Rechnerhaus GmbH

Rechnerhaus is a specialized software agency for modern web development. We support agencies, companies, and startups with technical excellence, an agile project structure, and a clear focus on sustainable, scalable solutions. Whether as an outsourced development department, a technical sparring partner, or a white-label partner — we deliver reliable, future-proof software solutions that make an impact. Web Development (Frontend & Backend) – Modern web applications, portals, and dashboards based on current frameworks API Design & Interface Development – Design, development, and documentation of REST APIs to integrate internal and external systems App Backends & CMS Solutions – Custom backend systems for mobile apps and web portals, including admin interfaces & role management MVP Development & Prototyping – Fast and focused proof-of-concept delivery: we support startups from the idea to a functional MVP White-Label Support for Agencies – As a technical partner, we handle implementation in the background — reliable, well-documented, and multi-tenant capable DevOps & Hosting Consulting – Assistance with deployment, CI/CD, containerization (Docker), and hosting setups