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Experience: 38 Years Location: Remote / On-site / Hybrid Employment Type: Full-time / Contract Job Description We are looking for a skilled Blockchain Developer to design, develop, and implement decentralized applications (dApps) and blockchain-based solutions. The role involves working with smart contracts, blockchain protocols, and integrating blockchain systems with existing applications. Key Responsibilities Design, develop, test, and deploy smart contracts Build and maintain decentralized applications (dApps) Integrate blockchain solutions with backend and frontend systems Work with public and private blockchains (Ethereum, Polygon, Hyperledger, Solana, etc.) Ensure security, scalability, and performance of blockchain applications Conduct smart contract audits and security reviews Optimize gas usage and transaction efficiency Collaborate with product, design, and engineering teams Stay updated with latest blockchain technologies and trends Required Skills & Qualifications Strong experience with blockchain development and architectures Proficiency in smart contract languages (Solidity, Rust, Vyper) Experience with Web3 frameworks and tools (Web3.js, Ethers.js, Hardhat, Truffle) Knowledge of cryptography, consensus mechanisms, and distributed systems Experience with REST APIs and backend integration Familiarity with wallets, tokens (ERC-20, ERC-721, ERC-1155), and DeFi concepts Strong problem-solving and debugging skills Preferred Qualifications Experience with Layer 2 solutions and scaling techniques Knowledge of NFT marketplaces, DeFi protocols, or DAOs Familiarity with security tools and smart contract auditing Bachelors or Masters degree in Computer Science or related field What We Offer Opportunity to work on cutting-edge blockchain projects Exposure to Web3, DeFi, NFTs, and decentralized ecosystems Competitive compensation and benefits High-impact role with ownership Innovative and collaborative work environment .
Here's where they are and how to stand out in your next interview.
24.795Jobs
9.577IN
74%EN
That number includes positions in India (9,577), Poland (3,429), the United States (1,753), Singapore (787), and Brazil (779). If you're looking to move or work remotely, check which countries match your goals — then filter WorkMundi by location to see what's actually hiring near you.
Most developer ads you'll see are written in English: 18,397 of the 24,795. That doesn't tell you whether the job itself requires you to speak English or work in English daily, so read each posting carefully. Don't assume the language of the ad matches the language of the team.
The employers posting the most developer roles are Link Group (369 jobs), Upvanta (257), jobgether (226), and OfferZen (212). If you're applying to any of these, research their hiring patterns. They move fast and post often, which means they're either scaling hard or replacing people who didn't fit.
In your interview, expect this: 'Walk me through the last time you had to debug something that took you more than an hour. What was it, what did you try first, and what would you do differently?' Hiring managers ask this to see if you think systematically or just try random fixes. Have a real example ready with specifics.
