| Job Position | Company | Posted | Location | Salary | Tags |
|---|---|---|---|---|---|
Bondex | Remote |
| |||
bondex | Remote | $80k - $120k | |||
Bondex | United States | $62k - $77k | |||
Bondex | United States | $90k - $148k | |||
| Learn job-ready web3 skills on your schedule with 1-on-1 support & get a job, or your money back. | | by Metana Bootcamp Info | |||
Bondex | United States | $39k - $45k | |||
Bondex | United States | $76k - $150k | |||
Bondex | United States | $54k - $107k |
Overview
We're seeking a Senior Blockchain Developer to lead the technical implementation of cutting-edge Web3 integrations across multiple blockchain ecosystems. You'll be responsible for architecting and developing complex integrations with DID providers, Layer 2 solutions, educational platforms, and DeFi protocols while building scalable on-chain identity and reputation systems.
This role is perfect for an experienced blockchain developer who thrives on solving complex multi-chain challenges, implementing innovative Web3 protocols, and driving the future of decentralized professional networking.
Candidate requirements
- 4+ years of blockchain development experience with production deployments
- Strong Solidity development skills with experience in complex smart contract architecture
- Multi-chain development experience (Ethereum, Base, Solana, Polygon)
- Deep understanding of EVM and blockchain fundamentals
- Experience with Layer 2 solutions (Optimism, Arbitrum, Base)
- Advanced knowledge of smart contract security best practices and audit processes
- Experience with OpenZeppelin contracts and established patterns
- Proficiency in testing frameworks (Hardhat, Foundry, Truffle)
- Understanding of gas optimization techniques and contract upgradeability
- Experience with multi-signature wallets and timelock mechanisms
- Extensive experience with Web3.js/Ethers.js and blockchain API integration
- Wallet integration expertise (MetaMask, WalletConnect, Phantom, Rainbow)
- Experience with IPFS/Arweave for decentralized storage
- Knowledge of GraphQL for blockchain data querying (The Graph Protocol)
- RESTful API development for Web3 applications
- Understanding of DeFi protocols (Uniswap, Aave, Compound)
- Experience with token standards (ERC-20, ERC-721, ERC-1155, SPL tokens)
- Understanding of tokenomics and mechanism design
- Experience with stablecoin integration and payment rails
Desirable
- Experience with zero-knowledge proofs (zk-SNARKs, zk-STARKs)
- Knowledge of account abstraction (ERC-4337) and gasless transactions
- Familiarity with MEV protection and transaction optimization
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Job responsibilities
- Design and develop smart contracts for identity verification, attestation systems, and reputation scoring
- Implement cross-chain bridges and multi-chain wallet integration
- Build escrow systems and payment processing for freelancer marketplace
- Develop tokenized bounty and referral systems with automated distributions
- Integrate with Base L2, Solana, and other blockchain networks
- Implement Layer 2 scaling solutions and optimize gas costs
- Build cross-chain attestation services and reputation portability
- Develop multi-signature wallet systems and account abstraction
- Implement zero-knowledge proof verification systems
- Build privacy-preserving authentication mechanisms
- Develop on-chain credential verification and attestation systems
- Integrate stablecoin payment systems (USD1, USDC, etc.)
- Implement yield farming and staking mechanisms
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