Oleh Rubanik
Blockchain Expert & Senior DLT Engineer at GFT Technologies
Warsaw, Masovian Voivodeship, Poland
Summary
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Senior🎓
Top SchoolOleh Rubanik is a Blockchain Expert and Senior DLT Engineer with nine years of experience building production-grade digital asset and Web3 infrastructure across enterprise and startup environments. Based in Warsaw, he has delivered stablecoin tokenization for a G-SIB, designed private blockchain stacks (Hyperledger Besu & Kaleido) with secure API orchestration, and spearheaded tokenization and collateralization POCs for art assets. He combines deep Rust backend and EVM expertise with full-stack integration experience—owning backend systems, custom bundlers, subgraph nodes, and frontend interactions—to ship reliable, audited DeFi and NFT platforms. Notably, he implemented a WebAuthn validator using a native blockchain precompile without external crypto libraries and led ERC-4337 and EIP-7702 account abstraction work. Passionate about cryptocurrencies, he pairs hands-on engineering with pragmatic product delivery and a track record of security-audited releases.
9 years of coding experience
4 years of employment as a software developer
UNIT FactoryBachelor's degree Computer Science, Bachelor's degree Computer Science at KROK University
English, Ukrainian, Russian
Github Skills (3)
solidity3
blockchain1
wallet1
Programming languages (1)
Github contributions (5)
ChronoBank/Documentation
Nov 2016 - Feb 2017
Contributions:7 commits, 7 pushes in 2 months
Chrono-Tech/ChronoMint
Nov 2016 - Nov 2016
ChronoBank client
Contributions:2 commits, 1 PR, 1 push in 13 days
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