Web3 Talent

@jakub130

Blockchain Expert

Active over a week ago
🌱 Member since February 2026

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.
  • Security mindset: I bake in testing/auditing discipline (Foundry, Slither, Mythril/MythX) and have shipped critical logic with full coverage and clean production outcomes.
  • Performance obsession: I’ve reduced transaction costs by ~40%, built Solana infra with <100ms execution latency, and used ZK approaches to cut on-chain footprint by ~70%.
  • Ownership: I can take a feature from idea → architecture → implementation → production support, and I’m comfortable mentoring teammates along the way.

Languages & Skills

🗣️English
🚀 In crypto since 2018
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.

Endorsements

W
Web3 Talent
February 20, 2026

AI Software Engineer @ Google

Describe your working relationship with ----- and the context in which you observed their performanc...see more.