(Senior) Software Engineer - Java d/f/m
Essen, NW, DE, 45141
RWE Supply & Trading GmbH
To start as soon as possible, full time / part time, permanent
Join Our Enterprise Integration Team
Our Enterprise Integration department develops and operates key applications and services that power our trading business—most prominently our central Tick-Data Platform.
About the Tick-Data System
The Tick-Data system ingests and processes orders and trades from multiple trading venues, delivering a single access point for real-time and historical market data. Built on Kafka, it serves as a mission‑critical data foundation for our trading operations.
Our Technology Stack
You will work with a modern, diverse, and evolving tech landscape, including:
- AWS services (e.g., ECS for containerized workloads)
- Infrastructure-as-code using Terraform
- Monitoring and observability with Elastic
- Messaging technologies: Kafka and ActiveMQ
- PostgreSQL as a core data backend
- Azure Boards (Azure DevOps) for agile project tracking
- AI productivity tools, such as Microsoft\GitHub Copilot and other AI-assisted development and operations tools
How We Work
We operate in cross-functional squads and follow Scrum and DevOps best practices to ensure reliability, speed, and continuous improvement. Developers collaborate closely with the Product Owner and the team to refine requirements, prioritise work, and continuously improve the platform.
Your responsibilities
- Be part of an agile, open, proactive, and future-oriented team
- Design and build Java applications and services
- Operate and support cloud-based applications in AWS
- Drive development in new projects from concept to delivery
- Implement enhancements to existing applications and adapters
- Support and train the Service Reliability Team to enable effective 24/7 support
- Work closely with the Product Owner and the development team, with the opportunity to gradually take on responsibilities as Product Owner deputy.
- Apply your understanding of trading processes; knowledge of how an order book is structured is highly appreciated
Your profile
- Minimum 5 years of experience in Java development
- Good understanding of agile software development and experience working in agile teams
- Understanding of data modelling, application development and testing methods
- Highly motivated, reliable, self-organizing way of working
- Experience in integrating Enterprise Systems preferred
- Experience with messaging systems (E.g.: Kafka and/or ActiveMQ)
- Familiar with cloud technologies and concepts (AWS)
- Infrastructure as Code (IaC)
Benefits you can rely on
We really appreciate you going the extra mile and using every ounce of energy when the heat is on. That’s why we want to make your time with us as enjoyable as possible. At RWE Supply & Trading GmbH we value our employees and strive to create a supportive and inclusive work environment. With a range of competitive benefits, we not only offer excellent development prospects and an attractive remuneration package, but also take care of your well-being and understand that life-work integration is essential.
Also our offer includes the following perks:
- Work at the commercial heart of RWE – right on one of Europe’s largest trading floors directly shaping the energy transition
- Task oriented and hybrid working model
- Join a diverse and multicultural team in a highly dynamic and rapidly growing business
- State-of-the-art campus with free fitness center, child care, on-site barista & restaurants
- Interesting area of work with a large variety of stakeholders/customers
- Active Solution Architect community, open for your ideas and improvements
- Powerful Hardware /multiple Monitors / latest’s development tools

rwe.com/career
Apply now with just a few clicks: ad code 92237
Any questions? Vince Manning (Recruiting), +44 7585 981083
We look forward to meeting you!
We value diversity and therefore welcome all applications, irrespective of gender, disability, nationality, ethnic and social background, religion and beliefs, age or sexual orientation and identity. #inclusionmatters
Of course, you can find us on LinkedIn, Twitter and Xing, too.
RWE Supply & Trading is the interface between RWE and the energy markets around the world. Around 2,000 employees from over 70 different countries trade electricity, gas, commodities and CO2 emission allowances. The trading entity also ensures the commercial optimisation of RWE’s power plant dispatch and markets electricity from RWE.
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