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

50Hertz Transmission GmbH

  • Berlin
  • Post Date: 1. März 2024
Jobbeschreibung

We are 50Hertz - one of the four transmission system operators (TSOs) in Germany. Together with the Belgian electricity grid operator Elia (Brussels), we form the internationally active Elia Group. At 50Hertz, more than 1,600 people work to ensure that electricity flows reliably at all times, with low losses and optimised control over long distances. As a TSO, we play a key moderating role in the realisation of the energy transition from a social, technical and economic perspective. Our goal: to safely integrate 100 per cent renewable energy into the grid and system by 2032.

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

  • Full time (37 hours per week)
  • Heidestraße 2, 10557 Berlin
  • From today
  • Permanent contract
  • Job ID: 6775

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.


  • 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.

  • 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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