Kadvern

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 AG2026

    An 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