Software Engineer
Octopus Energy
Company Overview
Octopus Energy, a subsidiary of Octopus Capital Limited, part of the Octopus Group
London, United Kingdom
2015
Approximately 3,000 employees globally (source: linkedin.com). No public revenue figures for 2023 or later are disclosed, but it manages £7 billion in renewable assets and £6 billion in generation capacity powering four million homes (source: octopusenergy.com).
What They Do
Octopus Energy has rapidly evolved from a UK energy supplier into a global entity, offering a diverse range of services and products. The company focuses on technology-driven energy solutions, primarily through its Kraken Technologies platform, which utilizes machine learning for customer-centric automation and supply chain management. This platform is licensed to utilities such as EDF Energy and E.ON, supporting over 50 million accounts worldwide (source: octopusenergy.group). Their offerings include 100% renewable electricity tariffs, time-of-use plans, and EV concierge services, catering to residential households, businesses, and global utilities (source: octopusenergy.com). With a strong emphasis on integrating renewable energy sources, Octopus Energy targets customers who are EV owners, solar adopters, and smart home users, providing them with innovative solutions that promote savings through dynamic pricing (source: energydigital.com).
Projects & Track Record
Octopus Energy Generation manages a portfolio of 300 projects across eight countries, primarily focusing on solar and offshore wind energy. With £6 billion in assets, these projects power approximately four million homes, and the company has established a reputation for paying 100,000 UK households for solar exports, generating 1.2 billion kWh annually (source: octopusenergy.com). Notable projects include the acquisition of Zestec Renewable Energy in December 2022, which aimed to expand their renewable energy capabilities, and a carbon-neutral bid deal in Manchester targeting 2038 neutrality (source: wikipedia.org). The company is also actively involved in ongoing initiatives like KrakenFlex, which balances grid energy through the integration of EVs, batteries, and solar technology (source: octopusenergygeneration.com).
Recent Developments
In recent years, Octopus Energy has made significant strides in expanding its market presence. In September 2023, the company completed the acquisition of Shell Energy's UK and German household businesses, which increased its domestic and business customer base to 6.5 million, achieving a 22% market share in the UK by April 2024 (source: wikipedia.org). Additionally, the company announced plans to spin off Kraken Technologies in September 2025, a move aimed at scaling operations to over seven million UK customers and enhancing its energy transition technology (source: youtube.com). These developments underscore Octopus Energy's commitment to innovation and growth in the energy sector.
Working There
Octopus Energy offers a variety of roles across multiple departments, including retail supply, technology development, and renewable energy project management. The company actively hires at its London headquarters, as well as in Manchester, Newcastle, Rotherham, and Birmingham, with employee ratings on platforms like Indeed reflecting a positive workplace culture (3.9/5 in London, 4.2/5 in Manchester, and 5.0/5 in Rotherham) (source: indeed.com). The culture at Octopus Energy emphasizes customer centricity and long-term investment in both people and technology, fostering an environment where employees are encouraged to innovate and contribute to the company's mission of providing sustainable energy solutions (source: energydigital.com). While specific benefits such as salaries or health plans are not publicly detailed, the company is known for its commitment to low-cost service and scalable tech career growth opportunities across its international operations.
Last updated on Feb 23, 2026 | Report an issue
Job Description
At Octopus Energy, we're not your typical utility company. We're a team of passionate people working every day to make energy 100% renewable, accessible, and fair for everyone.
We believe technology and innovation are key drivers of change. Our mission is to transform the way the world consumes energy breaking down barriers, simplifying processes, and delivering a more human and transparent service.
That's why our commitment is clear: clean energy should be the norm, not the exception. To achieve this, we combine sustainability with a people-first approach, delivering outstanding service and building a team that shares our vision.
But none of this would be possible without people like you. To keep growing and transforming the energy sector, we're looking for talent that wants to make a real difference. If you want to be part of this change, bring your energy, and help build a greener future, we want to meet you!!
What are we looking for?
We're looking for a Software Engineer to join a very special team within Octopus Energy Spain.
This isn't a traditional dev role you'll be part of a small, agile, cross-functional unit focused on quickly building impactful MVPs that make life easier for both our teams and our customers. Your mission will be to identify real needs across the business, propose practical tech solutions, and bring them to life at speed.
If you're curious, proactive, and passionate about solving real-world problems with code, this is your chance to kick off your tech career by doing meaningful work from day one.
We call it the 'Octopus Effect'
Working at Octopus Energy means being part of a company where culture and people come first.
- We're committed to flexibility and work-life balance.
- We want you to grow and reach your full potential.
- We believe in a fairer and more sustainable energy model.
We're waiting for you! 🚀
What you'll do
- Collaborate closely with different teams (Operations, Marketing, Tech, Customer Support...) to deeply understand their workflows, identify friction points, and turn real needs into technical solutions.
- Design, prototype, and build internal tools or MVPs that optimize processes or enhance customer experience from internal dashboards to smart process automations.
- Build & Automate: Use your development skills to build services, automate tasks, integrate with internal/external APIs, and work with SQL.
- Identify opportunities, pitch and test ideas fast, and evolve solutions based on real user feedback (internal or external).
- Work in a hybrid, flexible environment where autonomy is encouraged, experimentation is constant, and learning is part of the everyday workflow.
- Grow by doing: You'll learn quickly, supported by a team that shares knowledge, helps you thrive, and celebrates your progress.
What you'll need to thrive
- You have a foundation in backend or fullstack development. You don't need to know every technology on this list; we are looking for someone who has worked with at least one of these (and is excited to learn more!):
- Backend: Python, JavaScript (Node.js), or Ruby.
- Frontend: Modern frameworks like React, Next.JS, Vue, or Angular.
- A technical background in Computer Science, Software Engineering, Telecommunications, or a related field. Whether you're wrapping up your studies or have just graduated, this is a great place to start.
- A genuine passion for solving real-world problems whether they're internal inefficiencies or user experience challenges, with quick, effective tech solutions.
- Curiosity and initiative: you don't wait to be told what to build, you explore, ask questions, and identify opportunities on your own.
- Comfort with ambiguity and fast-paced environments, priorities change fast here, and we need people who can adapt and thrive in motion.
- A willingness to fail fast, learn quickly, and improve constantly. You're not afraid to experiment and iterate.
- Basic knowledge of web technologies, APIs, and databases (SQL), and how modern systems fit together.
- Fluent Spanish and fluent English, we work with international teams and many of our tools, documentation, and meetings are in English.
Bonus points if you've built side projects, automated internal workflows, or created tools to solve a specific problem, we'd love to see what you've built!
Why Join Us? Here's What We Offer
- Location: Valencia or Remote
- Full-time (40 hours/week)
Perks
- Octopus Energy share options
- Office breakfast and fresh fruit
- Flexible benefits (meal vouchers, transport, childcare, private health insurance...)
- Support for electric vehicle purchases
- Pension plan
- Training and professional development
- Fun, inclusive and collaborative team culture
- Regular team events (like our "Family Dinners")
Why You'll Love Working Here
- At Octopus Energy, we do things differently. We believe in a workplace where you can be yourself, grow professionally, and feel part of a team that genuinely wants to change the world.
- We're a Great Place to Work! On Glassdoor, we've been recognized as one of the Top 50 Best Places to Work, and our culture has been highlighted time and again.
- Want to learn more about how we work? Listen to our CEO in this podcast where he talks about our culture and values.
Ready to Join the Change?
If you're excited about building a more sustainable future with us, we'd love to hear from you!
Send us your CV, and if your profile fits, we'll be in touch.
We can't wait to meet you! 😉
Where necessary, we sometimes use AI tools to help with parts of our hiring process, like reviewing applications or assessing responses. We're lucky to receive a huge amount of interest, so these tools help our recruiters manage that volume, not replace them. Ultimately, every hiring decision (for example, whether to progress your application or not) is always made by a real person in our Talent team. If you'd like to know more about how we use your data, you can reach out to us via email at [email protected]. We're happy to help!
Apply now
Job expired?Please let Octopus Energy know you found this job on Rejobs. This will help us grow and get more people to work on renewable energy!
Apply now
Job expired?Please let Octopus Energy know you found this job on Rejobs. This will help us grow and get more people to work on renewable energy!
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About the role
May 20, 2026
Full time
Company
- Valencia, Spain
Entry-level or recent graduate
UTC+01:00