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Application deadline: 6 days

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Mid / Senior Smart Contract Engineer

LI.FI • FULL_TIME • NA

Job description

LI.FI builds infrastructure that enables unified access to on-chain liquidity across multiple blockchains through a single API, supporting same-chain and cross-chain swaps. This role sits within the Smart Contract API Expansion team, which focuses on integrating new chains, bridges, and protocol functionality across EVM networks. As a Mid/Senior Smart Contract...

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Difficulty - Medium

Total Plays - 28

Allowed Time - 10 sec

Best time - 0.936 sec

What is sharding in blockchains?

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Explanation:
Sharding is a blockchain scalability technique that divides the entire network’s data into smaller, manageable pieces called shards. Each shard processes its own transactions and smart contracts, improving network speed, performance, and efficiency. This concept is key for scalable blockchain infrastructure like Ethereum 2.0 and future Web3 ecosystems.

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Victor P

@TrG6JIR • 3mos

Transitioning from Web2 Backend Developer to Smart Contract Engineer: Where Should I Start?

After four years building scalable APIs, I feel ready to move into blockchain development — but it’s intimidating. In Web2, we “move fast and fix later.” In Web3, one careless...

1

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Alex Chen

@AlexC • 1mo

As a blockchain QA, how do you report critical bugs without damaging your relationship with developers?

I work as a QA in a blockchain project, and I’m struggling with how to report critical bugs without creating friction with developers.In Web3, even small issues can have serious...

4

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Shubhada Pande

@ShubhadaJP • 1mo

Proof-Based Hiring in Web3 Hub (Hiring Signals, JD Proof Lines, Shortlist Loops)

3

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Shubhada Pande

@ShubhadaJP • 1w

Interview Smart Contract Engineers: Evaluate Real Solidity Skill

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Application deadline: 2 weeks

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Blockchain Security Expert Intern – AI Track

CertiK • FULL_TIME • NA

Job description

This internship role focuses on building AI-driven capabilities for blockchain security auditing. The intern will work alongside CertiK’s blockchain security team to develop and integrate large language model (LLM)–based agents that analyze smart contracts and surface potential vulnerabilities. The position emphasizes applied research, experimentation, and translation of academic work into...

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amanda smith

@DecentralizedDev • 6d

NFT pivot after the hype: who should own “utility growth” now?

I’m consulting for an India-based NFT brand that minted during the 2022 wave. Back then it was loud — ~12K holders, collabs, Discord energy, the usual “we’re early” feeling.Now it’s...

5

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Shubhada Pande

@ShubhadaJP • 2w

Salary, Tokens & Compensation Hub

Compensation is one of the highest-intent topics in Web3 job search.This hub covers token offers, global salary negotiation, stablecoin payments, and real expectations around Web3 pay.Every section includes job-board CTAs...

3

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SheniGun

@bXUI62V • 1mo

Guidance on how to land a good job in web3

I started working as a Blockchain Developer in 2021 at a small service based indian startup. It was a remote job and I worked there for around 2.6 years. And...

1

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Shubhada Pande

@ShubhadaJP • 3mos

Community-Led Growth in Web3: Skills, Tools, and Proof Metrics Redefining Marketing Careers

Why Web2 Marketing Playbooks Fail in Web3 The marketing rulebook that worked for Web 2.0—funnels, paid ads, and top-down messaging—starts to crumble once ownership and on-chain proof enter the picture....

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Difficulty - Medium

Total Plays - 24

Allowed Time - 10 sec

Best time - 1.330 sec

What does MEV stand for in Ethereum?

Tip: Click "Play" to reveal options and start playing.

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Explanation:
MEV (Maximum Extractable Value) refers to profits gained by reordering or inserting transactions in a block. It’s a major focus in blockchain security and DeFi optimization, influencing how validators and searchers interact with the mempool.

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BlockchainMentorYagiz

@BlockchainMentor • 3mos

As a Blockchain QA Engineer, How Do You Deal With Flaky Smart-Contract Tests That Fail Only on CI?

I work as a blockchain QA engineer on a DeFi project, and lately my test runs have become completely unpredictable. They pass on my local machine, fail on CI, and...

2

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Shubhada Pande

@ShubhadaJP • 3w

Smart Contract Interview Prep: Technical, Security, Debugging & Founder Rounds Explained

Smart contract interviews are not about reciting Solidity syntax or memorizing vulnerabilities.Strong candidates fail when they can’t explain how they think, can’t reason through trade-offs, or panic when pushed beyond...

5

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Sharan Onamshetty

@Sharan-Shetty • 3mos

Open to Blockchain Developer / Web3 Engineer Roles

Hey everyone 👋,I’m Sharan Onamshetty, a Blockchain Developer with hands-on experience in Solidity, Rust, and EVM-based smart contracts. I’m currently exploring full-time and remote opportunities where I can contribute to...

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