Custom software &
web applications
I develop tailored software solutions from concept and architecture through implementation and reliable ongoing development.
Software engineering that helps when things get complex.
I build custom software solutions, solve critical problems in existing systems, and support their reliable evolution – pragmatically, methodically, and with long-term operations in mind.
Services for demanding software systems
Custom software &
Engineering support &
technical consulting
I strengthen existing development teams as a Senior or Lead Engineer and make architecture and technology decisions that fit the task.
Ongoing development &
3rd-level support
I analyse complex defects, stabilise existing systems, and evolve them in a focused way. Scope and availability are agreed individually.
The solution determines the technology.
My work is not tied to a single technology stack. I select programming languages, architectures, methods, and tools to fit the task at hand – instead of forcing a problem into a preferred technology.
Experience across the software lifecycle
- C# / .NET
- Java / Spring
- TypeScript
- React
- Mendix
- Azure
- Docker & CI/CD
- SQL & Oracle
- MongoDB & RavenDB
- OpenSearch
- APIs & Integration
Selected projects
Public-sector case management application
New development & modernisation
Digital processing of applications and cases, document and domain data management, and integration with external systems – implemented and evolved within a small team.
Anonymised case studyOracle to RavenDB
Database & data migration
Strategy, mapping, automation, and validation for a complex data migration during ongoing operations and with very little downtime.
Anonymised case studyEntra ID to Mendix
Identity & SCIM integration
An automated user lifecycle between Microsoft Entra ID and a Mendix application, including attribute mapping, validation, and error analysis.
Anonymised case studyStephan Gruber
Software Engineer & Technology Consultant
I have been developing software since 2017 – from mobile applications to frontends, backends, APIs, and complex line-of-business systems. Depending on the project, I work as a Developer, Senior or Lead Engineer, and as an Architect.
More about me and the companyLet’s talk about your project.
Whether you have a specific project request, a technical challenge, or an initial idea, I look forward to hearing from you.
Alternatively, you can contact me directly by email.