Thomas Heyenbrock
Senior Software Engineer at Bayerischer Skiverband e.V.
Munich, Bavaria, Germany
Summary
🤩
Rockstar🎓
Top SchoolThomas Heyenbrock is a Senior Software Engineer based in Munich with eight years of experience building and scaling product-focused engineering teams and platforms. He has a strong track record across startups and industry—helping Stellate grow from an early hire into a revenue-generating business while leading architecture refactors, CI/CD, hiring, and product discovery. His background blends data science and engineering from roles at Finanzchef24, where he migrated APIs to GraphQL, modernized frontends, and led analytics as Head of Analytics. An active open-source contributor, he modernized GraphiQL examples and introduced @graphiql/react to update the library for React 17 compatibility. Thomas combines a mathematician’s rigor (TUM degrees in Mathematics and Computer Science) with hands-on systems and product instincts, and he also teaches alpine skiing, reflecting leadership outside of tech.
8 years of coding experience
6 years of employment as a software developer
Aufbaustudium, Computer Science, 1,3, Aufbaustudium, Computer Science, 1,3 at Technische Universität München
Github Skills (11)
javascript10
front-end-development10
react10
wpgraphql9
wordpress-graphql9
html9
graphql9
typescripts8
typescript8
typescript-types8
testing7
Programming languages (9)
Github contributions (5)
graphql/graphiql
May 2022 - Dec 2022
GraphiQL & the GraphQL LSP Reference Ecosystem for building browser & IDE tools.
Role in this project:
Full-stack Developer
Full-stack DeveloperContributions:201 reviews, 177 commits, 326 PRs in 7 months
Contributions summary:Thomas's commits primarily focused on updating the GraphiQL library and its examples to utilize React v17. They modernized the codebase by migrating to the latest React version across multiple example projects, including graphiql-create-react-app, graphiql-parcel, and graphiql-cdn. This involved significant changes to HTML templates and JavaScript imports to ensure compatibility with the updated dependencies. Furthermore, they introduced the `@graphiql/react` package to improve the component architecture.
browservscodeide-toolslsp-serverbrowser-ide
thomasheyenbrock/mastermind
May 2019 - Sep 2024
The game of mastermind implemented using different frameworks
Contributions:54 PRs, 63 pushes, 49 branches in 5 years 4 months
gamemastermindgame-ofgame-developmentframeworks
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