Proficiency in Solidity for Ethereum smart contract development.
Experience with other blockchain platforms (e.g., Binance Smart Chain, Polkadot, Solana, Cosmos, or Layer 2 solutions like Polygon/zkSync).
Familiarity with Rust, Go, or C++ for non-EVM chains (e.g., Solana, NEAR, or Polkadot).
Knowledge of decentralized storage systems (IPFS, Filecoin, Arweave).
Strong experience with backend languages/frameworks (e.g., Node.js, Python, Java, or Ruby).
Expertise in building RESTful/gRPC APIs and integrating with blockchain networks.
Familiarity with database systems (SQL, NoSQL) and decentralized databases (e.g., OrbitDB).
Web3 Tools & Libraries
- Hands-on experience with Web3.js, Ethers.js, Hardhat, Truffle, or Foundry.
- Knowledge of The Graph for indexing blockchain data.
- Experience with oracle solutions (Chainlink, Band Protocol).
DevOps & Infrastructure
- Proficiency with Docker, Kubernetes, and CI/CD pipelines.
- Experience deploying nodes (e.g., Ethereum, Bitcoin, or others) and managing blockchain infrastructure.
- Familiarity with cloud platforms (AWS, GCP, Azure) and decentralized cloud services (e.g., Fleek, Akash).
Security
- Understanding of smart contract security best practices (e.g., reentrancy, overflow/underflow).
- Experience with auditing tools like Slither, MythX, or CertiK.
Education & Experience
- Bachelor's degree in Computer Science, Engineering, or a related field (or equivalent practical experience).
- 3+ years of backend development experience, with 1+ years focused on Web3/blockchain projects.
- Portfolio of deployed smart contracts or contributions to open-source Web3 projects (provide GitHub/GitLab links).
Soft Skills
- Strong problem-solving skills and adaptability to rapidly evolving technologies.
- Passion for blockchain, decentralization, and the future of Web3.
- Excellent communication skills for collaborating with frontend developers, designers, and stakeholders.
Nice-to-Have
- Experience with DeFi protocols, NFTs, DAOs, or tokenomics design.
- Knowledge of zero-knowledge proofs (zk-SNARKs, zk-STARKs) or Layer 2 scaling solutions.
- Contributions to blockchain communities (e.g., Ethereum Improvement Proposals, governance participation).
- Certifications like Certified Blockchain Developer (CBD) or Blockchain Security certifications.