Web, SaaS, and desktop software from senior engineers in Cologne — and the modernization of the systems you already run.
What We Build
We build the software companies run on — a first MVP, the SaaS product after it, the internal tool that finally replaces the spreadsheet everyone's afraid of.
- Web applications and SaaS products — multi-tenant, built to scale
- Internal tools that replace manual workflows and fragile scripts
- Customer portals, booking systems, and marketplaces with payments and role-based access
- Desktop applications for offline work, hardware integration, and closed networks
- Marketing websites and landing pages that load fast and rank
- Document automation: contracts, reports, and estimates generated as finished PDFs
- Planning and scheduling engines with real rules encoded — bookings, shifts, working-time law
- API-first backends ready for mobile, integrations, and AI
Built Here
A sample, not a portfolio:
- A scheduling engine that encodes working-time law for eleven countries, verified by more than two hundred tests
- An AI intake wizard that interviews a prospect, scopes the project, and prices it — it runs on this site
- Document pipelines that turn application data into contracts, reports, and estimates as finished PDFs
- Multilingual, server-rendered sites — German, English, Turkish — built to load fast and rank
Modernization of Existing Systems
Aging software doesn't need a risky big-bang rewrite. We modernize incrementally — the system keeps running, and keeps earning, while it changes underneath.
- Code migration from legacy stacks (VB.NET, Classic ASP, Delphi) to C#, Go, or Node.js
- Monolith to services — where it pays off, not as a religion
- Containerization and CI/CD: Docker, Kubernetes, automated pipelines
- Tests first, as the safety net — nothing moves without one
Stack
Frontend: React, Next.js, TypeScript. Backend: Node.js, Python, PostgreSQL. Desktop: .NET. Infrastructure: AWS, Hetzner, Docker, GitHub Actions.
Boring on purpose. We pick technology your next hire already knows — and structure data and APIs so AI features slot in cleanly when you're ready.
How We Work
A small senior team and a direct line to the people writing your code — no project-manager telephone game. The engagement fits your stage: fixed scope, retainer, engineers embedded in your team — or a fractional CTO while you grow into the full-time hire. You own the code, the cloud accounts, and the pipeline. GDPR-compliant by default.
And if you just need a second opinion on an architecture or a codebase before you commit, that's a short engagement with a written answer — not a sales funnel.
Tell us about your project and you'll have a written assessment within 24 hours — scope, stack, timeline, and the risks.
Web & SaaS
Multi-tenant products built to scale
Desktop & Offline
Native performance, hardware integration, closed networks
Modernization
Legacy to modern without a big-bang rewrite
Senior Team
A direct line to the people writing your code
No Lock-In
Code, cloud, and pipeline are yours
Cologne, DE
DACH timezone, written reply within 24 hours