🦊 Reasons to move into Web 3 Development

💸 High compensation: In the dev community, blockchain is considered to be a highly monetary niche. This is confirmed by statistics: the average salary of a middle developer on blockchain projects is 11% higher than programmers in the market, senor - by almost 15%. And salaries at major cryptocurrency exchanges and blockchain companies are as high as in FAANGs

👨‍💻 Simple requalification: This is where it's important to understand what Web3 is all about. It's not just working with blockchains and smart contracts. In any Web3 application, there is also front-end and back-end where specific languages are not required. It is important to understand the blockchain architecture and how to interact with it, what smart contracts are and their interaction

💻 Frontend in Web 3.0: From a technical side, there is not a big difference between front-end code for Web2 and Web3. The difference is in how Web 2 and Web 3 applications handle data - the handling of data mutation changes. Whereas Web 2 simply sends requests from the user to the backend, Web 3 data mutation needs to send a transaction with a smart contract call to the blockchain

❔How to safely explore the realm of Blockchain

Let's learn the basics of crypto security for those who are just moving into web3:

🗝 The first and foremost rule is never share your seed phrases. Knowing the seed literally allows an attacker to take control of your money.

🔐 Two-factor authentication - an extra layer of protection is certainly a good one to have.

💰 Diversification - the main fault of inexperienced enthusiasts and dreamers is to invest heavily in a certain project. You need to invest in multiple assets to reduce the risks of burnout.

📚 Education - crypto is one of the fastest changing fields atm, to be a guru in blockchain you need to be up to date daily and constantly learning. Check smart contracts, study tokenomics projects, read current news, etc.

🌚 And of course, keep an eye on Top Selection so you don't miss the next portions of useful content from the world of mysterious Web3

🥈 Web 3.0 is an emerging and very dynamic field, but it may also be more challenging for developers because of the novelty and specificity of blockchain technologies

📝 The relatively short history of Web 3 development can involve challenges for developers who are looking to move from Web 2 to Blockchain development, especially in the early stages of the interview round

❔How to prepare for interviews for companies like Binance, Polygon, 1inch, etc.? What questions to expect and how to answer them accurately in order to be selected?

Top Selection team along with top developers and recruiters from partner crypto projects will help you to prepare for the interview and make onboarding with the help of test and mock interviews. Currently we are presenting 3 main types of interview preparation for those who want to get a job in the Web 3 👇

🔹 Technical Interview Assessment

🔹 Technical Mock Interview (Q&A)

🔹 Technical Mock Coding Interview (Q&A + Live Coding)

👍 - Leave thumbs up and we will go into detail about each type of our unique product

Half a billion are on the way!

🔝The number of crypto users worldwide has reached 418 million people. This was reported by k33research portal

🇨🇳The largest number of crypto adopters reside in Asia - 262 million people or 63% of the total number of users

👥 Meanwhile, the crypto industry employs more than 187 thousand people, which exceeds the indicators of the largest technology companies Google, Apple and Facebook. The majority of hired employees are from Asia - 65.9K, another part (60.7K) is from North America, and the remaining third of employees are from European countries, South America and Africa.

What does this mean for the crypto industry?

🔸 418 million users is a growing figure that will reach a billion in a few years. This shows that mass adoption of crypto technology is approaching.
🔸 Most of the market is concentrated in Asia. Startups that want to attract users and generate revenue will enter the Asian market.
🔸 This large growth in users creates a need for specialists to deal with it, especially blockchain developers, as serving half a billion users is not an easy mission.

🐂 We see more and more people joining crypto, so the bearish mood is gradually changing into a positive side

📍 Top Sel Media | 💬 Discord — 💬Twitter

🔓 What is a Cryptocurrency Audit and why is it needed?

While cryptocurrencies offer a "new generation of payments" with fast transactions, low fees and increased privacy, its users face a record number of risks and issues

What is a crypto audit?

✒️ A cryptocurrency audit is a review of whether the technical metrics of a cryptocurrency match the company's claims and whether the coin is protected from hacker attacks. The purpose of the audit is to make sure that the cryptocurrency is free of bugs and critical vulnerabilities.

📄 Following the audit, the auditor issues a report that is useful to both the project issuing the cryptocurrency and to users or potential partners. Cryptocurrency developers can fix the vulnerabilities found by the auditor. And if there are none, the report will be a green flag for investors and customers who don't have to worry about the safety of their investments.

Why is an audit necessary?

✅ Firstly, it helps to identify projects aimed at making money fraudulently. Secondly, auditing can also help to identify technically weak coins that do not live up to their promises or have poor security. In both the first and the second case, audits reduce the risks of investing in cryptocurrencies.

Cost of auditing

ℹ️The cost of auditors varies depending on the size and complexity of the task. The owners of a large crypto exchange will have to pay several times more than the founders of a small startup. The point here is not the number of users, but the length of the code to be audited.

💸 On average, an audit can cost from $5,000 to $50,000 - companies do not give exact figures without a preliminary analysis of a specific situation.

🧑‍💻Therefore top Auditors of smart contracts DeFi protocols like Hacken, CertiK and others are actively seeking blockchain specialists from simple testers to expert cybersecurity specialists

Future Trends in the Blockchain 📈

ℹ️ Blockchain developers, unlike their Web 2.0 folks, need to be always on the lookout for new knowledge and keep up to date with the latest market trends because blockchain is one of the fastest growing areas of all possible and new networks and blockchains, as well as related technologies and functionality, are constantly emerging in this market. To stay ahead of the competition or to be prepared for any unexpected questions in the interview, we have prepared a list of upcoming trends in the blockchain industry that may dominate in the near future

🔸SVM
Solana Virtual Machine (SVM) is attracting more and more attention from developers and has chances of widespread adoption. This is due to the experiments and innovations this technology can bring: new sequencers, new rollups, new applications and new liquidity.

🔸Modular vs Monolithic structures
This trend is also related to the adoption of SVM, which will be one way of modular innovation. Modular technologies allow for accelerated experimentation. For example, Solana is now modular at the technical and community level.

🔸Appchains
Blockchains created for specific applications will also attract the attention of users and developers. The main reason for creating appchains is sovereignty and the possibility of forks. This is the reason for the creation of the MakerDAO appchain.

🔥 - Leave reactions if you want a follow-up on industry trends

✒️ All you need to know about Technical Interview Assessment

If you are already decided to be one of the pioneers of mysterious blockchain technologies, find a dream job in mega Web3 projects or just want to make a lot of cash, this post is just for you

👩‍💻 A TopSel team led by the winners of the Binance hackathon and top-tier Web3 tech interview prep hub has prepared a unique assessment on real cases, based on the results of which you will have a complete roadmap and action plan

What's included in the package:

🔹 The test includes several targeted blocks such as: Blockchain fundamentals, EVM, Solidity, gas optimization and security
🔹 Questions with multiple choice answers as well as open-ended questions where you are required to solve specific technical problems
🔹 No rush, no stress, no time pressure, Simulation of a technical interview in a comfortable and developer friendly way
🔹 No boring and primitive questions, only real cases, only real questions from Web3 devs
🔹Bonus: a section on problem solving built from questions that were posed on real blockchain projects

What do you get out of it?

🔸 Your real level in the dev environment from junior to senior
🔸 Feedback report on your result showing your strengths and weaknesses.
🔸 Personalized action plan from real experts, no template actions

ℹ️If you still have questions, feel free to contact us @alexdevvv. We will be happy to help you!

🔝 All you need to know about Technical Mock Interview (Q&A)

In previous posts we went into detail about the

Technical Interview Assessment,

but if you want to go further and want to try a simulation of a Live Technical Mock Interview, our experts are ready to help you with that

📆 After payment you have the opportunity to choose a time that suits you and have a 60 minute interview with a Web3 expert on each of the sections: blockchain fundamentals, EVM, Solidity, gas optimisation and security.

🚀 Why should you get a Technical Mock Interview?

🔹 You get an initial feedback from the expert during the interview
🔹 A detailed performance report within a few days and recording for self-improvement
🔹 Practice frequent as well as uncomfortable questions, the opportunity to check your achievements and growth points including practising your English.
🔹 You don't need to prepare for anything, our team will take care of it.
🔹The opportunity to ask questions and get expert answers in real time

Stay tuned for more

🔝 Bitcoin's first obituary was released 13 years ago, since then the crypto asset has grown by 15,000,000%

📆 With the growth of bitcoin and other crypto assets over the past few months, we couldn't miss this date. 13 years ago, blogger Sean Lynch wrote about bitcoin's upcoming demise on a website that no longer exists

💡Notably, the author criticised bitcoin for its fixed supply and potential for price growth, pointing out that this would prevent it from becoming a currency and would eventually lead to depreciation

💬

"The only thing keeping bitcoin alive for so long is its novelty. Either it will always remain a novelty or it will die faster than you can blink," Lynch wrote 13 years ago

❓But the first cryptocurrency is still proving the opposite, ranking 12th in terms of capitalisation out of all the world's assets.

Do you think it will be able to reach the top?

👍 - Yes, it's only a matter of time

👎 - No, I don't believe it yet.

🔝 TopSelEdu: What are Layers in Blockchain?

ℹ️Recently, the crypto world has been buzzing more and more about layers, especially if you go into development, you have come across them several times. Let's discuss in detail the topic of levels of organisation of technologies and ideas in the crypto world:

1️⃣One of the simplest explanations about Layer 1 is offered by Binance Academy. In a nutshell, Layer 1 is

"a protocol that processes and completes transactions in its own blockchain. It also has its own token used to pay transaction fees"

L1 networks are ETH, BNB, SOL and others. So why then do we need second layers when we can get by with the first?

🤖The fact is that Layer 1 protocols don't scale well: too much data during transactions increases network runtime. This is because bitcoin, for example, uses the Proof of Work (PoW) consensus mechanism, which requires a lot of computing resources.

2️⃣Well, we've got the first layer sorted out, so let's continue analysing the blockchain. According to an article from Cointelegraph,

"The second layer is third-party integration used in conjunction with the first layer to increase the number of nodes and system capacity. That is, in order for the first layer network to scale, some operations are outsourced - L2 comes in. Moreover, there is even an L3 that acts as a "user interface while masking the technical aspects of the communication channel"

📍L2 solutions are divided into sidechain (returns transaction result to L1), plasma chain, rollups, state channels.

🚀Technologies to improve the agility and efficiency of blockchain networks are crucial today. Against the backdrop of the growing DeFi sphere and the popularity of crypto, it is becoming more and more important to have a stable system capable of running large financial sums through it without any failures or delays

Happy Sunday Guys🍹

🗞 It's been a week full of events and news in the world of crypto, we have followed all of them but have collected for you the most interesting and important ones:

▶️ 47 countries have adopted a new standard for exchange of information between tax authorities:

The list of countries includes the US

🇺🇸

, the UK

🇬🇧

and Australia

🇦🇺

. CARF aims to regulate crypto assets. Which means Cryptocurrency will be increasingly regulated over time.

▶️ The number of Bitcoin wallets worth more than $1 million has increased three times over:

💰

The number of such addresses has increased from 23,795 to 81,925 since the beginning of the year. Many of these addresses belong to crypto exchanges and financial institutions.

▶️ Cryptoassets are the second most popular type of investment in France:

🇫🇷

Almost 9.4% of the population holds crypto-assets and 2.8% own NFT. Among crypto investors, 64% are male with an average age of 36. But it is worth noting that most new investors have low levels of financial knowledge, the survey found.

▶️ Uniswap presented a mobile application for Android, available in Google Play:

📱

The iOS version was released in April. The application allows users to make exchanges directly in the application, eliminating the need to use additional web browser extensions.

▶️Due to ETF hype, average BTC transaction value increased by 735% in a month

What news of the week caught your attention❓

🔝 All you need to know about Technical Mock Coding Interview (Q&A + Live Coding)

📌

On our channel we have already gone through

Technical Interview Assessment

and

Technical Mock Interview

in details. Now it's time to talk about our latest and most advanced technical interview preparation package from Top Selection Web3

What you get from Technical Mock Coding Interview:

1️⃣ A Technical Mock Interview (check the link) combined with live coding.

2️⃣ Engage in problem-solving scenarios resembling those of a high-paid blockchain developer tackling tasks like gas optimisation and web3 security.

3️⃣ Personalised 1 on 1 session with a hardcore expert to get advice on how to succeed in your web3 career.

4️⃣ Personalised advice and guidance if you want to work for a specific crypto company.

Follow us on: ✖️ Twitter {X} ┃🎮 Discord ┃💼 LinkedIn