mnusurov

Senior Solidity Developer

Senior Solidity Engineer with 5+ years of hands-on experience building secure, gas-optimized smart contracts for DeFi protocols. Delivered cross-chain under-collateralized leverage frameworks, atomic multi-DeFi execution engines, EIP-1167 proxy systems, Create3Factory vanity deployments. Owned full development lifecycle—architecture, deployment scripts, E2E testing (Hardhat/Forge on Anvil forks), unit tests (Foundry), and analytics (DefiLlama adapters, Dune dashboards).

Proven audit track record: Quantstamp, Trail of Bits, Cantina, Spearbit, Certik, Mixbytes. Deep expertise in OpenZeppelin, inline assembly, upgradeable proxies, oracles, and protocol integrations (Aave, Curve, Balancer, 1inch, Pendle). Passionate about open-source contributions and protocol-level security

Experience: 5 years

Yearly salary: $0

Hourly rate: $55

Nationality: 🇰🇬 Kyrgyzstan

Residency: 🇨🇿 Czech Republic

Experience

Senior Solidity Developer

Arkis

2023 - 2025

In my role as a Senior Solidity Developer at Arkis - DeFi Prime Broker, I participate the development of a cutting-edge framework for under-collateralized DeFi leverage trading using Solidity. By employing the upgradeable diamond pattern (ERC-2535), we ensured modularity, scalability, and efficient governance of smart contracts. To guarantee robust implementation, we utilized Hardhat for end-to-end testing, simulating real-world scenarios to validate overall functionality, and Foundry for unit testing, ensuring the reliability of individual components. Additionally, we designed flexible and reusable deployment scripts to streamline the deployment process across multiple environments. This innovative solution has contributed to Arkis' mission of providing capital-efficient under-collateralized lending, enhancing the maturity of DeFi by optimizing cross-margining and multi-chain liquidation mechanisms.