About Me

Never stop learning. Write clean, testable, maintainable code, leveraging AI to move faster and deliver great user experiences.

Experience

React Native Developer

Trigion Beveiliging BVfreelance

Jan 2025 - now

Working on a greenfield app that supports security guards in their day-to-day work with high security requirements.

  • Implemented biometric login with hardware-backed device binding
  • Set up CI/CD pipelines with native build cache
  • Built advanced app logging and monitoring with Datadog
  • Set up E2E testing using Appium and BrowserStack
Expo
React Native
TypeScript
Native Modules
Storybook
Azure Pipelines
Datadog
Appium

React Native Developer

Shell Recharge Solutionsfreelance

Oct 2024 - Jun 2025

Worked on Shell Recharge App, an app that supports EV drivers both on the go and at home.

  • Introduced Storybook for component-driven development
  • Established coding guidelines and way of work to gradually improve the codebase
React Native
TypeScript
Storybook
Redux Toolkit

React Native Developer

Alfen NVfreelance

May 2022 - Oct 2024

Worked on Eve Connect (home user app for charging station control) and MyEve (configuration app for installers). Helped Alfen transition from outsourced to in-house development.

  • Improved codebase stability, testability, and maintainability
  • Introduced E2E testing with Maestro
  • Introduced TanStack Query for easy server state management
React Native
TypeScript
Jest
Maestro
Native Modules
MobX
TanStack Query
mDNS
Bitrise

React Native Developer

Inviplay.nlfreelance

Feb 2022 - May 2022

"AirBNB for sport locations". Set up the mobile app from scratch, delivered many features in just 4 months.

  • Built the mobile app from scratch in 4 months
  • Integrated Google Maps SDK, Firebase Cloud Messaging, and online payments
React Native
TypeScript
TanStack Query
Axios
Google Maps SDK
Firebase Cloud Messaging
Firebase Dynamic Links
Online Payments

Allround Developer

iO (aka We are you)employment

2015 - 2022

Worked on multiple client projects as a developer at iO digital agency.

KLM Health Services

Sep 2020 - Feb 2022

Administration platform for health-related matters: absence management, appointments between clients and GPs, questionnaires, and examination results.

  • Implemented secure authentication for sensitive medical data
  • Built with Storybook and comprehensive testing (Detox + Jest)
React Native
TypeScript
Axios
Storybook
Detox
Jest
Keychain
Azure Pipelines
Fastlane

Boxplosive

Apr 2018 - Aug 2020

White-label app for digital loyalty programs of retailers such as Etos, Blokker, Konzum (Croatia) and Ritchies (Australia).

  • Built white-label architecture serving multiple international retail brands
React Native
Animated API
OAuth
Bitrise
Fastlane

profile.nl

Feb 2018 - Apr 2018

Website of Profile Tyrecenter. Developed features for appointment booking and fixed bugs.

  • Introduced E2E testing with Cypress for critical happy flows
Ruby on Rails
PostgreSQL
Cypress

Zoemie

Mobile app + website to make "super selfies": user looks at the church tower, presses a button on a mobile website and receives a picture by email.

Laravel
MySQL
Bash Scripting
Reverse SSH Tunnelling
Raspberry Pi
ImageMagick
FFmpeg

Founder

e-rijden.nlfounder

2012 - 2014

Founded a Dutch website about electrical cars, covering news, reviews, and comparisons in the early days of EV adoption.

Laravel
MySQL
Ubuntu

Singer / Actor

Variousother

2008 - 2014

Performed in musical theatre, studied at Tilburg Conservatory, and appeared in Les Misérables.

Founder

telecomvergelijker.nlfounder

2001 - 2009

Price comparison site for mobile phones and subscriptions. Built a lively community with forums, shop and product reviews, reaching 2.5 million views per month.

  • Grew to 2.5 million monthly page views
  • Built community features: forums, shop reviews, product reviews
PHP
MySQL
JavaScript
Co-located Servers

Education

Musical Theatre

Tilburg Conservatory

2004 - 2008

Electrotechnical Engineering (MSc)

Eindhoven University of Technology

1995 - 2002

VWO Gymnasium

Lorentz Lyceum Eindhoven

1989 - 1995

Services

React Native Development

Building and improving React Native apps, from greenfield projects to rescuing complex codebases. Specializing in Expo, TypeScript, and native module integration.

Codebase Refactoring & Optimization

Reducing complexity, updating dependencies, and applying consistent patterns to improve stability, testability, and maintainability.

Team Enablement & DX

Introducing coding guidelines, Storybook, code reviews, and pair programming to help teams develop more efficiently and deliver higher quality.

CI/CD & DevOps

Setting up build pipelines with native caching, automated testing, and deployment workflows using Bitrise, Azure DevOps, and Fastlane.