Matthias Kunnen
Freelance Full Stack Developer at bookingworldspeakers.com
Ghent, East Flanders, Belgium
Summary
👤
Senior🎓
Top SchoolMatthias Kunnen is a freelance full-stack developer based in Ghent with 10 years of experience building scalable Node.js and Angular applications and owning backend architecture, databases, and DevOps. He specializes in TypeScript, GraphQL, and automation of testing and deployments, and has a track record of pushing TypeScript adoption in production APIs. Matthias contributes to open source—improving sequelize-typescript model loading and maintaining type definitions in DefinitelyTyped—helping improve developer experience across popular libraries. He has delivered production systems using AWS, CI/CD, and Headless Chrome prerendering for SEO, and often pairs pragmatic backend design with polished Angular front-ends using Material Design. Known for quickly turning requirements into reliable, deployable features, he thrives on experimentation and collaborative agile delivery.
10 years of coding experience
5 years of employment as a software developer
Secundair onderwijs, Informaticabeheer, Secundair onderwijs, Informaticabeheer at Visitatie MariakerkeBachelor’s Degree, Computer Science, Bachelor’s Degree, Computer Science at Hogeschool GentBachelor’s Degree, Computer Science, Bachelor’s Degree, Computer Science at Haaga-Helia University of Applied Sciences
Dutch, English, French
Stackoverflow
716reputation
69kreached
3answers
0questions
service-worker
top-5%
angular
top-5%
Github Skills (23)
sequel10
typesc10
typescript10
type-definition10
decorator10
type-system10
decorators10
orm10
typescript-types10
typescripts10
sequelizejs10
annotations9
testing9
static-typing9
typescript-definitions9
Programming languages (13)
Github contributions (5)
DefinitelyTyped/DefinitelyTyped
Mar 2019 - Sep 2020
The repository for high quality TypeScript type definitions.
Role in this project:
Full-stack Developer
Full-stack DeveloperContributions:6 commits, 6 PRs, 6 comments in 1 year 6 months
Contributions summary:Matthias primarily contributed to type definitions for various libraries and frameworks within the `definitelytyped` repository. Their work involved updating and adding type definitions for libraries like Stripe, oauth2orize, serialport, node-mailjet, hijackresponse, and long-timeout. These contributions enhance the type safety and developer experience of projects using these libraries. The user focused on accurately reflecting the APIs and features of each library in TypeScript.
typescript-definitionstype-definitionshigh-qualitydtsdefinitions
sequelize/sequelize-typescript
Jul 2018 - Jul 2018
Decorators and some other features for sequelize
Role in this project:Back-end Developer
Back-end DeveloperContributions:7 commits, 2 PRs, 10 comments in 17 days
Contributions summary:Matthias contributed to the `sequelize-typescript` project by implementing and refining model loading and matching functionalities. They addressed a bug related to filename handling during model retrieval. Moreover, the user introduced a feature to allow custom model matching based on filenames and member names. These enhancements were accompanied by corresponding test cases to ensure the features functioned as intended, improving the library's flexibility and reliability.
decoratorsannotationssequelizeexpressnodejs
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