Simon Ostermann
Full-stack developer in Visbek, Germany
I build web apps and automate business processes, mostly for small and mid-sized companies in trades and manufacturing. AI is one of the tools I use when it clearly saves time.
- Based in
- Visbek, Germany
- Company
- Co-founder, Tosimo
- Studying
- M.Sc. Business Informatics
- Trained as
- IT Specialist, System Integration
About
I’m a full-stack developer and trained IT specialist for system integration. I’m doing my Master’s in Business Informatics at the University of Oldenburg and run Tosimo together with a friend.
Most of my work sits where software, infrastructure and business processes meet: connecting systems that didn’t talk to each other before, replacing manual steps with automation, and using AI where it makes a process faster or more reliable.
I work on Linux whenever I can, and Python is usually my first choice. I like open source and bring it into client projects wherever it fits.
How I work
Readable code
Code is read far more often than it is written, so I write it for the next person who has to change it.
Simple architecture
Clear boundaries between the parts of a system, so it can still be changed years later.
AI where it pays off
I use AI when it makes a process measurably faster or more reliable. For many tasks a script or a good form is enough.
Built to run
A solution should run for years without anyone having to look after it.
Selected work
Automated order intake
Incoming order emails are read automatically. Line items, documents and drawings go into the ERP without manual input. Orders with hundreds of positions used to take days to enter and are now in the system within minutes.
Inspection process without paper
A paper-based inspection and defect process, rebuilt as a web app with automatic reports. Management sees current figures at any time, and processing time dropped by more than 60%.
Long-term digitalization partner
For some clients I work as a long-term partner: documenting processes, choosing the right tools and automating the steps that take the most time.
All projects come from client work at Tosimo. Client names are left out, the systems are in daily use.
Stack
Background
Game server plugins in .NET 3.5
Writing plugins and experimenting on the server side. That’s how I got into programming.
IT specialist for system integration
Infrastructure, networks and how systems work together in practice.
Master’s degree and Tosimo
Master’s in Business Informatics at the University of Oldenburg, and Tosimo, where we build web apps and automation for companies in the region.
More work with AI agents
Moving LLM integrations and agents from experiments into workflows that run reliably in production.
Contact
If you have a project, a question about automation or just want to talk about technology, send me an email.