Sietse Voort

Full-stack developer & Ordina.

React and Flutter enthusiast providing services for programming needs. Join me down below and let's get in touch!


Services I offer

App Development

Mobile App Development

Creating elegant apps suited for your needs following high-quality standards.

Benefits when hiring me

  • Custom CMS/Admin Panel fit to your needs
  • Clean Architecture & Test-Driven
  • Fast & Secure Performance
  • High-Quality Code
Web Development

Web Development

All the benefits from mobile app development, but for the web!

Web Development

  • SEO Optimization
  • Responsive Design
  • Easily migrate Flutter Mobile to Web and vice-versa


User experience is my focus when I build a solution. I listen to the details of your requests but I always keep the big picture in mind.


  • Waterfall, Scrum or Kanban frameworks
  • Trello/Jira/Asana and all modern PM tools


Since the beginning of my career as a developer, I have been working on full-stack projects for agencies such as Waternet, Ordina, and the Dutch Chamber of Commerce (Kamer van koophandel). My favorite language is Flutter, although I am enthusiastic about most front-end technologies lately.

I offer a wide range of services, including Smart Contract audits in TEAL, Flutter development, React development, Python automation, and anything that has to do with C/C++ :D

Admin Dashboard App | Desktop