Irinei Kalachev

I am a Web3 developer with a background in design and entrepreneurship. My current work is focused on the DeFi ecosystem, where I build onchain tools and study protocol mechanics.

I develop and maintain onchain arbitrage bots on Base using Solidity, Node.js, and Ethers.js. My projects involve implementing Flash Loans and monitoring pool liquidity. As a Web3 native, I actively provide liquidity across multiple protocols and enjoy breaking down complex DeFi topics for others, onboarding them to the onchain economy.

Alongside my dev work, I have 15+ years of experience in UX/UI and graphic design, allowing me to build clean and functional UIs. My background also includes co-founding and managing a legal-tech platform, which gave me a practical understanding of project strategy and scaling products to a paying user base.

I am a hands-on builder who is always keen on learning new stuff, whether it’s mastering a new DeFi primitive or refining my workflow. I use AI tools to increase my dev speed, but I take the time to study the code provided, verifying and refining it manually to ensure I understand the underlying logic and system security. I’m currently looking for a role within a Web3 company where I can contribute to both the technical logic and the user experience.

Technical Stack
Web3: Solidity, Hardhat, Ethers.js, Tenderly, heavy DeFi user

Languages/Tools: JavaScript, TypeScript, Python, Node.js, React, Next.js, VS Code, Telegram bots

Design: UX/UI, Figma, Adobe Creative Suite, Identity, Web & Print Design