Senior Frontend Engineer (m/w/d)

Octopus Energy Group - Berlin (DE) - Global - Construction & Infrastructure

Octopus Energy started in the UK with a bold idea: to become the first truly digital energy supplier. 
With cutting-edge technology and amazing people who are passionate about customers and the energy transition, we succeeded and today we are one of the UK’s largest energy providers.

In 2020, we took the next step and expanded to Germany. Since then, we have been supplying customers here with electricity and gas clean, fair, and transparent. Today, we serve over one million energy customers in Germany. At the same time, we are driving the green energy transition forward: from easy switching to heat pumps and smart meters to intelligent tariffs that make everyday life easier.

At Octopus Tech, you’ll have real ownership, variety, and the chance to shape products that make a tangible difference in people’s lives – lowering bills, enabling greener living, and delivering experiences customers genuinely love. You’ll work side by side with teams across marketing, operations, and data, and see the impact of your work in the real world, fast.

If this sounds exciting, we’d love to chat. 💚

What You'll Have
  • Deep and profound experience with modern JS frameworks (Next.js, Remix, Vue, etc.)
  • Expertise in the architecture of scalable web applications using modern patterns (server-side rendering, server components, etc.)
  • Experience taking problems, rather than strict guidelines, and developing well fitting solutions, collaborating with others where necessary
  • A keen eye for and expertise in accessibility — it's an integral part of your workflow, not an afterthought
  • Clear thoughts on how to spend your time in the most impactful way. There’s always enough to do, but not everything is equally important
  • Excellent proactive communication skills with the ability to clearly articulate technical concepts to both technical and non-technical stakeholders
  • Conscious and responsible use of LLMs (Large Language Models) to assist with coding: you stay in control — AI is your tool, not the other way around
  • English (C1 or above): Required for day-to-day collaboration with international engineering teams, code reviews, technical documentation, and participation in cross-team discussions
  • German (C1 or above): Required for effective communication with local stakeholders and business partners
  • Nice to Have

  • Python knowledge — our language of choice in the backend
  • Experience in the energy sector
  • Experience in adjacent fields (Backend, Infrastructure, UX Design etc.)
  • &nb

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