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Full-Stack Developer for Middleman (m/f/d)

Cologne or Remote



Since 2012, RenderThat combines the production of CGI with innovative software solutions. When it comes to creating digital twins, we are breaking new ground in terms of making the digitalisation even faster, more efficient and sustainable.

We are looking for a full-stack developer for our specially developed application Middleman in our office in cologne or remote. Middleman is an interesting and challenging application that helps a modern, fast-growing company to link and coordinate crucial processes in daily operations. It serves as an interface for connected services to upload files, process them and make them available again. Middleman makes use of various external interfaces. At the same time, Middleman has its own front end with which functions can be addressed and controlled via user interfaces.


  • You will be responsible for the maintenance, monitoring and constant development of Middleman
  • You will take over the linking and coordination of crucial processes via Middleman
  • You will take on the development of interfaces to connected services via Middleman in order to upload, process and make data available
  • You will be responsible for expanding and further developing Middleman’s user interface


  • You have a degree in computer science or a vocational training in the field of IT
  • You have several years of professional experience
  • You have in-depth knowledge of Laravel, PHP, Javascript, Vue, OOP, Rest, JSON, Docker and Git
  • Advanced knowledge in AWS and Kubernetes is an advantage
  • You have high quality standards for your own work
  • You have the aim to constantly develop professionally
  • You have a passion for new technologies and their challenges
  • A strong team spirit defines you and you enjoy constantly exchanging knowledge
  • You have very good language skills in German and English


RenderThat offers you the opportunity to work in a fun environment. Being part of a modern, growing company, working in friendly atmosphere, enjoying a healthy work-life balance with a competitive remuneration package and communal activities – these are just some of the benefits that make working with us such a positive experience.



If you have any questions about an advertised post, please do not hesitate to contact us.


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