KESSEL & CODE

Software development.From prototype tolive product.

We build prototypes and custom software with AI and check every result ourselves. Our own products are built the same way.

Development logExample
  • CODEUpload API written, with tests
  • TESTAll automated tests passed
  • REVIEWData flow checked, change approved
  • LIVENew version released for testing
  • ALERTRegression in PDF export detected and reported
  • CODEFix written, test added
  • REVIEWLogin proposal rejected, replanned
  • LIVEFix rolled out after approval

The AI writes, we decide. Nothing reaches production until one of us has checked it.

From idea to production. With an off-ramp after every step.

You don’t have to commit to a big project up front. You know more after every step.

For us, built fast doesn’t mean unchecked.

The AI does the grunt work. We make the decisions, in the code too.

Checked, not just generated

AI writes code fast. Whether it’s sound and secure is our call.

From our own operations

We run our own products. That’s why we build things to keep running after the first release.

Data protection from the start

Processing in the EU wherever your data requires it. Clear rules govern how AI is used.

The people behind it.

More about us
Portrait of Armin Sanjari
Armin Sanjari
Managing Director, mathematics and analytics

Founded the agency IT-WINGS in 2016 and still runs it. It serves well-known clients in the automotive, consumer goods, pharma and mechanical engineering industries.

Portrait of David Otto
David Otto
Managing Director, economics and growth

Has been scaling digital businesses since 2015, first at Festool, then for six years at Mercedes-Benz. There he led projects in digital products and global performance marketing.

We don’t just talk about it. We run our own software.

With Propspector, a language model reads the facts from the documents. Hard-coded logic compares and classifies them. This separation makes AI reliable in everyday use. It also goes into what we build for you.

Common questions about software development.

What does software development cost?

That depends on scope, integrations and data protection requirements. We often start with a small prototype because it makes the estimate for the rest much more accurate.

How does AI help with software development?

The AI writes code, tests and documentation in a fraction of the time it used to take. Architecture, security and approvals stay with us. That makes things faster without anyone giving up control.

Prototype first, or straight to finished software?

If it’s unclear whether users want the solution, start with the prototype. If the process is clear and only the tool is missing, we can build right away. We sort that out in the first conversation.

What is it like to work with you?

Lean. A short call every two weeks with interim results and milestones, and we handle questions by email in between. We schedule workshops and on-site meetings when the project needs them.

Who do you work for?

Mainly mid-sized companies, the kind that want clear results and don’t need weekly alignment meetings to get them.

Who owns the code?

You do. You get the complete, documented code and decide for yourself whether to take it forward or leave operations to us.

Do you only work in the Stuttgart region?

No. We are based in Stuttgart and work across Germany. We meet in person wherever it helps the project.

What should your software do?

Tell us what you have in mind. We will tell you honestly whether a prototype is worth it and how we would start. You’ll get a reply within 24 hours.

hello@kessel-und-code.de
Rotebühlplatz 11–15, 70178 Stuttgart