You'll act as the technical driver of this space, working hand in hand with Marketing and other internal stakeholders, while collaborating regularly with our international engineering teams across Europe. We're looking for someone who thrives on solving real problems for real customers, who's comfortable owning frontend architecture end-to-end, and who's flexible enough to jump into different areas of the business as needed.
Your focus will be primarily Frontend, but if you have an interest in Backend or a Fullstack mindset, that's a big plus.
🧠 What you’ll do
- Collaborate internationally: Work closely with Octopus Energy ES and various global teams to develop and integrate new features.
- Own key product modules: Contribute directly to the private area, bill management, saving sessions, customer onboarding optimization, and marketing dashboards, all from a frontend perspective.
- Drive fast-paced impact: Deliver code that directly impacts customers. Our priorities adapt to real-world needs, meaning the pace is fast and the feedback cycle is satisfyingly quick.
- Thrive in an agile culture: Enjoy flat hierarchies and an open environment that fosters innovation, flexibility, and creativity.
- Stay flexible: Be open to working across different areas of the business as priorities evolve, and optionally get involved in backend-related work (Python/Django, GraphQL) if you have the interest and skills to do so.
The Octopus Energy tech team is responsible for the sites, services, and tariffs used by millions of customers worldwide. From building cutting-edge time-of-use tariffs to gamifying user experiences, we tackle a wide variety of exciting challenges to push the energy revolution forward.
Our teams are multi-disciplined and collaborate internationally, meaning you'll have the support and resources to work with top-tier talent and deliver high-impact global solutions.
⚙️ As a Senior Frontend Engineer in this team, you will:
🎯 What you’ll need to thrive
- Strong, proven experience as a Senior Frontend Engineer, with a solid grasp of modern frontend architecture.
- Deep expertise in TypeScript and React.
- Hands-on experience with Next.js, ideally hosted on Vercel.
- Experience working with GraphQL as a data layer.
- Comfort with CSS-in-JS solutions (experience with PandaCSS is a plus).
- Solid testing practices using tools like Vitest, React Testing Library, and Playwright.
- Experience working within a monorepo structure.
- A flexible, collaborative mindset and comfort working in a fast-paced, evolving environment.
- Interest or experience in Backend development, particularly Python (Django).
- Familiarity with PostgreSQL.
- A Fullstack mindset: curiosity about the full picture, not just the frontend layer.
Fluent spoken English is absolutely essential 🇬🇧. The team is international, so English will be the language you use on a daily basis.
On the technical side, you should have:
🧲 Nice to have:
💜 Why Join Us? Here’s What We Offer
- 📍 Location: join us in Barcelona or Valencia (Hybrid)
- ⏰ Full-time (40 hours/week)
- 💰 Octopus Energy share options
- 🏥 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.
Skills Required
- Fluent spoken English
- Proven senior-level frontend engineering experience
- Strong understanding of modern frontend architecture
- Deep expertise in TypeScript and React
- Hands-on experience with Next.js
- Experience with GraphQL as a data layer
- Experience with CSS-in-JS solutions
- Solid testing practices using Vitest, React Testing Library, and Playwright
- Experience working within a monorepo structure
- Flexible, collaborative mindset in a fast-paced environment
- Experience hosting Next.js on Vercel
- Experience with PandaCSS
- Backend development experience with Python and Django
- Familiarity with PostgreSQL
- Fullstack mindset or interest in backend development
What We Do
We’re not your typical energy company. We want to change energy for the better by making it greener, smarter, and more affordable for everyone. Not only are we one of the biggest generators of renewable energy in the UK, we’re also one of the top-rated energy suppliers.
