I work on C#/.NET services and integrations, including existing SOAP and WCF systems.
Software Engineer · Basel, SwitzerlandPORTFOLIO / 2026
JANREIST.
C# & .NET.
From UI to API.
I'm a software engineer based in Basel. I work on .NET applications, Blazor interfaces and the integrations between systems.
What I work with
01 / ExpertiseTHE BIG PICTURE
What I
work on.
My everyday stack, and the areas I keep exploring.
I build interfaces with Blazor and JavaScript, working with reusable components and responsive layouts.
SQL Server for application data, Azure for cloud services, and SignalR for real-time updates.
I trace bugs through existing code and data flows, then work on migrations and application updates.
I am exploring how agents and tools fit into applications, including permissions and evaluation.
LAB / INTERACTIVE DEMOPUBLIC BY DESIGN
Follow a
request.
Try an input. See the response and the steps behind it.
THE APPLICATION LAYERSUI → API → DATA
Start with a clear action. Show progress, return the result, and make errors useful.
GET /skills?q=.NET
A browser simulation. Follow the request through each layer.
Jump to the request form02 / RESPONSE—
The result will appear here.
{ }This runs in your browser using my public skills. The architecture view illustrates my .NET stack; this page and the request logic use JavaScript.
Show the steps.
A result alone hides the work. The trace shows where input is checked, data is read and a response is shaped.
Keep the logic separate.
The same request function drives both demos. Rendering and animation consume its result; they do not decide whether the request succeeds.
Load only what is needed.
Run the demo locally and load 3D only on request. That keeps it usable without a backend or a powerful graphics chip.
02 / JourneyALWAYS IN PROGRESS
How I got
here.
From an application development apprenticeship to working with .NET.
2023 — PRESENT
CURRENT CHAPTER
↗microtom ag
Software Engineer
From Junior Developer to Software Engineer. Working across .NET applications, integrations and the interfaces that bring them together.
2019 — 2023
THE FOUNDATION
Bell Food Group AG
Application development apprenticeship
Four years building a foundation in software development, from programming and databases to enterprise applications.
Technical vocational baccalaureate
Berufsbildungszentrum BL
Application Developer EFZ
Berufsbildungszentrum BL
03 / AboutBEHIND THE CODE
Jan Reist / JJ4Dev
Based in Basel. Working across applications, interfaces and integrations.
I like knowing
why it works.
When something breaks, I want to understand where and why. I follow it through the interface, the backend and the data, then work on the cause. I care about the small details, but also about finishing the job.
LANGUAGES
German/English
04 / LearningSTAY CURIOUS
Courses &
certifications.
What I have been learning alongside the day job.
2026AI agents & toolingAnthropic6 COURSES
- Building with the Claude API November 2026
- Claude Code in Action June 2026
- Introduction to Model Context Protocol June 2026
- Introduction to subagents April 2026
- Introduction to Claude Cowork April 2026
- Introduction to agent skills April 2026
2025First Certificate in EnglishCambridge EnglishFCE
Issued February 2025.
2024Azure AI FundamentalsMicrosoftCERTIFICATION
Microsoft Certified: Azure AI Fundamentals. Issued August 2024.
05 / ContactLET'S CONNECT
Have something
in mind?
You can find me on LinkedIn or take a look at my code on GitHub.