MICHA M.
Senior Smart Contract Engineer
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Michał M. is a seasoned Smart Contract Engineer based in Poznań, Poland, specializing in DeFi and cross-chain technologies. With over six years of experience, he has built a robust portfolio focusing on the development and security of smart contracts written in Solidity, spanning both EVM and non-EVM chains. Currently, he is a key contributor at LI.FI, a bridge and DEX aggregator processing over $80 billion in volume. Here, he works extensively on the EIP-2535 Diamond architecture, overseeing the development and hardening of bridge and swap facets along with enhancing smart-contract security systems. Previously, Michał played a pivotal role at Instadapp, creating Solidity smart contracts for DeFi protocols with nearly $1 billion in total value locked. His technical proficiency includes expertise in EIP-2535 Diamond, Safe multisig, and timelock governance. Educated at Stockholm University and Poznań University of Technology, Michał is recognized in the blockchain community, contributing to innovations and winning accolades such as the AIBC Malta Summit 2021.
Experience
Smart Contract Engineer
LI.FI · 2025 — PresentContributed to LI.FI's smart contract stack, including the maintenance and deployment of bridge and swap facets across 70+ production chains (EIP-2535 Diamond) and managed the onboarding of new networks. Redesigned the on-chain allowlist for third-party DEXs and functions, enhancing contract-level permission controls and conducting an external audit. Hardened the emergency-pause system with continuous verification procedures for pause-readiness across production diamonds. Strengthened security and governance through multisig and timelock upgrade flows, on-chain monitoring with automated response via Hexagate, and enforcing signed commitments along with static analysis and dependency remediation. Developed delivery automation leveraging TypeScript, Bash, and GitHub Actions, creating multi-chain deploy scripts and implementing AI-based tooling for deployment and security processes.Solidity Developer / Smart Contract Engineer
Instadapp · 2023 — 2024Created Solidity smart contracts using Foundry for Fluid, a DeFi protocol designed for shared liquidity across lending, vaults, and a DEX, while contributing to the security of assets totaling approximately $1B in total value locked. Developed ERC-4626 tokenized vaults featuring compliant deposit and withdrawal mechanisms along with share-accounting logic. Assisted in enhancing the Flash Loan Aggregator by integrating flash loans from platforms including Aave, MakerDAO, Balancer, Uniswap, and Compound, optimizing for lowest fees.Blockchain Developer
VERITIC / Patron-of-Art.com · 2022 — 2023Developed a no-code smart contract management tool integrated with Safe multisigs and custody solutions for both EVM and Casper Network chains. Implemented features for an NFT marketplace, including royalties and lazy minting aimed at high-profile collections.Blockchain Developer
ChainGain · 2021 — 2022Constructed smart contracts for a peer-to-peer lending and borrowing platform called GainMatcher, utilizing Hardhat. Developed the front end using React and ethers.js while managing the back end with Node.js on an EC2 infrastructure.Blockchain Developer
Mysa · 2020 — 2021Focused on tokenizing real estate assets using Solidity and Hedera, while also developing AWS-native decentralized applications.Blockchain Developer
Art_Value · 2020 — 2021Engineered ERC-721 smart contracts related to deposits and marketplace functionalities, employing a technology stack that included a front end built in React/Web3.js and a back end implemented in NestJS with TypeScript..NET Developer
THINQ Development · 2019 — 2020.NET Developer
Alliance Technology Polska · 2018 — 2018
Skills & Expertise
Education
- MSc in Computer & Systems SciencesStockholm University · 2020 — 2021
- BSc in Computer SciencePoznań University of Technology · 2016 — 2020