Henk Harmsel
Chief Technology Officer at Chaink
Gouda, South Holland, Netherlands
Summary
👤
Senior🎓
Top SchoolHenk Harmsel is a hands-on CTO and blockchain engineer with 14+ years of software experience and a full-time focus on Web3/DeFi since 2021, leading end-to-end delivery of smart contracts, backend services, CI/CD and cloud infrastructure. He has designed and shipped production-grade products—including an NFT marketplace, DEX, on-chain name service and lending/perps—with ~40k users and ~$30M cumulative volume at Bidds, and mentors small teams while remaining deeply technical. Comfortable across Rust/CosmWasm, Solidity/EVM, TypeScript and modern stacks (NestJS, React/Next.js, Postgres), he also implements cross-chain and indexing solutions (IBC, SubQL) and integrates AI/LLM automations into products. Based in Gouda, Netherlands, Henk combines startup velocity with enterprise-grade delivery, often stepping into frontend or ops work to unblock teams and own outcomes.
14 years of coding experience
9 years of employment as a software developer
Bachelor of Information and Communication Technology, Information Technology, Bachelor of Information and Communication Technology, Information Technology at HU University of Applied Sciences Utrecht (Hogeschool Utrecht)Higher General Secondary Education, Economy and Society, Higher General Secondary Education, Economy and Society at Driestar college
Dutch, English, German
Stackoverflow
571reputation
389kreached
13answers
1question
Github Skills (96)
spfx10
connections10
angularjs10
sharepoint-online10
sharepoint10
architecture9
office3659
pnpjs9
knockoutjs9
microsoft-graph9
java9
api8
rest8
pnp8
javascript-api8
Programming languages (7)
Github contributions (5)
PSI-Passive-Income/DPEX-swap-interface
Apr 2021 - Oct 2022
:pancakes: Pancake trading interface
Contributions:74 pushes, 2 branches in 1 year 6 months
pancakespancaketradingcryptocurrencyfinance
PSI-Passive-Income/DPEX-frontend
Apr 2021 - May 2022
:pancakes: Pancake main features (farms, pools, IFO, lottery, profiles)
Contributions:38 pushes, 1 branch in 1 year
lotterypancakespancakepoolsfarms
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