Blockchain Developer Job Description Template

Blockchain Developer Location: [City, State / Remote / Hybrid] Department: Engineering Reports to: Engineering Manager / Head of Protocol Salary range: $[XX,000] – $[XX,000] + [token compensation / equity] About [Company] [Company] is building [brief product description — e.g., a decentralized lending protocol / an NFT marketplace / an enterprise supply chain platform] on [blockchain platform]. Our mission is [mission statement]. Role overview As a Blockchain Developer at [Company], you will be responsible for designing, building, and maintaining [smart contracts / protocol components / DApp integrations] on [Ethereum / EVM-compatible chain / Solana / Hyperledger]. You will work on code that handles real value — security, correctness, and gas efficiency are non-negotiable. Responsibilities • Design, develop, test, and deploy smart contracts in [Solidity / Rust / Go] following established security patterns (OpenZeppelin standards, checks-effects-interactions, reentrancy guards) • Participate in and support formal security audits — prepare audit documentation, respond to findings, and implement remediations • Optimize smart contracts for gas efficiency without sacrificing security or readability • Build and maintain integration tests and invariant tests using [Hardhat / Foundry / Anchor] • Develop and maintain [front-end DApp integrations / subgraph indexers / backend oracle services] that interact with on-chain contracts • Document contract interfaces, upgrade patterns, and protocol architecture for internal teams and the community • Monitor on-chain activity for anomalies, track protocol health metrics, and respond to incidents • Stay current with EIP proposals, protocol upgrades, and emerging security vulnerabilities relevant to [your ecosystem] • [If applicable] Contribute to governance mechanisms, tokenomics design, or cross-chain bridge development Qualifications • 3+ years of professional software development experience, with at least 2 years focused on blockchain/smart contract development • Strong proficiency in [Solidity (EVM) / Rust + Anchor (Solana) / Go (Hyperledger)] — demonstrated by deployed contracts, open-source contributions, or a portfolio of audited code • Deep understanding of EVM architecture (or equivalent VM) — execution model, storage layout, opcodes, delegatecall patterns • Experience with smart contract security — familiar with common vulnerability classes (reentrancy, flash loan attacks, oracle manipulation, access control failures) and mitigation patterns • Proficiency with testing frameworks: [Foundry / Hardhat / Mocha + Chai] • Solid understanding of cryptographic primitives relevant to blockchain systems (hash functions, digital signatures, Merkle proofs, ZKP concepts) • Experience with blockchain data tools: [The Graph / Dune Analytics / Etherscan API] Nice to have • Experience with formal verification tools (Certora Prover, Echidna, Halmos) • Cross-chain bridge or messaging protocol experience (LayerZero, Wormhole, CCIP) • ZK/zkEVM development experience (Circom, Noir, SP1) • Previous protocol audit participation or CTF competition results (Ethernaut, Damn Vulnerable DeFi) • [Enterprise-specific: Hyperledger Fabric chaincode development, permissioned network configuration] What we offer • Competitive salary: $[XX,000] – $[XX,000] • [Token allocation / equity grant] • [Health / dental / vision insurance] • [Remote / flexible work policy] • Formal security audit budget (code you write gets audited before deployment) • [Conference budget: DevConnect, ETHGlobal, Consensus] How to apply Submit your application at [link] with your resume and links to any deployed contracts, audited code, or open-source contributions. We review code quality and security awareness as primary hiring signals.