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HI

Hennadii Ivtushok

Staff Smart-Contract Engineer

๐ŸŸกLurking

Work Preferences

Salary

USD 275,000 โ€“ 350,000

Skills

Ethereum/EVM10/10
Solidity10/10
DeFi Protocol Architecture9/10
Upgradeable & Proxy Patterns9/10
Foundry9/10
Gas Optimization (9/10)Smart-Contract Security (9/10)MEV / Arbitrage / HFT (8/10)Echidna (Fuzzing) (8/10)Cross-Chain Messaging (8/10)TypeScript (8/10)Rust (7/10)Solana (7/10)

Work Experience

Senior -> Staff Smart-Contract Engineer

Auto Finance (prev. Tokemak)

Jan 2022 โ€” Present

Building a novel DeFi protocol to solve capital efficiency problems. Writing smart-contracts holding >$100m in TVL on mainnet. Implemented ERC4626-like vault & liquidity management mechanisms. Worked on smart-contract security reviews with auditors. Built automated testing infrastructure (Foundry + Echidna fuzzing). Implemented rebalancing & yield distribution logic with integration across popular DEXes and Lending protocols.

Senior Web3 Engineer

MetaMask

Jan 2022 โ€” Dec 2022

Contributed to MetaMask Flask extensibility architecture. Worked directly with core wallet team on experimental extension features enabling plugin integrations.

Technical Product Manager (Contract)

Umee

Jan 2021 โ€” Dec 2021

Coordinated Ethereum-side smart contract launch for cross-chain DeFi hub. Defined protocol requirements across Cosmos <> Ethereum integration. Worked closely with engineering & security to deliver mainnet deployment.

Senior Blockchain Developer

Unstoppable Domains

Jan 2020 โ€” Dec 2022

Implemented cross-chain domain resolution infrastructure. Contributed to open-source libraries used across multiple EVM chains. Built backend services interacting with smart contracts via JSON-RPC. Improved system reliability and scalability of domain minting flows.

Senior Software Engineer

EPAM Systems

Jan 2020 โ€” Dec 2020

Developed MVP for the online betting platform. Built private & public APIs, integrated with 3rd party fraud-check providers and Amazon Web Services. Designed & implemented data transfer flows. Maintained the customer production environment.

Software Engineer -> Senior Software Engineer

SoftServe

Jan 2018 โ€” Dec 2020

Working in a customer-facing position, solved numerous client issues. Investigated, implemented, and presented solutions. Interviewed and on-boarded candidates, provided mentoring & support to junior staff.

Software Engineer

EPAM Systems

Jan 2017 โ€” Dec 2018

Actively contributed to the development of two products by implementing core modules and integrating with third-party services, including payment system flows.

Education

National Technical University "Kharkiv Polytechnic Institute"

MSc ยท Computer Engineering

2019 โ€“ 2020

V. N. Karazin Kharkiv National University

BSc ยท Computer Science

2015 โ€“ 2019