Arne Brasseur is a seasoned technology leader and CEO with 16 years of engineering experience, blending hands-on full‑stack development with startup leadership as founder of Lambda Island and CEO of Gaiwan GmbH. He is deeply embedded in the Clojure ecosystem—contributing to foundational projects like ClojureScript, nREPL, and the Overtone music platform—and builds developer tooling and templates that improve developer velocity and DX. His background spans backend systems, compilers, testing tooling and UI frameworks, plus practical experience with Ruby and JVM ecosystems, reflecting a pragmatic polyglot approach. Fluent in engineering management and execution, he’s known for shipping maintainable architectures, thoughtful refactors, and tooling that eases deployment and iteration. Unusually for a CEO, he continues to contribute technical fixes and tests across popular open-source projects, signaling a leader who still gets his hands dirty in code.
16 years of coding experience
11 years of employment as a software developer
Mandarin Chinese, Mandarin Chinese at Feng Chia University
Master of Science (MSc), Computer Science, Master of Science (MSc), Computer Science at Ghent University
Mandarin Chinese, Mandarin Chinese at Shandong University
Diploma, Audio Engineering, Diploma, Audio Engineering at SAE Rotterdam
English, Dutch, Chinese, French, German, Esperanto
Application template for Clojure + ClojureScript web apps
Role in this project:
Full-stack Developer
Contributions:332 commits, 85 PRs, 177 pushes in 5 years 1 month
Contributions summary:Arne's primary focus was on developing and enhancing the Chestnut template, a Clojure/ClojureScript web application template. Their work included updating dependencies, such as Clojure and ClojureScript versions, and integrating new features and libraries such as Om, Reagent, and re-frame for UI development. Furthermore, the user contributed by adding tooling for development, like Figwheel, for hot-reloading and browser-connected REPLs and created the option to choose less/sass preprocessors. They also added features like testing, the ability to add a code of conduct file and also made the template support Heroku deployment.
Contributions:17 releases, 36 reviews, 712 commits in 4 years 10 months
Contributions summary:Arne implemented the core runner logic, including features for dynamically adding to the classpath. They developed the initial bootstrapping by hard coding the runner logic. The user also implemented a configuration cascade from command line options to the tests.edn configuration file. Additional features are included like a custom test reporter.
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