Junior/Middle Smart Contract Developer (DeFi/Cross-Chain) to $3000

About Us:

Our ecosystem is an American-Ukrainian Web3 venture. In the market for 7+ years, we’ve built many exciting DeFi products and supported other projects in their journey. Current company is our launchpad and incubator, empowering innovative blockchain startups with the necessary resources and exposure to succeed. It powers token launches and serves as a growth studio for the founding teams. We bring investors, early adopters, and the expertise to showcase the most promising projects to the global crypto stage.

About the Role:
Join our team to design and deploy mission-critical smart contracts powering our decentralized naming service (address resolution for EVM & Move-based chains) and cross-chain DeFi protocols. You’ll ensure security, efficiency, and interoperability across ecosystems like Ethereum, Aptos, and Sui.

What You’ll Do :
- Architect, code, and audit Solidity and Move-language smart contracts for DeFi protocols, naming services, and cross-chain communication.
- Implement upgradeable patterns (proxies, Diamond Standard) and gas-optimized contract design.
- Develop robust testing suites (unit/integration tests) and deployment pipelines for multi-chain environments.
- Collaborate on security practices: static analysis, formal verification, and third-party audit coordination.Research and integrate cross-chain solutions (LayerZero, Axelar, Wormhole) for seamless interoperability.
- Document contract architectures, risks, and governance mechanisms. 

What We Require :
- 1 + years of smart contract development experience with Solidity and/or Move (Aptos, Sui).
- Deep understanding of security best practices (e.g., SWC Registry, reentrancy, oracle risks) and audit processes. 
- Hands-on with testing/deployment tools: Foundry, Hardhat, Move CLI, or similar.
- Experience with proxy patterns (Transparent/UUPS), contract upgradeability, and versioning. 
- Familiarity with EVM chains (Ethereum, L2s) and Move-based ecosystems. Strong grasp of cryptography, consensus mechanisms, and gas optimization.

Nice to Have :
- Experience with cross-chain communication (IBC, CCIP, LayerZero) or bridging protocols. 
- Contributions to open-source DeFi projects or blockchain infrastructure (e.g., ENS, Chainlink). Background in financial systems, game theory, or decentralized identity solutions.

Tech Stack :
Smart Contracts: Solidity, Move, Rust (Aptos/Sui)Tools: Foundry, Hardhat, Slither, MythX, GitHub Actions Blockchains: Ethereum, Aptos, Sui, EVM-compatible L2s

Why Join?
Pioneer cross-chain and modular naming/resolution systems at the forefront of DeFi. Work with cutting-edge Move/Sui/Aptos ecosystems and EVM-based infrastructure. Competitive salary + token incentives + flexible remote culture.

Communication is in Ukrainian language.