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Posted 21 days ago
Requirements and responsibilities
The Role:
- We are hiring a Senior Blockchain Developer to design and build smart contract systems across multiple client and internal projects.
- You will work on a variety of blockchain applications, from DeFi protocols to tokenized systems and Web3 platforms, ensuring high standards in security, scalability, and architecture.
- This is a senior-level, hands-on role with exposure to multiple products and industries.
What You'll Do:
- Design, develop, and deploy smart contracts using Solidity.
- Implement token standards (ERC-20, ERC-721, ERC-1155) and custom logic.
- Build and maintain contract architectures across multiple projects.
- Ensure security, audit readiness, and upgradeability.
- Optimize gas usage and performance.
- Collaborate with backend and frontend teams for integrations.
- Participate in code reviews and technical decision-making.
- Contribute to documentation and internal best practices.
What We're Looking For:
- 4+ years of experience in blockchain / smart contract development.
- Strong expertise in Solidity and EVM-based ecosystems.
- Experience with Ethereum and L2s (Polygon, Arbitrum, Optimism).
- Solid understanding of smart contract security and vulnerabilities.
- Experience with Hardhat, Foundry, or similar frameworks.
- Strong software engineering fundamentals (testing, Git, CI/CD).
- Ability to work across multiple projects and adapt quickly.
Nice to Have:
- Experience with DeFi protocols, staking, or token economies.
- Experience working with auditors or security reviews.
- Familiarity with upgradeable contracts (proxy patterns).
- Backend experience (Node.js / TypeScript).
- Experience in client-facing or consulting environments.
Tech Stack:
- Solidity.
- Ethereum.
- Polygon.
- Arbitrum.
- Hardhat / Foundry.
- Node.js.
- TypeScript.
- React.
- ethers.js.
- IPFS.