Octopus Energy started with a bold idea: to build Britain’s first truly digital energy supplier, and in 2025 we became Britain’s largest energy supplier.

We are now scaling fast and building the next generation of products to accelerate the green energy transition. The Flexibility team builds products and tools to make energy more flexible for customers.

What you'll need

• 5+ years of professional experience in backend web application development
• Hands‑on experience with Python/Django or equivalent web frameworks
• Strong systems design abilities, including microservices architecture
• Experience designing and operating RDBMS (e.g., PostgreSQL, MySQL)
• Experience with secure, reliable, large‑scale/high‑transaction systems
• Experience developing and operating systems in cloud environments (AWS, GCP, or Azure)
• A self‑sufficient person with a high level of initiative, able to work autonomously in a f...