Backend Engineer II - Global Backend

We believe energy should be better – for you and the environment.

We’re a leading energy technology (EnTech) company, providing a better experience for our customers through transparency, honesty and simplicity. Better for the planet, through real long-term investment in renewable generation and a low CO2 future. We make energy green and flexible for consumers, with fair and transparent pricing.

We\’re on a mission to make energy greener, fairer, and genuinely better for people. Our global energy revolution is backed by Generation, the sustainable fund co-chaired by Al Gore. To succeed with this mission, we need excellent technical people who want to use their skills on the biggest challenge the planet is facing.

We’re proud to be Europe\’s best-funded green tech start-up, and one of Glassdoor\’s Best Places to Work. We’re also the most awarded energy supplier in the UK, and have been Which? Recommended eight years in a row.

What will you be doing?

Octopus Energy Engineering is responsible for the sites, services, and tariffs that are used by the millions of Octopus Energy customers worldwide. From building the latest, cutting-edge time-of-use tariffs, to helping customers actually enjoy tasks like providing meter readings through our wheel of fortune – and everything in between.

You’ll find a wide variety of challenges in the work we do as we help push the energy revolution forward. Our teams are multi-disciplined and collaborate between countries, meaning you have what you need to get the right people together and build the next great thing.

We are looking for a Backend Engineer II to join our Global Backend team at OE Engineering.

The Global Backend team are the powerhouse behind our mission to build the future of energy tech, working on a new backend codebase to be used by all our global Octopus Energy teams.

You\’ll help migrate and maintain the systems that power flagship features like Saving Sessions and Octoplus, as well as working cross-functionally with other teams to develop features with scalability in mind – shaping the future of low-carbon living, from heat pumps to EV chargers to solar panels.

This is an opportunity to focus on ambitious, high-impact work that\’s driving the global shift to clean, smart energy.

What you\’ll have…

• We\’re looking for someone with a general interest in technology and problem-solving; someone diligent and thoughtful. It would be helpful to have experience/expertise in the following (in rough priority order):
• Python
• Django (or equiv. web framework)
• Domain modelling
• GraphQL
• Writing robust and fault-tolerant software
• Celery and async processing
• Postgres

Plus experience in the following would be a bonus:

• AWS
• React and Redux

Why else you\’ll love it here…

• Wondering what the salary for this role is? Just ask us! On a call with one of our recruiters it\’s something we always cover as we genuinely want to match your experience with the correct salary. The reason why we don\’t advertise is because we honestly have a degree of flexibility and would never want salary to be a reason why someone doesn\’t apply to Octopus – what\’s more important to us is finding the right octofit!
• Octopus Energy Group is aunique culture . An organisation where people learn, decide, and build quicker. Where people work with autonomy, alongside a wide range of amazing co-owners, on projects that break new ground. We want your hard work to be rewarded with perks you actually care about! We wonbest company to work for in 2022, on Glassdoor we were voted50 best places to work in 2022 and our Group CEO, Greg has recordeda podcast about our culture and how we empower our people. We’ve also been placed in thetop 10 companies for senior leadership
• Visit our UK perks hub –Octopus Employee Benefits

We would prefer someone who can work in our London office but will consider remote candidates. However, you do need to be able to work in the UK.

Our process usually takes up to 4 weeks, but we’ll always do our best to flex around what works for you. Along the way, you’ll chat with our recruitment team and your Recruiter will help you throughout different stages. Got any burning questions before then? Drop us a message at and we’d love to help!

If this sounds like you then we\’d love to hear from you.

Are you ready for a career with us? We want to ensure you have all the tools and environment you need to unleash your potential. Need any specific accommodations? Whether you require specific accommodations or have a unique preference, let us know, and we\’ll do what we can to customise your interview process for comfort and maximum magic!

Studies have shown that some groups of people, like women, are less likely to apply to a role unless they meet 100% of the job requirements. Whoever you are, if you like one of our jobs, we encourage you to apply as you might just be the candidate we hire. Across Octopus, we\’re looking for genuinely decent people who are honest and empathetic. Our people are our strongest asset and the unique skills and perspectives people bring to the team are the driving force of our success. As an equal opportunity employer, we do not discriminate on the basis of any protected attribute. Our commitment is to provide equal opportunities, an inclusive work environment, and fairness for everyone.

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