(Senior) Software Engineer - Java d/f/m

(Senior) Software Engineer - Java d/f/m

Location(s):

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. Thats 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 Europes 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