Software, built by two people
We build software that has to work.
Kadvern is Konstantin and Sander. We take on a small number of projects at a time and see each one through — from the first sketch to the thing running in production.
- Based
- Germany
- Status
- Open to new work
- Stack
- TypeScript · Next.js · Postgres
01/What we do
- Product engineering
- Web applications end to end: interface, data model, deployment. TypeScript, React, Next.js, Postgres — chosen because they are boring and hold up, not because they are new.
- Data-heavy interfaces
- Dashboards, research tools, internal systems. The hard part is rarely the chart; it is deciding what a person needs to see and cutting the rest.
- Working with AI, carefully
- We use language models where they earn their place and say so where they do not. No demos that fall over the moment real data arrives.
02/Selected work
Atlas
Deutsche Rohstoff AG2026An equity research dashboard: coverage, filings and figures for a portfolio of holdings, in one instrument panel instead of twenty spreadsheets.
Next.jsTypeScriptPostgres
Most of what we build sits behind a login. Ask and we will walk you through it.
03/Who we are
Konstantin Wolf
Co-founder
Sander Bock
Co-founder
- —We answer our own email.
- —We say what something will cost before we start.
- —We would rather ship less and know it works.
- —If we are the wrong people for it, we will tell you.
04/Contact
Tell us what you are building.
A short description of the problem is enough to start. We reply to everything, usually within a day or two.
hello@kadvern.com