Custom Software Development
Custom systems for processes no standard product covers.
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About the service
We build custom business software: internal portals, booking and scheduling systems, ERP extensions, data platforms and software as a service products. Work runs in two-week sprints with a working increment at the end of each one, so you can see and use the product long before the final release.
2
week sprints with a demo at the end of every one
80%
test coverage on business-critical logic
4-9
months typical duration to a production release
Challenges we solve
- #1
Requirements change every month and the project never reaches a release.
We slice the scope into shippable milestones with acceptance criteria and freeze the sprint content once it starts. Changes go into the next sprint, not the current one.
- #2
The new system has to talk to a twenty-year-old ERP with no modern interface.
We build an integration layer with a well-documented API in front of the legacy system, using file exchange, database views or middleware, so new development never has to touch the old core.
- #3
The client fears being locked in to one development partner forever.
Everything lives in your repositories and your cloud account, with infrastructure as code, onboarding documentation and no proprietary framework of ours. Another team can take over in days.
- #4
Costs run away because nobody knows what a feature is worth.
Every backlog item gets an estimate and a business value note before it is scheduled. You see the price of a feature before it is built and can decide to postpone it.
Software development
Custom software is worth it when the process is your competitive advantage and bending it to fit standard software would cost more than building. We start with a discovery phase that produces a scope, an architecture decision record and a fixed price for the first milestone. Delivery includes automated tests, infrastructure as code, monitoring and technical documentation, so the system does not depend on us to stay alive.
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Frequently asked questions
A paid discovery phase costs 2,000 to 5,000 EUR and produces a scope and a fixed price for milestone one. After that we work either at a fixed price per milestone or at a day rate of 640 to 880 EUR.
TypeScript with Node.js and Next.js, Python for data-heavy services, PostgreSQL, Redis and containers on AWS, Hetzner or your own infrastructure. We pick what your team can maintain, not what is fashionable.
Yes. We begin with a code and infrastructure audit of three to five days, then give you an honest verdict on whether extending or rewriting the critical part is cheaper over two years.
You do, in your own cloud account, with EU or German data residency. We can operate it for you under a service agreement with agreed response times if you have no internal operations team.
Data minimisation, role-based access, encryption at rest and in transit, audit logging and automated deletion routines are part of the architecture, not an add-on. We supply the technical documentation your data protection officer needs.
ourclients
- Markus LehmannReview from Google2 months ago
websitebestellen exceeded our expectations! The new website is modern, fast and precisely tailored to our target group. Working together was straightforward and highly professional. A clear recommendation!
- Sabrina HoffmannReview from Google2 months ago
Great experience from start to finish! The team at websitebestellen advised us excellently, implemented our wishes and created a wonderful website. Absolutely recommendable!
- Lea SchneiderReview from Google2 months ago
websitebestellen took our online presence to a new level! The site not only looks great, it also brings us noticeably more enquiries and customers. Thank you for the excellent work!
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Your contact person
Miriam Kraus
I read every request personally and get back to you within one business day.