Piet Kormelink
Technical Lead at Mindler
Stockholm, Sweden
Summary
👤
Senior🎓
Top SchoolPiet Kormelink is a seasoned Technical Lead and senior full-stack engineer with 11+ years in modern mobile and web ecosystems, currently shaping the Mindler app and its technical roadmap from Stockholm. He specializes in React Native, TypeScript and GraphQL, and has a strong track record bringing component-driven, test-first practices (Storybook, TDD) and CI/CD into teams and products across fintech, healthcare and SaaS. Piet blends hands-on development with architecture and coaching—having introduced GraphQL and Storybook at enterprise scale, mentored junior leads, and led migrations from legacy to modern stacks. His background spans founding product-focused teams and CTO duties to deep technical roles early in his career, giving him a rare perspective on product, ops and developer experience. He’s curious by nature, often researching security, DLT and Rust, and known for turning complex legacy landscapes into pragmatic, maintainable platforms. Pragmatic, collaborative and detail-oriented, Piet excels at shipping reliable user-facing apps while evolving engineering culture.
11 years of coding experience
39 years of employment as a software developer
Software architecture and development, Software architecture and development at The internetMTS Electronics, Building Computers (electronics, Software), MTS Electronics, Building Computers (electronics, Software) at High School, MTSing, Computer Technology, ing, Computer Technology at Saxion HogescholenManagement, Management at Van Stiphout Training
English, German, Dutch
Github Skills (200)
atom-editor10
opentok10
test-coverage10
odata10
integrate10
cross-platform10
gateway10
android10
wallaby10
native-testing-library10
ios10
react-native10
soap10
react10
javascript9
Programming languages (10)
Github contributions (5)
mindlercare/opentok-react-native-samples
Oct 2022 - Feb 2025
Sample applications using OpenTok and React Native
Contributions:1 PR, 4 pushes in 2 years 3 months
reactopentokreact-nativewebrtcandroid
pietgk/rn-firebase-bridge
Jul 2016 - Jul 2017
Contributions:17 pushes, 1 branch, 17 tags in 1 year
reactreact-nativefirebasebridgereact-native-firebase
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