Your job offer at 50Hertz Transmission GmbH (Elia Group)
Senior Java Developer - Kafka Specialist (f/m/d)
Place of work: Berlin-Mitte - Heidestraße 2, 10557 Berlin
Entry date: For the next possible date
permanent | fulltime
Job ID: 10493
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I develop and operate data integration solutions for the digital energy transition at 50Hertz.
What makes this job exciting for me: 50Hertz has long been committed to driving the energy transition. In the Data Integration Chapter, I design and implement modern, secure, and scalable data integration solutions for grid operations. I work closely with specialists from various departments, share best practices, and continuously develop my skills - both professionally and technically.
My Responsibilities
* Develop secure microservices for processing real-time data and time series using Java and Kafka,
* Design APIs and data models for high-performance interfaces and structured communication,
* Provide technical mentoring and guidance to developers in agile product teams,
* Foster interdisciplinary collaboration between teams (e.g., product team and Data Chapter),
* Document code and processes to ensure quality and traceability.
My Qualifications
* Degree in (Business) Informatics, Mathematics, or equivalent qualification,
* Several years of experience in Java development, including event streaming with Kafka and stream processing,
* Solid knowledge of microservices, distributed architectures, and IT security (e.g., BSI standards),
* Hands-on experience with Docker, Kubernetes, Helm, ArgoCD, CI/CD, REST/SOAP, and message-based communication,
* Proven experience in technical leadership and mentoring of developer teams in agile environments,
* Strong communication skills and team spirit for collaboration with interdisciplinary teams,
* Excellent German and English skills (C1 level).
Flexi Compass - see how flexible this vacancy 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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Benefits
* 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,
* … for more details visit our career website.
Your application
We are constantly screening, so please apply as soon as possible. Please upload your CV and references (stating your salary expectations and availability or notice period) via our application form.
Please do not hesitate to apply, even if you do not match the competence profile 1:1 in all points.
Would you like to learn more? Do you have (technical) questions about the task? Then write to work@50hertz.com. Please refer to the job ID 10493 in the email subject.
We welcome applications from people with disabilities. The 50Hertz Disabled Persons Representative (SBV) (sbv@50hertz.com) 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.
50Hertz Transmission GmbH – a company of the European Elia Group
Human Resources, Eduard Weissbrot, work@50hertz.com
www.50hertz.com