01
Backend & systems
APIs, services and data models in C#, Java, PHP and Python. Plus the work that rarely makes it into the tender: reading legacy systems, understanding them and replacing them step by step.
DEV4PRO GMBH — SOFTWARE ENGINEERING
Twenty years of code
that ships.
We develop software: backend and frontend systems, plus AI integration into existing products. From specification through to live operation — in the languages we have used in production for years.
01
What we build
Four focus areas: systems, interfaces, AI integration, and support from briefing through to handover.
02
Frontend & web
Interfaces in TypeScript and Vue.js. Dashboards, configurators and internal tools that get used daily and therefore have to be fast and legible.
03
AI integration
Wiring language models into existing products: data access, prompts, cost and failure cases. From prototype to a version that holds up in operation.
04
Project delivery
Work in your repository and your process, with a dedicated contact. From specification to a documented handover — as part of the team or for a bounded module.
02
What we work with
Grown over twenty years. The figure states how long each language has been in productive use.
C#
since 2006
Java
since 2008
PHP
since 2007
Python
since 2013
JavaScript
since 2006
TypeScript
since 2016
Vue.js
since 2017
AI / LLM
since 2023
03
How we work together
01
Briefing
Your requirements, your schedule. We read the specification and the existing code before we estimate — the estimate is meant to hold.
02
Build
Work inside your repository, your ticket system, your review process. Weekly status, visible increments, no surprises at the deadline.
03
Handover
Documented code and a clean handover to your team. On request we stay available for maintenance and further development.
20
Years of development
8
Core languages
B2B
Software for companies
CH
Dättwil, Aargau
CONTACT
Tell us
what needs building.
A short project description is enough. Within two working days you receive an assessment of feasibility, effort and a possible start date.