Stef Joosten
Senior Architect at ROUR
Greater Enschede Area Netherlands
Summary
👤
Senior🎓
Top SchoolStef Joosten is a digital architect and academic with 18+ years of experience guiding large, high-risk IT transformations in the Dutch public and healthcare sectors, with assignments at NVWA, IND, Rechtspraak and audits for UWV, CJIB and KvK. He blends formal methods, information system design and generative AI to deliver “first-time-right” systems that replace project chaos with predictable, controllable outcomes, and has secured contracts up to €30M. As initiator and product owner of the Ampersand method and compiler, he automates compliant information-system generation (Haskell-based tooling producing MySQL/JS web apps), turning big programs into small, auditable projects. A full professor in information systems design, Stef has published extensively (30+ scientific works, 140+ popular pieces) and maintains a research profile (h-index 14) that feeds practical boardroom advice and compliance-driven architectures. He is known for translating formal research into usable enterprise solutions and for offering a complimentary initial consultation to tidy up messy data landscapes.
18 years of coding experience
33 years of employment as a software developer
ir., Electronic Engineering, ir., Electronic Engineering at University of Twentediploma, High School, diploma, High School at Alberdingk Thijm College
English, German, French, Dutch
Stackoverflow
21reputation
45kreached
1answer
1question
Github Skills (71)
archimate10
dockerfile10
editor10
electron10
typescript10
rap10
devcontainer10
vscode10
ampersand10
dockerhub10
visual-studio-code10
microsoft10
docker-image10
database9
compiler9
Programming languages (13)
Github contributions (5)
AmpersandTarski/RAP
Dec 2016 - Jan 2022
This repository contains RAP, a web-based tool that lets you analyze Ampersand models, generate functional specifications and make prototypes of information systems. It is the primary tool for students of the Open University of the Netherlands in the course Rule Based Design.
Contributions:11 reviews, 171 commits, 37 PRs in 5 years 1 month
model-checkingprototyping-toolinformation-systemsampersandrule
AmpersandTarski/Publications
Jul 2017 - Jun 2024
Contributions:185 pushes, 12 branches, 6 tags in 7 years
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