Rene Keijzer
Software Engineering Leader - Platform Flight
Leiden, South Holland, Netherlands
Summary
👤
Senior🎓
Top SchoolRene Keijzer is a software engineering leader with 11 years of hands-on experience, currently leading Platform Flight at KLM after progressive roles from full-stack engineer to technical lead. He blends pragmatic engineering with creative problem-solving, driving innovation and fast-paced delivery across dozens of non-critical applications and platform initiatives. A strong TypeScript practitioner and active contributor to DefinitelyTyped, Rene helps maintain high-quality type definitions that improve developer experience across the JS ecosystem. He began his career in gamified recruitment and education tech, giving him a unique appreciation for user-focused, data-informed systems. Based in Leiden, he pairs technical leadership with a disciplined, athletic mindset—boxing, climbing and calisthenics—which informs his collaborative and resilient approach to teams and projects. Always curious and conversational, he enjoys exploring hobby projects and leveraging outside-the-box thinking to tackle platform challenges.
11 years of coding experience
12 years of employment as a software developer
VMBO, Theoretisch, VMBO, Theoretisch at Vlietland collegeBachelor of Science (B.S.), Computertechniek (Computer engineering), Bachelor of Science (B.S.), Computertechniek (Computer engineering) at Hogeschool UtrechtApplication Developer, Computerwetenschappen, Application Developer, Computerwetenschappen at ROC Leiden
Dutch, English
Stackoverflow
1reputation
0reached
0answers
0questions
Github Skills (6)
typescript10
typescript-definitions10
typescripts10
type-definition10
typescript-types10
javascript8
Programming languages (2)
Github contributions (5)
DefinitelyTyped/DefinitelyTyped
Sep 2018 - Sep 2018
The repository for high quality TypeScript type definitions.
Role in this project:
Full-stack Developer
Full-stack DeveloperContributions:5 commits in 1 day
Contributions summary:Rene primarily contributed to adding and updating type definitions for various JavaScript modules within the DefinitelyTyped repository. They focused on defining types for `node-redis-pubsub` and `word2vector` modules, including test files to validate the definitions. Further, they updated existing definitions and integrated changes from a different branch, showcasing proficiency in TypeScript and the maintenance of type definition libraries.
typescriptdefinitiondtstypingstypescript-definitions
renekeijzer/Platformer-With-Expectations
Feb 2015 - Apr 2015
Contributions:37 commits, 34 pushes, 1 branch in 2 months
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