Stefan Houtzager
Application Manager
Utrecht, Utrecht, Netherlands
Summary
👤
Senior🎓
Top SchoolStefan Houtzager is an experienced application manager and software architect with 20+ years of hands-on experience designing, modernizing and maintaining both front- and back-end systems. He blends deep legacy Progress/OpenEdge knowledge with modern stacks like TypeScript, Deno, Elixir/Phoenix and Postgres, and specializes in event-driven architectures, BPMN/DMN decision automation and RabbitMQ integrations. Stefan builds pragmatic SaaS and REST/JSON:API backends, with a strong emphasis on model-driven design, refactoring for quality and real-time change-data-capture pipelines. He runs his own consultancy, delivering contractor work from architecture through implementation and DevOps with Docker and Linux. Notably, he pairs an academic background in chemistry with the ability to “read dinosaur code” yet produce clean, modern implementations—making him effective both as a fixer of legacy systems and as a builder of new frameworks. Based in Utrecht, he is available for contract roles and actively explores functional languages and tooling such as Haskell, Elixir and Deno.
12 years of coding experience
18 years of employment as a software developer
drs (msc) Chemistry, drs (msc) Chemistry at Utrecht University
German, English, Dutch
Stackoverflow
1reputation
28reached
3answers
1question
Github Skills (77)
arraybuffer10
vnc-client10
webstorm10
rubymine10
websockify10
elixir-mix10
novnc10
appcode10
clion9
javascript9
jquery9
select29
intellij-plugin9
wss9
html9
Programming languages (6)
Github contributions (5)
StefanHoutzager/elixir-dev-anywhere-docker
May 2016 - Jun 2019
Contributions:66 commits, 1 PR, 51 pushes in 3 years 1 month
elixir
StefanHoutzager/decimal-input.js
Feb 2019 - Nov 2019
Contributions:7 commits, 6 pushes, 1 branch in 8 months
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