My new job at 50Hertz Transmission GmbH (Elia Group) 


Java Software Developer (Tailor Made Developments) (f/m/d) 


Place of work: Berlin-Mitte - Heidestraße 2, 10557 Berlin 

Entry date: As soon as possible 

Permanent contract Full-time (37 hours per week) 

Job ID: 6775 

I am developing software components and objects within important projects for the digital energy transition. 

Why is this role interesting for me? The Elia Group is at the forefront of the energy transition. In this international team, I can contribute to innovative as well as intuitive tailor-made applications, which meet and exceed the specific business needs. At the Elia Group, I can make an impact and create assets for an organization, which ensures the security of energy supply for 30 million people. At the same time, I can continuously develop my strengths and learn from my specialist colleagues.


My tasks as a Java developer:


  • Development of clean and efficient code based on specifications and guidelines,
  • Development of applications and systems,
  • Troubleshooting programming issues and ensuring a productive work environment,
  • Maintenance and regular improvement of existing software,
  • Pre-launch analyzing and testing,
  • Ensuring software security by developing programs to actively monitor the disclosure of private information,
  • Proactively seeking ways to improve processes and interactions, addressing the business needs,
  • Helping and supporting my team colleagues.


Agile and optimization-focused thinking is part of our team DNA at the Elia Group.

My profile: 


  • IT/tech-related academic degree (bachelor’s or master’s degree),
  • Several years of experience using the Java-stack,
  • Very good knowledge of Java frameworks (e.g., Spring Boot),
  • Good knowledge of redundant, highly available systems, micro service architectures, API-centric system designs, and development environments,
  • Knowledge of dependency injection, software design patterns and continuous integration, 
  • Language skills: English (C1), fluent German is a plus.


Nice to have:


  • Experience with development in cloud environment (public and private cloud),
  • Good knowledge of standards and Java web technologies (backend) such as Open API Specifications 3.0, REST, gRPC as well as Camunda BPM, Hazelcast as well as libraries for web front ends,
  • Knowledge of OAuth2.0, SQL databases, graph databases, NoSql databases as well as Kubernetes.



  • Individual training opportunities,
  • A modern working environment in the city centre (directly at the main station),
  • 30 days holiday,
  • A company restaurant with fresh prepared meals,
  • Free beverages (coffee, cocoa, tea, water),
  • A company Kindergarten and a parent & child office for short-term care bottlenecks,
  • Company pension scheme,
  • A multiple award-winning employer: Top Company (kununu, 2023); FairCompany (Handelsblatt, 2023); Most Wanted Employer (Die Zeit, 2023); Top Employer for IT Jobs (CHIP, 2023); Dream Employer: Innovative. Digital. Sustainable (FAZ Institute, 2022); Fair training & fair trainee program (Trendence, 2023); Germany's most family-friendly companies (Freundin, 2022).
  • … for more details visit our career website.


Flexi Compass – see how flexible this job is:


  • Working hours per week: 37 hours (full time),
  • Flexible working hours and a long-term working time account supporting your work-life-balance,
  • The number of flex days is not limited,
  • No core working hours,
  • Mobile working, also from home, is possible.

My application


I can hand in my application as soon as possible via the application form.


What do I need for my application?

  • CV and references
  • Salary expectations
  • Availability or period of notice


50Hertz Transmission GmbH – a company of the European Elia Group

Human Resources, Philipp Maximilian Böll,


You want to learn more and get additional details? Just write an e-mail to and mention the Job ID 6775. We will reach out to you as soon as possible.


We welcome applications from people with disabilities. The 50Hertz Disabled Persons Representative (SBV) ( will be glad to advise you confidentially, including on the accessibility of our workplaces. If you would like to mention your (severe) disability already in the application form and/or your application, we will forward your application to the SBV so that they can actively support your application from the beginning.


The Elia Group encompasses two major transmission system operators (TSOs) in two European regions: Elia Transmission in Belgium and 50Hertz Transmission, one of the four German TSOs in northeast Germany. Both TSOs operate at the heart of the European electricity system as they provide vital links between the various electricity producers and their 30 million end users. Learn more about jobs at Elia Group.