Software Developer (m/f/d) innovative control and billing systems for e-mobility

Do you like to be involved when innovative products are created? Are you prepared to adapt software perfectly to requirements and to keep improving it? Then we are looking for you and your expertise for the further development of our solution JustOn for E-Mobility.

This intelligent control and billing software for e-charging systems is being developed as part of a research project, together with partners from science and technology.


  • Development and active design of the software system based on a declarative and functional approach in Clojure
  • Contact person, generator of ideas and energetic developer as part of our team 
  • Realisation of a product in our service architecture
  • Personal development as an expert for e-mobility


  • Experience as a software developer, if possible in the field of e-mobility or e-invoicing
  • Interest in and ideally initial experience with Clojure or another functional language (Haskell, Erlang, Elixir, Scala) as well as knowledge of SQL
  • Enjoyment of new ways of contemporary software architecture
  • Interest in professional development and exchange within the team


Our main product JustOn Billing & Invoice Management automates the entire invoicing process. The industry solution JustOn for E-Mobility, which builds vertically on it, is especially suitable for the billing of e-charging stations.

We are convinced that easy-to-use business software is the key to long-term customer satisfaction. With our software and know-how, we are experts in billing and e-invoicing.

Our customers are companies with digital business models that have chosen the market leader Salesforce CRM and need applications that make life easier for their business.


Set up your work & your working hours to suit your life situation – at JustOn, that’s exactly what we mean and live by. Let’s talk openly about which model suits you best and we’ll find a solution. You can work in this position in Germany, France or Spain. Our absolute plus: Every second Friday is free for everyone – with full pay.

Further training and personal development are not a phrase for us: Two days of educational leave and a fixed budget of 1500€ per year are available to every employee.

You’ll also find a cheerful, motivated team, competitive compensation and a family-friendly and appreciative environment with very short decision-making paths.

Job Location

You can work in this position at one of our locations in Jena, Erfurt or Ilmenau (Germany).

apply now

Contact person:

Dr. Sten Grimmer

+49 3641 5598580

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You can expect a motivated team, flexible work time models as well as a family-friendly and appreciative atmosphere with short decision-making processes.

Become part of our team and help shape the future of e-invoicing.

We look forward to receiving your application.

apply now