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Klafka & Hinz Energie-Informations-Systeme GmbH Tech Stack

Billing and energy-data management platform for European utilities

IT Services and IT Consulting Aachen, NRW 51–200 employees Founded 2000 Public Company

Klafka & Hinz operates FirstX, a billing and energy-data system built on .NET, Oracle, and SQL Server for utilities across Europe. The company processes 14 million metering points annually across over 100 customers. Current hiring is sparse (5 open roles, none posted in 30 days) and limited to junior and mid-level engineers in Germany, suggesting either a stable product phase or constrained growth capacity.

Tech Stack 12 technologies

Core StackC# Oracle SQL Server PostgreSQL Visual Studio React JavaScript TypeScript .NET VB.NET F# ASP.NET Core

What Klafka & Hinz Energie-Informations-Systeme GmbH Is Building

◆Challenges

Constantly changing requirements

▲Active Projects

Workflow engine customization

Hiring Activity

Minimal5 roles · 0 in 30d

Department

Engineering

5

Seniority

Junior

2

Mid

2

Senior

1

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About Klafka & Hinz Energie-Informations-Systeme GmbH

Klafka & Hinz Energie-Informations-Systeme GmbH is a 51–200-person software company founded in 2000, headquartered in Aachen, Germany. Their flagship product, FirstX, is an integrated billing and energy-data-management system used by over 100 customers across more than 230 tenant instances. The platform handles meter-data management, offer and portfolio management, and billing workflows for all market roles in the energy sector. The underlying technology stack is primarily .NET (C#, F#, VB.NET), Oracle, SQL Server, and PostgreSQL, with React and TypeScript on the front end. The company operates as a public company and has been active in sustainability, reducing annual CO2 emissions by 90% since 2006.

HeadquartersAachen, NRW

Company Size51–200 employees

Founded2000

Hiring MarketsGermany