Octopus Energy

Senior Backend Developer

Valencia, Spain Remote Hybrid
React Next.js Python Django GraphQL API AWS Terraform
Description
We believe energy should be better - for you and the environment.

Octopus Energy is a leading energy technology (EnTech) company, committed to providing a better, fairer, and more transparent experience for our customers. Our dedication goes beyond just service: we make real, long-term investments in renewable energy to build a low-carbon future. By keeping energy green, flexible, and fairly priced, we’re helping consumers take control of their energy usage.

Our mission is simple: make energy greener, fairer, and genuinely better for people. Backed by Generation, the sustainable fund co-chaired by Al Gore, we are driving a global energy revolution. To achieve this, we’re looking for outstanding technical minds who are eager to use their skills to tackle one of the biggest challenges facing our planet.

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 seven years running.

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.
  • Octopus Energy is growing rapidly, and the Octopus Energy Engineering team is at the forefront of this expansion. We are looking for a Backend Developer who will work closely with Octopus Energy UK and various teams, focusing on the development and integration of new features for the website and mobile app. 
  • The role involves working on different modules, including the private area, bill management and saving sessions, contributing to customer onboarding optimization and the implementation of marketing projects through dashboards and the personal area.  
  • The team is driven by the mission of creating a direct impact on customers in everything it does, meaning priorities do sometimes change, but the pace and resulting feedback cycle is satisfyingly quick, and consistently so too.
  • We embrace flat hierarchies and an open, agile culture that fosters innovation, flexibility, and creativity. 
  • We don’t hang our personalities up with our coats and nor should you. At Octopus, we hire great people who get stuff done, all whilst being themselves. 
  • Great ideas come from great conversations: we’re looking for people who love to communicate and connect with their team.

What you'll need

  • 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 and REST APIs
  • Writing robust and fault-tolerant software
  • Celery and async processing
  • Postgres
  • Plus experience in the following would be a bonus:
  • AWS
  • Terraform, Packer, Consul
  • React and Next.js

What else you'll love about us

  • Octopus Energy is a unique 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!
  • Flexible working environment - genuine work life balance here, we treat you as a human, and do our best to make work and life merge smoothly together.
  • Equity Options Scheme - you own your own part of the business, share options in the whole Octopus Energy Group so we all work together towards success.
  • Office culture - have a certain tech requirement? We’ll do our best to get it. Weekly on a Friday we all get together (this happens virtually too) for company updates and drinks - we call it Family Dinner.
  • Your development is important - we support and help with development including internal and external courses, learning, study support etc, all bespoke to you.
Octopus Energy
Octopus Energy
Energy Energy Efficiency GreenTech Renewable Energy

0 applies

13 views

Other Jobs from Octopus Energy

Lead Mobile Engineer

Remote London, UK

Global Head of Data Engineering

London, UK Remote Hybrid

Frontend Engineer II - Flexibility

London, UK Remote Hybrid

Senior Backend Developer

Paris, France Lille, France

There are more than 50,000 engineering jobs:

Subscribe to membership and unlock all jobs

Engineering Jobs

60,000+ jobs from 4,500+ well-funded companies

Updated Daily

New jobs are added every day as companies post them

Refined Search

Use filters like skill, location, etc to narrow results

Become a member

🥳🥳🥳 452 happy customers and counting...

Overall, over 80% of customers chose to renew their subscriptions after the initial sign-up.

To try it out

For active job seekers

For those who are passive looking

Cancel anytime

Frequently Asked Questions

  • We prioritize job seekers as our customers, unlike bigger job sites, by charging a small fee to provide them with curated access to the best companies and up-to-date jobs. This focus allows us to deliver a more personalized and effective job search experience.
  • We've got about 70,000 jobs from 5,000 vetted companies. No fake or sleazy jobs here!
  • We aggregate jobs from 5,000+ companies' career pages, so you can be sure that you're getting the most up-to-date and relevant jobs.
  • We're the only job board *for* software engineers, *by* software engineers… in case you needed a reminder! We add thousands of new jobs daily and offer powerful search filters just for you. 🛠️
  • Every single hour! We add 2,000-3,000 new jobs daily, so you'll always have fresh opportunities. 🚀
  • Typically, job searches take 3-6 months. EchoJobs helps you spend more time applying and less time hunting. 🎯
  • Check daily! We're always updating with new jobs. Set up job alerts for even quicker access. 📅

What Fellow Engineers Say

Sid avatar
Sid
Very nice portal for searching jobs in this rough market.
Mar 6, 2025
Michael Duran avatar
Michael Duran
Software Engineer
I've been using this job search site for a while now, and it’s honestly one of the best out there! The clean and easy-to-navigate UI makes the whole job-hunting process so much smoother. Plus, the job postings are always up-to-date, so I never feel like I’m wasting time. The cherry on top is the owner—super kind and always quick to respond. Definitely recommend checking it out if you're on the job hunt!
Aug 21, 2024
Sai avatar
Sai
It’s really great website for finding jobs based on skills it’s really helpful give a go
Aug 21, 2024
Adinadh avatar
Adinadh
What I like most about Echo Jobs is how easy it is to use. The platform helps me quickly find jobs that match my skills and interests, thanks to its great recommendations and filters. Yes, I would definitely recommend Echo Jobs to a friend. It makes job searching simple and efficient, making it a great tool for anyone looking for a new job.
Jul 23, 2024
As a student navigating the job market, I've found LinkedIn increasingly frustrating due to numerous fake postings by consultancies. In contrast, this job posting website has been a game-changer for me. It offers genuine opportunities and a straightforward application process, making it much easier to find and apply for real jobs. Highly recommend it to fellow students seeking reliable job listings!
Jul 16, 2024
Cliff Gor avatar
Echo Jobs has been exceptional in my job hunt where it provides one platform to job hunt and I don't have to open 10 websites just to look for a job. It has also helped me focus much on the job skill and the location filtering out the onsite jobs and remote ones. The only feature that I would request is to display fully remote jobs that are not restricted to a country since the one available shows ie, Remote, US yet. But if it could show remote only, that would be helpful not only to me but to other people applying for full remote and not tied to only US candidates
Apr 22, 2024
I found EchoJobs in 2022, and I love it. It has a lot of remote jobs. It's exclusive to software and technology jobs (helpful for devs like me). What I like the most are its filters and its API. If you're a tech professional seeking remote work, I highly recommend giving it a try to EchoJobs.
Mar 4, 2024
Would definitely recommend it! Excellent product, dedicated founder, Jobs are easier to find. Congrats 🎉 to the entire team!
Mar 3, 2024
Brandon Banks avatar
Brandon Banks
Echo Jobs is really impressive. It provides a great user experience with an ability to quickly search through the many job postings. There is an impressive amount of jobs here and it is quickly updated. The details in the each job posting is helpful when determining if it is worth pursuing. I would highly recommend using Echo Jobs to find the next step in your career.
Mar 2, 2024
Tyler Young avatar
Tyler Young
tylerayoung.com
Best wishes with EchoJobs—it's become my favorite job board overnight!
Dec 16, 2023
Simply put, it's the most up to date tech jobs aggregator I’ve found. I'm like... "I don't have to check 10+ jobs boards daily just to see if there's a new job listing? sign me up!" The filters are also quite helpful! The UI is very clean and straightforward. Love it!
Oct 5, 2023