Senior Blockchain Developer

About the Position

We are looking for a Senior Blockchain Developer to join our web3 agency. You'll build smart contracts for DeFi apps and tokens on EVM chains.

Responsibilities

• Write smart contracts on EVM chains (Ethereum, Polygon, BSC, etc.) for tokens, trading platforms, and DeFi apps
• Write tests and deploy scripts to ensure contracts work correctly and safely
• Build tools to interact with and manage smart contracts
• Write clear documentation for technical teams and users
• Work with other developers - backend, frontend, and designers - to build complete applications
• Lead the blockchain work as the only smart contract developer on projects

Requirements

Must Have:

• Know smart contracts deeply - you understand the EVM, common security issues, gas optimization, and best practices
• Strong Solidity skills with real projects you can show us
• Know DeFi basics - tokens (ERC20, ERC721, ERC1155), DEXes, liquidity pools, staking, or other financial tools
• Know how to test - you write thorough test suites (Hardhat, Foundry, or similar tools)
• Nearly full-time availability - you can work 30-40 hours per week when projects are active
• Work independently - you're comfortable working on your own while staying connected with the team

Nice to Have:

• Experience with Solana (Rust/Anchor) or other chains (Move, Func, etc.)
• Security audit experience or security training
• Contributions to open source web3 projects
• Agency or client work experience

How You'll Work

• Freelance contractor - paid per project at a fixed price
• Project-based - busy during active projects, quieter between projects
• Work remotely - from anywhere, with some overlap for team calls
• Talk to clients sometimes

Why Join Us

• Work on different types of web3 projects
• Team up with skilled developers and designers
• Build your portfolio with real applications
• Good pay for your work
• Freelance flexibility with steady project flow

How to Apply

Send us:

1. Live projects - show us products or protocols you've built that we can:
   • Visit and use (live websites or dApps)
   • Test and interact with
   • See on block explorers (verified contracts)
2. Your code - give us access to specific smart contracts you wrote:
   • GitHub links or verified contract addresses
   • Any audit reports for contracts you've worked on
   • Explain your role on each project
3. About you - a short description of your smart contract and web3 experience
4. Your availability - confirm you can work close to full-time hours during projects
5. Your rates - typical project rate or hourly rate