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Salary Range100,000 - 150,000 $ Per Year
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Career LevelExperienced (Non-Manager)
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CategoryComputer/IT
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Experience5 Years
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No of Jobs2
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Apply Before03/19/2025
Description
Job Title: Blockchain Engineer (Ethereum & Wallet Development) Location: Remote / Hybrid / On-Site Employment Type: Full-Time / Contract
Token Compensation: $JOBHOP (Optional)
About Us
CryptoJobHopper is a cutting-edge Web3 job marketplace that connects top-tier blockchain talent with leading employers in the crypto, DeFi, and digital asset industries. We are seeking a highly skilled Blockchain Engineer with expertise in the Ethereum protocol and wallet development to join our team and help build decentralized applications, smart contracts, and secure wallet solutions.
Key Responsibilities
• Design, develop, and deploy smart contracts on the Ethereum blockchain using Solidity.
• Build and optimize Ethereum-based wallets with multi-signature and smart contract functionality.
• Integrate Ethereum Layer 2 solutions (Optimism, Arbitrum, zk-Rollups) for scalability.
• Implement secure private key management and wallet authentication (MPC, EIP-4337, etc.).
• Collaborate with front-end and backend teams to integrate blockchain features into Web3 applications.
• Conduct security audits and vulnerability assessments on smart contracts and wallet applications.
• Stay up to date with Ethereum protocol upgrades, ERC standards, and DeFi innovations.
• Optimize gas fees and transaction performance for Ethereum-based applications.
Requirements
✅ 3+ years of experience in blockchain development with a focus on Ethereum.
✅ Strong proficiency in Solidity, Web3.js, ethers.js, and Smart Contract security best practices.
✅ Experience developing non-custodial wallets, dApps, and DeFi protocols.
✅ Knowledge of Ethereum Virtual Machine (EVM), token standards (ERC-20, ERC-721, ERC-1155), and Layer 2 scaling solutions.
✅ Hands-on experience with wallet authentication mechanisms, seed phrase encryption, and transaction signing.
✅ Familiarity with DeFi protocols (Uniswap, Aave, MakerDAO, etc.) and Ethereum governance models.
✅ Experience using Hardhat, Truffle, OpenZeppelin, and Chainlink oracles.
✅ Understanding of gas optimization techniques and smart contract performance tuning.
✅ Strong knowledge of blockchain security threats (reentrancy, flash loans, MEV, etc.).
✅ Familiarity with Rust, Go, or C++ (bonus if you have experience with cross-chain development).
Nice to Have
• Experience with Solana, Polkadot, or Cosmos ecosystems.
• Prior contributions to Ethereum Improvement Proposals (EIPs) or open-source blockchain projects.
• Knowledge of zero-knowledge proofs (zk-SNARKs, zk-STARKs) and privacy-focused protocols.
• Background in staking mechanisms, DAO governance, and tokenomics.
• Experience with AI-driven smart contract automation.
Benefits
✅ Competitive salary + token incentives ($JOBHOP).
✅ Remote-friendly work environment.
✅ Opportunity to work on innovative Web3 projects.
✅ Continuous learning opportunities in blockchain and DeFi.
✅ Access to top-tier blockchain conferences and hackathons.
