​Become part of a smart community and bring ingenious products to the Internet of Things with us. In interdisciplinary teams, we develop innovative IoT solutions end-to-end, from hardware to app. As a 200-strong grandcentrix, we work for well-known customers such as Gardena, Leica, Miele, Boxine and Hörmann. Since 2020, we have been part of Vodafone and, as an independent grow-up, enjoy all the benefits of this strong partnership. Now we are taking the next step and developing our own IoT products consisting of software, hardware and connectivity. Do you enjoy demanding challenges and varied tasks? Apply for a job with us!

Not in the mood for marketing platitudes? Then take a look here: www.grandcentrix.team


We are on the cutting edge – develop high quality backend solutions with Kotlin and Spring
Our solutions are future-proof – use Kubernetes in the Azure Cloud to make our systems highly available and horizontally scalable
DevOps – full responsibility from programming to operations
Programming is a craft for us, that’s why we live the principles from Clean Code. You participate in code reviews and implement software design principles like KISS, DRY, YAGNI or SOLID
We want to be effective and efficient, that’s why you work with modern tools like IntelliJ, Github Actions, Sonarqube, Grafana / Loki or Sentry


Several years of experience with Java or Kotlin and the Spring Framework
Deep understanding of the Spring Framework – preferably with Spring Boot, Spring MVC, Spring Data, Spring Security, and/or Spring Cloud
Knowledge of Docker, Kubernetes, and one of the three major cloud providers (Azure, GCP, or AWS) is a plus
The developers help shape the projects with us – you should be excited to contribute your own ideas and solutions


Flexible working hours, overtime regulations and an unlimited number of home office days, which you can even spend 20 days per year as a workation in other EU countries.
Go green – if you decide to buy a job ticket or a job bike, we will reward you with 30,-€ extra per month
Work with state-of-the-art tools on a MacBook Pro or ThinkPad (Windows or Linux) incl. admin rights – per month you can also spend $150 on the Azure Cloud (also for your private projects)
We’ll top up your parental allowance so you can spend valuable time with the family
Vodafone products of your choice (e.g. a cell phone contract) worth €40 per month and participation in the Family & Friends program
Develop yourself through the individual promotion of your personal development – your salary is also an annual issue with us
Attractive office buildings in Cologne and Dortmund – work from the roof terrace, for example, and enjoy an ice cream for free at the same time
…and of course the usual standards, such as 30 days of vacation, many events (MeetUps, lightning talks, summer/Christmas party, after-works, and much more), above-average subsidies for the company pension plan, fresh fruit, drinks and coffee flat, relocation support, corporate benefits, awo lifebalance, Gympass, underground parking with e-charging stations

With us, you can think out loud in any direction, we are not afraid of unusual ideas. It doesn’t matter if you are already a specialist in your field or if you are just on your way to become one. Be yourself! We are not interested in where you come from, where you are going, how you look, how old you are, what gender you are or what religion you belong to. We are a diverse company, so English is our company language.

We look forward to receiving your application. To make it easy for you, all we need is a resume or link to your Xing or LinkedIn profile. Feel free to contact us with any questions at jobs@grandcentrix.net.