (Blockchain)
Salary: $6,000–$8,000/month
#Rust #Blockchain #SmartContracts #RemoteWork #DeveloperJobs #Crypto
Company:
Blockchain development team building secure, high-performance decentralized systems. The company focuses on blockchain interoperability, scalability, and next-gen smart contract solutions.
✦ Job Denoscription:
We are hiring a Rust Engineer to design, build, and optimize blockchain applications. The role includes developing smart contracts, integrating with multiple platforms, and ensuring code quality and system performance in a remote, full-time environment.
Key Responsibilities:
– Develop and maintain blockchain applications in Rust.
– Optimize and test smart contracts for performance and security.
– Integrate with blockchain platforms (Polkadot, Solana, Near).
– Design system architecture and evaluate solutions.
– Conduct testing, debugging, and performance improvements.
– Participate in planning and time estimation.
✦ Qualifications:
– 3+ years of experience with Rust.
– Strong knowledge of blockchain technologies and ecosystems.
– Experience with Polkadot, Solana, or Near.
– Solid grasp of algorithms, data structures, and testing practices.
– English level: Intermediate or higher.
✦ Preferred Qualifications:
– Experience with WebAssembly, Solidity, or Move.
– Knowledge of Docker and CI/CD workflows.
– Understanding of cryptography and consensus mechanisms.
– Contributions to open-source projects.
Location: Remote (Full-time)
Contact:@limar_sheref
🫡 ✦ @HOLDER_JOB_DEVS
Salary: $6,000–$8,000/month
#Rust #Blockchain #SmartContracts #RemoteWork #DeveloperJobs #Crypto
Company:
Blockchain development team building secure, high-performance decentralized systems. The company focuses on blockchain interoperability, scalability, and next-gen smart contract solutions.
✦ Job Denoscription:
We are hiring a Rust Engineer to design, build, and optimize blockchain applications. The role includes developing smart contracts, integrating with multiple platforms, and ensuring code quality and system performance in a remote, full-time environment.
Key Responsibilities:
– Develop and maintain blockchain applications in Rust.
– Optimize and test smart contracts for performance and security.
– Integrate with blockchain platforms (Polkadot, Solana, Near).
– Design system architecture and evaluate solutions.
– Conduct testing, debugging, and performance improvements.
– Participate in planning and time estimation.
✦ Qualifications:
– 3+ years of experience with Rust.
– Strong knowledge of blockchain technologies and ecosystems.
– Experience with Polkadot, Solana, or Near.
– Solid grasp of algorithms, data structures, and testing practices.
– English level: Intermediate or higher.
✦ Preferred Qualifications:
– Experience with WebAssembly, Solidity, or Move.
– Knowledge of Docker and CI/CD workflows.
– Understanding of cryptography and consensus mechanisms.
– Contributions to open-source projects.
Location: Remote (Full-time)
Contact:
✦ Please forward the job posting when applying.🫡 ✦ @HOLDER_JOB_DEVS
🔥5
Middle / Senior Nest.js Backend Developer
Salary: $1,500–$4,500 net (hourly-based)
#NestJS #BackendDeveloper #NodeJS #Web3 #Blockchain #RemoteWork
Company:
MEEET — a blockchain-based social platform that incentivizes real-life interactions through NFTs and tokens. The product combines geolocation, AI-driven features, and Web3 mechanics into a next-gen social experience.
✦ Job Denoscription:
We’re looking for a Middle/Senior Backend Developer proficient in NestJS to build core backend services powering mobile and web applications. You’ll work on blockchain integrations, geolocation systems, AI-driven features, and WebSocket infrastructure in a fast-moving global team.
Key Responsibilities:
– Develop REST APIs using NestJS for mobile and web clients.
– Integrate with BNB Chain (NFTs, tokens).
– Build geolocation and cryptographic verification systems.
– Implement AI assistant integrations, recommendations, and behavior analysis.
– Develop marketplace features and analytics for B2B partners.
– Implement WebSockets and push notification systems.
✦ Qualifications:
– 3+ years of backend experience with Node.js and NestJS.
– Strong knowledge of TypeScript, MongoDB/PostgreSQL, Docker.
– Experience with REST APIs, Git, CI/CD, and Web3 basics.
– English: Upper-Intermediate+
✦ Preferred Qualifications:
– Experience with BNB Chain/Ethereum, Solidity.
– Swagger/OpenAPI, AI/ML integrations.
– Redis, TypeORM/Prisma, geolocation services.
– AWS/GCP, microservices, WebSockets.
Location: Remote (core hours 10:00–16:00 UTC)
Contact: Telegram:@leonety_lety
✦ Please forward the job posting when applying.
🫡 ✦ @HOLDER_JOB_DEVS
Salary: $1,500–$4,500 net (hourly-based)
#NestJS #BackendDeveloper #NodeJS #Web3 #Blockchain #RemoteWork
Company:
MEEET — a blockchain-based social platform that incentivizes real-life interactions through NFTs and tokens. The product combines geolocation, AI-driven features, and Web3 mechanics into a next-gen social experience.
✦ Job Denoscription:
We’re looking for a Middle/Senior Backend Developer proficient in NestJS to build core backend services powering mobile and web applications. You’ll work on blockchain integrations, geolocation systems, AI-driven features, and WebSocket infrastructure in a fast-moving global team.
Key Responsibilities:
– Develop REST APIs using NestJS for mobile and web clients.
– Integrate with BNB Chain (NFTs, tokens).
– Build geolocation and cryptographic verification systems.
– Implement AI assistant integrations, recommendations, and behavior analysis.
– Develop marketplace features and analytics for B2B partners.
– Implement WebSockets and push notification systems.
✦ Qualifications:
– 3+ years of backend experience with Node.js and NestJS.
– Strong knowledge of TypeScript, MongoDB/PostgreSQL, Docker.
– Experience with REST APIs, Git, CI/CD, and Web3 basics.
– English: Upper-Intermediate+
✦ Preferred Qualifications:
– Experience with BNB Chain/Ethereum, Solidity.
– Swagger/OpenAPI, AI/ML integrations.
– Redis, TypeORM/Prisma, geolocation services.
– AWS/GCP, microservices, WebSockets.
Location: Remote (core hours 10:00–16:00 UTC)
Contact: Telegram:
✦ Please forward the job posting when applying.
🫡 ✦ @HOLDER_JOB_DEVS
🔥3💯2
Windows App Developer (Rust / C# / React)
Salary: $3,000–$5,000/month
#Rust #CSharp #React #Windows #DesktopApps #Remote #Middle #Senior
Company:
A product-focused engineering team developing a native Windows desktop application with a multi-module architecture: Rust broker, WinUI overlay, and a cross-platform Tauri/React interface.
✦ Job Denoscription:
We’re seeking a Windows App Developer who feels confident working at the intersection of Rust, C#, and React. You’ll build low-level system modules, Windows overlays, and cross-platform UI components within a modern Tauri-based architecture.
Key Responsibilities:
– Develop and maintain the Rust-based Windows broker (FFI, Windows API automation).
– Build WinUI 3 overlays in C#/.NET for transparent, always-on-top windows.
– Implement UI components in React/TypeScript for Tauri pages.
– Integrate modules through Tauri commands, IPC, and HTTP APIs.
– Ensure performance, stability, and seamless communication across all layers.
✦ Qualifications:
– Intermediate/advanced Rust (Windows API, FFI, tokio).
– Strong C#/.NET experience with WinUI 3 and Windows desktop development.
– Solid TypeScript/React skills (Hooks, modular components).
– Familiarity with Tauri 2.0 (commands, IPC).
– Experience working with Windows SDK, Rust toolchain, Node.js, and .NET 8.0.
✦ Preferred Qualifications:
– Cross-platform desktop development experience.
– Knowledge of C++ Win32 internals or low-level OS automation.
– Strong understanding of multi-module desktop architectures.
Location: Remote
Contact:@Foreverinlovewithsummer
✦ Please forward the job posting when applying.
🫡 ✦ @HOLDER_JOB_DEVS
Salary: $3,000–$5,000/month
#Rust #CSharp #React #Windows #DesktopApps #Remote #Middle #Senior
Company:
A product-focused engineering team developing a native Windows desktop application with a multi-module architecture: Rust broker, WinUI overlay, and a cross-platform Tauri/React interface.
✦ Job Denoscription:
We’re seeking a Windows App Developer who feels confident working at the intersection of Rust, C#, and React. You’ll build low-level system modules, Windows overlays, and cross-platform UI components within a modern Tauri-based architecture.
Key Responsibilities:
– Develop and maintain the Rust-based Windows broker (FFI, Windows API automation).
– Build WinUI 3 overlays in C#/.NET for transparent, always-on-top windows.
– Implement UI components in React/TypeScript for Tauri pages.
– Integrate modules through Tauri commands, IPC, and HTTP APIs.
– Ensure performance, stability, and seamless communication across all layers.
✦ Qualifications:
– Intermediate/advanced Rust (Windows API, FFI, tokio).
– Strong C#/.NET experience with WinUI 3 and Windows desktop development.
– Solid TypeScript/React skills (Hooks, modular components).
– Familiarity with Tauri 2.0 (commands, IPC).
– Experience working with Windows SDK, Rust toolchain, Node.js, and .NET 8.0.
✦ Preferred Qualifications:
– Cross-platform desktop development experience.
– Knowledge of C++ Win32 internals or low-level OS automation.
– Strong understanding of multi-module desktop architectures.
Location: Remote
Contact:
✦ Please forward the job posting when applying.
🫡 ✦ @HOLDER_JOB_DEVS
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