Middle/Senior Smart Contract Engineer

We are looking for a Middle/Senior Smart Contract Engineer to join our blockchain and DeFi product team in a hybrid format in Moscow.

• •Design and develop production smart contracts;
• •Implement vault mechanics, tokenized positions, financial accounting, roles, and limits;
• •Integrate DeFi protocols;
• •Manage the full cycle of changes: from technical design and implementation to deployment and support;
• •Write unit, integration, and fork tests in Hardhat, fuzz and invariant tests in Foundry;
• •Conduct security reviews, prepare contracts for audits, and address comments;
• •Gradually engage in production tasks in Rust.

• •Fixed compensation;
• •Influence on architecture and technical decisions;
• •Work with production contracts and DeFi integrations;
• •High level of ownership;
• •Opportunity to expand your profile from Solidity to Rust and system development.

• •Experience in developing and supporting non-trivial smart contracts in mainnet or a comparable production environment;
• •Production experience with Solidity and a deep understanding of EVM;
• •Proficient use of Hardhat;
• •Practical knowledge of DeFi;
• •Understanding of smart contract security risks;
• •English for working with documentation and technical communication;
• •Interest in developing in Rust.

• •Participation in audits, bug bounty, or security research;
• •Experience with smart contract analysis and verification tools;
• •Knowledge of Yul/assembly, L2, bridges, or cross-chain solutions;
• •Experience with Rust, indexers, simulation, or transaction tooling.