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Blockchain Developer

Published 4 weeks Ago
Featured Job
Santa Barbara, California, United States
Full-Time Job View: 52 Job Apply: 1
  • Salary Range
    100,000 - 150,000 $ Per Year
  • Career Level
    Experienced (Non-Manager)
  • Category
    Computer/IT
  • Experience
    5 Years
  • No of Jobs
    2
  • Apply Before
    03/19/2025

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.

 

Job Info

Department: 
Status:  Interviewing
Duration:  3 Month
Experience:  5 Years
Career Level:  Experienced (Non-Manager)
No of Jobs:  2
Apply Before:  03/19/2025
Posted:  02/17/2025

Job Location

Santa Barbara, California, United States
Apply Now
Application Ends In 03/19/2025

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