Tech Lead — Gaming Projects (Telegram / Unity / Web3)
$2000 - $4000 USD per month

#вакансия #TechLead #GameDev #Telegram #Unity #Web3 #NFT #Remote #Parttime #Fulltime


✦ Job Denoscription:
We're looking for a Tech Lead to guide the development of cross-platform games (Telegram Mini Apps, Unity, Web3). This role involves architectural planning, team leadership, and involvement in game design and development processes. Flexible workload: part-time (10–20 hrs/week) or full-time.

Key Responsibilities:
– Define technical architecture and vision
– Lead backend, frontend, and Unity teams
– Choose tech stack, CI/CD, conduct code reviews
– Contribute to game design, hiring, and team processes

✦ Qualifications:
– Proven Tech Lead experience in gaming or Web3 projects
– Strong architectural thinking and team management skills
– Understanding of client-server architecture, NFTs, and wallet authentication

✦ Preferred Qualifications:
– Experience with games from scratch
– Minimal bureaucracy, full tech-stack influence
– Growth path toward CTO

Location: Remote

Contact: @Alexey_z_z
✦ Please forward the job posting when applying.
✦ @HOLDER_JOB_DEVS

Middle DevOps Engineer
$2000 - $2500 USDT per month

#devops #remote

Company: Western Web Company (Private)

✦ Job Denoscription:
We’re building a niche messenger with a strong client base and are looking for a DevOps Engineer to join our growing team. If you're full of energy, eager to grow, and ready to work hands-on — this is the right place. We’re not enterprise — we’re a post-startup with funding but still in the process of building structure.

Key Responsibilities:
– Maintain and scale Kubernetes in bare-metal production environments
– Work with physical servers (no cloud)
– Collaborate closely with the dev team on deployment and ops
– Contribute to setting up stable infrastructure with startup flexibility

✦ Qualifications:
– Hands-on DevOps experience (preferably outside rigid enterprise setups)
– Experience with Kubernetes in bare-metal setups
– Solid understanding of infrastructure and Linux systems
– English: B1–B2+ level

✦ Preferred Qualifications:
– Startup experience or readiness to thrive in unstructured environments
– Willingness to relocate or already outside of Russia
– Comfortable with crypto payments and legalization through foreign sole proprietorship (IP)

Location: Remote

Contact: @tata_hr
✦ Please forward the job posting when applying.

✦ @HOLDER_JOB_DEVS

Senior / Tech Lead TypeScript/Node.js Backend Developer (Solana)
$5000 – $7000 USD per month

#nodejs #typenoscript #solana #remote

Company: CreateIT (recruitment agency)

✦ Job Denoscription:
An international product team is building a next-gen mobile platform for social and copy trading on Solana. We’re looking for a Senior Backend Developer or Tech Lead to design and build scalable backend services for real-time trade copying, wallet interactions, and blockchain integrations.

Key Responsibilities:
– Design backend architecture for Solana operations
– Integrate with Solana RPC/WebSocket providers (Helius, QuickNode, Triton)
– Connect trading APIs/SDKs (Pump.fun, Birdeye, Jupiter, Serum)
– Implement wallet, transaction, order, and swap functionality
– Collaborate with a Python backend via gRPC/REST
– Set up monitoring, logging, and alerting
– Lead a small team (code reviews, mentoring, task planning)

✦ Qualifications:
– 3+ years in TypeScript / Node.js backend development
– Deep understanding of Solana blockchain (transactions, tokens, mempool)
– Experience with APIs like Helius, Pump.fun, Birdeye, Jupiter
– Knowledge of high-load and real-time system architecture
– Hands-on with wallet integrations and SPL token logic
– Commercial experience in trading platforms or bots
– Tech leadership or prior Tech Lead experience

✦ Preferred Qualifications:
– Rust experience on Solana
– Python knowledge and integration skills

Location: Remote

Contact: @itmari
✦ Please forward the job posting when applying.

✦ @HOLDER_JOB_DEVS

Blockchain Developer
$8700 – $9700 USD per month

#fulltime #remote #blockchaindev #developer #crypto #blockchain

Company: Interop Labs

✦ Job Denoscription:
Interop Labs is hiring a Blockchain Developer to build and optimize smart contracts and DApps across multiple chains. You’ll work on integrating blockchain tech into business processes, designing secure architecture, and ensuring top-tier performance.

Key Responsibilities:
– Develop and maintain smart contracts and DApps
– Integrate blockchain into existing business systems
– Contribute to system architecture design
– Optimize solutions for performance and security

✦ Qualifications:
– Experience with Ethereum, BSC, Polkadot, or similar platforms
– Proficient in Solidity, Rust, Go, or similar blockchain languages
– Skilled in smart contract and DApp development tools
– Strong grasp of cryptography and data security
– Effective team communication and problem-solving skills
– Ability to work independently on complex tasks

✦ Preferred Qualifications:
– Proven track record in multi-chain environments
– Passion for decentralized technologies

Location: Remote

✦ Please forward the job posting when applying.

Contact: @dmit_var

✦ @HOLDER_JOB_DEVS

Solana Rust Developer
$4000-$7000/month + team profit bonuses

#Developer #Solana #Rust #Crypto #Blockchain #Fulltime #Remote

Company: BlockSniper

✦ Job Denoscription:
BlockSniper is a high-frequency crypto trading startup building ultra-fast trading bots and DEX strategies on Solana. We’re hiring a Solana Rust Developer to work on low-latency, infrastructure-level tasks where every millisecond counts.

Key Responsibilities:
– Develop high-performance Solana-based trading systems
– Optimize code for speed and low latency
– Work with Solana RPC, Anchor, CLI, and deployment flows
– Manage infrastructure: validator setup, node maintenance, network reliability
– Contribute to engineering solutions focused on performance

✦ Qualifications:
– 3+ years in Rust, with hands-on Solana experience
– Deep understanding of PoS, RPC, and DApps
– Background in high-load systems (HFT, bots, or trading preferred)
– Infrastructure-level experience: nodes, validators, custom networks
– Bonus: experience with machine learning

✦ What We Offer:
– Competitive salary + revenue share
– Fully remote
– Paid vacation and sick leave
– Growth-focused culture with flexible benefits

Location: Remote

Contact: @rita_dereviakina
✦ Please forward the job posting when applying.

✦ @HOLDER_JOB_DEVS

Frontend Senior/Lead Developer
$6,000 – $15,000 USD/month (paid in USDC on Solana, before tax)

#Vacancy #ReactJS #JavaScript #TypeScript #NextJS #Solana #Blockchain #Web3JS #Algorithms #Mathematics #FrontendDevelopment #Remote

Company: DefiTuna

✦ Job Denoscription:
DefiTuna is a fast-growing Solana-based DeFi protocol focused on lending and leveraged farming. With $10M+ TVL growth in a month and thousands of daily transactions, we are scaling our team to meet rising demand. We’re hiring a Frontend Senior/Lead Developer to lead UI efforts and deliver advanced features during this critical growth phase.

Key Responsibilities:
– Lead and mentor a team of frontend engineers
– Collaborate with CTO, CEO, and designers to shape product direction
– Build and optimize user-facing features
– Ensure high-performance, scalable, and testable frontend code

✦ Qualifications:
– 8+ years of experience in frontend or fullstack roles
– Strong knowledge of JavaScript/TypeScript, React, and Next.js (or similar)
– Proven experience with complex, commercial projects (with links)
– Solid foundation in mathematics, algorithms, and computer science
– Experience with testing (unit, integration, E2E)
– Familiarity with CI tools (GitHub Actions, CircleCI, etc.)
– Comfortable with Git and backend architecture
– Exposure to low-level languages (C/C++ or Rust)

Location: Remote

Contact: @dorotisis

Please support your resume with links to significant projects in which you played an active role.

✦ Please forward the job posting when applying.

✦ @HOLDER_JOB_DEVS

Senior Frontend Developer (Web3)
$4000 – $6000 USD/month (net)

#remote #react #web3 #front

Company: NDA

✦ Job Denoscription:
A Web3 project is seeking a Senior Frontend Developer passionate about building high-performance web applications and games using React, Next.js, and LLM-based development tools. This role includes using modern SDKs to accelerate prototyping and development cycles in a fast-paced environment.

Key Responsibilities:
– Develop and maintain advanced web apps and games with React and Next.js
– Leverage LLMs and SDKs (e.g., Cursor) for prototyping and code generation
– Build and integrate WebSocket connections for real-time interactivity

✦ Qualifications:
– 4+ years of experience with React and Next.js
– Deep understanding of hooks, context API, SSR, SSG, and performance patterns
– Practical experience with WebSockets and related protocols
– Hands-on use of LLMs and codegen SDKs in development workflows

✦ Preferred Qualifications:
– Experience building Web3 apps (dApps)

Location: Remote

Contact: @alinasidrr
✦ Please forward the job posting when applying.
✦ @HOLDER_JOB_DEVS

Lead DevOps Engineer
$7,000 – $12,000 USD/month (final offer based on experience and expertise)

#vacancy #DevOps #AWS #Terraform #GitLab #CI_CD #Dubai #Fulltime

Company: CheckoutRails

✦ Job Denoscription:
CheckoutRails is building a next-gen billing and payments infrastructure. We are hiring a Lead DevOps Engineer to take full ownership of our cloud infrastructure, enabling scalable, secure, and high-performing systems. You will lead the DevOps function, drive automation, and align DevOps strategy with business goals.

Key Responsibilities:
– Design and manage secure, scalable AWS infrastructure
– Lead and mentor the DevOps team
– Implement and optimize GitLab CI/CD pipelines
– Build monitoring and alerting systems
– Automate infrastructure using Terraform
– Ensure security, reliability, and smooth deployments
– Collaborate across engineering and product teams

✦ Qualifications:
– Proven experience in DevOps/Infrastructure roles
– Deep knowledge of AWS (ECS, RDS, CloudWatch, SQS, etc.)
– Proficient with GitLab CI/CD and Terraform
– Skilled in observability, vulnerability management, and documentation
– Leadership and mentoring experience
– Strong analytical and troubleshooting skills

✦ Preferred Qualifications:
– Familiarity with PHP/Symfony stack
– Experience with JumpCloud, Sentry, Grafana, Metabase

Location: Dubai (relocation package available)

Contact: @checkoutrails
✦ Please forward the job posting when applying.

✦ @HOLDER_JOB_DEVS

Tech Lead (Card Issuing, PSP)
$6500 USD/month

#Vacancy #TechLead #CardIssuing #Fintech #HighRisk #RemoteJob #GoLang #PHP #API #EngineeringLeadership #Hiring

Company: quicko.pl/

✦ Job Denoscription:
A licensed card issuer is launching a new division focused on virtual banking cards. We're building an API-first B2B platform for issuing and managing cards. As Tech Lead, you'll define architecture, drive backend/API development, and lead an outsourced engineering team.

Key Responsibilities:
– Define system architecture and API design
– Select tools and approaches for backend stack
– Decompose business needs into technical tasks
– Lead backend/API development and partner integrations
– Conduct code reviews and mentor the team
– Manage deliverables from an outsourced dev team
– Collaborate with Product Manager on sprint planning
– Contribute to infrastructure and system scalability

✦ Qualifications:
– 5+ years in backend development (PHP + Go)
– 1+ year of experience in card issuing (EU/WW)
– Team leadership experience
– Deep knowledge of DDD, Clean Architecture, Hexagonal/Onion patterns
– Experience with async processing, HA design, monolith/microservices
– Solid understanding of OWASP security standards
– Stack: Docker, Kubernetes, Kafka, Redis, PostgreSQL, gRPC, Grafana, Laravel Octane, ELK/Loki
– Tools: Jira, Confluence, Slack
– Languages: Fluent English + Native Russian

✦ Preferred Qualifications:
– Experience with WireGuard, Firezone, Prometheus, Sentry, Jaeger

Location: Remote (timezone: Warsaw-aligned)

Contact: @Anna2727_ITHR
✦ Please forward the job posting when applying.
✦ @HOLDER_JOB_DEVS

Hiring Now:
Senior Golang Backend Developer
~$4,000 – $5,000 net

#vacancy #job #golang #gin #echo #fiber #kafka #rabbitmq #elk #jaeger #openapi #highload #remote

Company: SteelMount (early-stage startup)

✦ Job Denoscription:
SteelMount is developing a digital marketplace for purchasing games, in-game currencies, and topping up balances on global services. Backed by solid investment, the company is growing its core team and is now looking for a Senior Golang Developer with deep experience in anti-fraud systems (custom CAPTCHA, anti-bot mechanics, Proof-of-Work). You'll join a small expert team focused on building secure, high-load infrastructure.

Key Responsibilities:
– Design and develop backend services in Go
– Implement anti-fraud mechanisms and analyze bot attacks
– Work with REST/gRPC APIs, custom captchas, and distributed systems
– Optimize high-load infrastructure for security and performance
– Integrate with messaging queues and databases
– Participate in architectural decisions and code reviews

✦ Qualifications:
– 3+ years in backend development with Go
– Deep knowledge of goroutines, channels, context, memory management
– Strong understanding of Clean Architecture, DDD, SOLID, Hexagonal patterns
– Experience with:
• Web: net/http, Gin, Echo, Fiber
• Protocols: REST, gRPC (protobuf), WebSockets
• DBs: PostgreSQL, MySQL, Redis, MongoDB, ClickHouse
• Queues: Kafka, RabbitMQ, NATS
• Tools: go test, go vet, golangci-lint, pprof, Swagger/OpenAPI
• Logging/Tracing: ELK, Loki, Jaeger

✦ Preferred Qualifications:
– Experience with custom captcha systems and anti-bot engineering
– Ability to analyze and counter complex fraud tactics

Location: Remote (any timezone; prefer overlap with Moscow time)

Contact: @leonety_lety

Please forward the job posting when applying.

✦ @HOLDER_JOB_DEVS

Backend Developer (Python/Go)
$3000-$4000

#vacancy #backend #python #golang #grpc #postgresql #docker #remote #highload

Company: BSL

✦ Job Denoscription:
BSL is hiring a middle+/senior backend developer to build high-load services and internal systems for major Russian pharmacy chains. You’ll work on greenfield backend projects, system integrations, and performance optimization.

Key Responsibilities:
– Develop and maintain backend services from scratch
– Integrate with external systems
– Optimize application and DB performance

✦ Qualifications:
– Strong knowledge of Python and Go
– Experience with REST/gRPC APIs
– Proficiency with PostgreSQL, Redis
– Confident in Docker, Docker Compose, Linux
– Understanding of Clean Architecture and microservices
– Familiarity with testing (unit, integration)

✦ Preferred Qualifications:
– Experience with Kubernetes
– Kafka or RabbitMQ
– DB performance tuning
– CI/CD (GitLab CI, GitHub Actions)

Location: Remote

Contact: @whereisvera

✦ Please forward the job posting when applying.

✦ @HOLDER_JOB_DEVS

Lead Backend Developer (Go + TypeScript)
$4,500 – $5,000/month

#vacancy #Lead #Backend #Go #TypeScript #iGaming #remote #fulltime

✦ Job Denoscription:
An expanding iGaming team is looking for a talented Lead Backend Developer skilled in Go and TypeScript. You will drive the development of new features, optimize algorithms, and manage a backend team working with high data volumes. The role provides freedom to influence both technology and company strategy.

Key Responsibilities:
– Write and optimize backend algorithms
– Lead and mentor a backend development team
– Build and enhance new product features
– Work with high-load systems and large data sets

✦ Qualifications:
– 3+ years of commercial Go experience
– Solid background in Node.js and TypeScript (event loop, typing, async code)
– Hands-on experience with Redis, ClickHouse, Kafka
– Proven leadership and team management experience

✦ Preferred Qualifications:
– Knowledge of Go fundamentals: goroutines, channels, sync package, OOP
– Ability to work effectively with existing codebases

Location: Remote, full-time (flexible 5/2 schedule)

Contact: @medwed_darya

✦ Please forward the job posting when applying.

✦ @HOLDER_JOB_DEVS

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

✦ Please forward the job posting when applying.

✦ @HOLDER_JOB_DEVS

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

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

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

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

✦ Please forward the job posting when applying.

✦ @HOLDER_JOB_DEVS

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

✦ Please forward the job posting when applying.

@HOLDER_JOB_DEVS

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

✦ Please forward the job posting when applying.

@HOLDER_JOB_DEVS

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
🔵Please forward the job posting when applying.

✦ @HOLDER_JOB_DEVS

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