Junior Java Developer (all genders) e*star

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Locations: Frankfurt am Main, Karlsruhe, London

e*star provides trading solutions for the European energy markets and has more than 15 years of experience in this field. The European energy sector is currently undergoing a historic transformation due to the energy transition and digitalization. As experts in this field, e*star is working on shaping and developing the European energy market of the future - together with our customers.  


What awaits you

  • Support the development of our energy trading solutions in different areas like our trading screens and back-end services (built with Java 17 and ReactJS), integration of exchange and broker systems, leveraging public and private clouds services 
  • Help us further optimizing our applications for our small and large customers 
  • Work as part of our team using agile methodologies 
  • Work on software design, code reviews, unit tests and documentation 
  • Research and prototype new products and technologies 
  • Deepen the knowledge you have acquired and become an active member of our team 
  • Contribute to the continuous improvement of our development and continuous delivery processes 

What we expect from you

  • A suitable work permit
  • A degree in the field of (business) information technology or comparable courses of study or trainings 
  • A passion for software development and a strong focus on the quality of the results 
  • First practical experience developing software with Java and corresponding tools 
  • Curiosity to work in the field of energy trading where low-latency requirements and highly scalable distributed systems are of great importance 
  • Very good knowledge of English – comparable to English level B2 or higher 
  • Knowledge of German is advantageous 
  • Willingness to take over responsibility in the team later in your career  

Why e*star

  • Enjoy a professional environment within a relaxed, friendly corporate culture
  • Mobile working? Night owl or early bird? A classic consultant lifestyle with 5 days on site is not for you? With us you will find enough space for an optimal work-life balance
  • Stay healthy – our company supports you with a fixed health budget for individual services
We are a home for tech enthusiasts and doers. Origin, age, preferences - it doesn't matter to us. What counts is that we burn for the common cause.

We are already looking forward to getting to know you!
  • Jessica Nikolow
  • Recruiting Expert
  • +49 172 7254796