Java Software Developer (f/m/d) (Development Chapter)

50Hertz Transmission GmbH

  • Berlin
  • Veröffentlicht am: 1. April 2025
Jobbeschreibung

We are 50Hertz – one of the four transmission system operators (TSO) in Germany. Together with the Belgian electricity grid operator Elia (Brussels), we form the internationally active Elia Group. At 50Hertz, over 2,100 employees ensure that electricity flows over long distances reliably, with minimal loss, and optimally managed. As a TSO, we play a central role in the implementation of the energy transition from a technical and economic perspective, acting as a facilitator. Our goal is to integrate 100 percent renewable energy into the grid and system securely and affordably by 2032.

Java Software Developer (f/m/d) (Development Chapter)

  • Full-time (37 hours per week)
  • Heidestraße 2, 10557 Berlin
  • Start: As soon as possible
  • Permanent contract
  • Job ID: 6775


Why is this role interesting for me? The Elia Group is at the forefront of the energy transition. 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. As a developer, I will be part of an international development chapter, where professionals such as software engineers and architects collaborate, specializing in the development and maintenance of high-quality, scalable, and efficient software solutions. At the same time, I can continuously develop my strengths, share my knowledge 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 in the chapter and the guilds

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


  • 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, microservice architectures, API-centric system designs, and development environments,
  • Knowledge of software design patterns and continuous integration methodology, 
  • Language skills: English (C1) and German (B2-C1).

Nice to have:

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

  • 37 hour week
  • Company pension
  • 30 days of holiday
  • Flexitime with a long-term time account
  • Fair remuneration and a wide range of social benefits
  • Supported personal development

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.
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