Python Backend Developer (f/m/d) — Energy Flexibility Applications

About the Team and Mission

In the Software and Data Services unit, the team builds modern software products with agile practices to support the European energy transition. As the portfolio of batteries, solar, wind, and biogas assets grows, the focus is on using their flexibility to help balance changes in renewable energy generation.

In this role, you will bring together multiple data sources and create Python-based applications that enable electricity traders to make the best possible use of the flexibility available in the company’s assets.

You will join an open, collaborative environment with experienced, engaged, and supportive colleagues. The culture values respectful communication, diversity, and an inclusive workplace. Flexible working time is part of everyday work, not just a promise.

Role Overview

This position can be structured as full-time or part-time, depending on the fit. The company is interested in discussing the arrangement that works best for both sides.

Technical Environment

The team works with Python 3 and a modern backend stack that includes asyncio, FastAPI, FastStream, SQLAlchemy, Pydantic, pandas, and pytest. The infrastructure and tooling environment includes Azure, GitHub CI/CD, Docker, MySQL, RabbitMQ, Redis, Terraform, Jira, Confluence, and Grafana.

What You Will Do

• Build backend applications, APIs, and algorithmic tools that help traders use power plant flexibility effectively.
• Develop dependable, maintainable, and scalable Python code.
• Learn how flexible power plants operate and factor their capabilities and limits into your solution design.
• Work closely with an agile, cross-functional team through code reviews, pair programming, and retrospectives.
• Support internal users by analysing issues and developing practical solutions for complex problems.
• Continue building your understanding of the energy sector with genuine curiosity.

Candidate Profile

• You bring several years of professional software development experience, especially with Python.
• You are able to break down complex workflows and requirements into production-ready implementations.
• You have hands-on experience with the listed stack or similar tools and are motivated to deepen your expertise.
• Background in electrical engineering, energy markets, or a related area is an added advantage.
• You are creative, eager to learn, and enjoy discussing technical approaches with colleagues.
• You can work confidently in English.

Working Style and Culture

Colleagues describe the environment as one where creativity, teamwork, and sustainability come together. The team develops practical ideas and turns them into working solutions that contribute to the digital energy revolution. Flexible working hours also make it easier to balance professional growth with private commitments.

Benefits and Support

• Hybrid, flexible working options, including home office equipment.
• Ability to build up extra vacation days and use them flexibly through the flextime model.
• Access to development opportunities such as language courses, coaching, and training.
• Job bike and Germany ticket support.
• Sports benefits such as Urban Sports Club and yoga classes.
• Regular team and company events including summer party, Christmas party, LAN party, and after-work pizza & drinks.
• External help with finding daycare places and support for other personal or professional challenges.

Application and Privacy

The company asks for a detailed application. It also states that non-disclosure guidelines are followed and that responses will remain anonymous.