Blockchain Expert

Web3 Talent

@jakub130

I’m a builder who likes hard systems—and I’m at my best when the work sits at the intersection of backend engineering + blockchain + security. Over the last 9+ years, I’ve shipped real Web3 products across Ethereum/Polygon/Solana/Cosmos/Hyperledger—DeFi protocols, NFT marketplaces, DEX integrations, and cross-chain flows. I’m not just “smart contracts only”: I also build the off-chain services that make these systems reliable in production (Node.js/TypeScript APIs, monitoring, automation, CI/CD).

What makes me strong:

  • Results + scale: helped deliver a DeFi protocol + NFT marketplace that supported 5,000+ active users and reached $10M+ TVL....
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Salary & Rates

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Location, Languages, Skills

Active over a week ago
Crakow, Poland
🗣️English
🚀 In crypto since 2018
🌱 Member since February 2026
RustSolidityPythonJavaScriptTypeScriptVyperNodeWeb3
Accepts Crypto
Accepts Fiat
Open to Full-time
Open to Part-time
Remote
Open to Relocation

Social Media

Tell us a joke?

Why do programmers prefer dark mode? Because light attracts bugs.

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