Frontend Engineer

Octopus Energy; Greater London; On-site; GBP 60,000 - 90,000; Full time

Job summary

Octopus Energy is hiring a Frontend Engineer to join the Onboarding team. You’ll own parts of the consumer journey, build scalable, accessible websites, and collaborate with marketing, operations and data to deliver tangible improvements that lower bills and promote greener living.

With 3+ years of React/Next.js experience, you’ll shape product experiences in a fast-moving, open culture. Autonomy, collaboration and creativity are valued here, with a focus on user-centric design and impact.

Qualifications

• 3+ years of experience with React/Next.js stack, strong in building frontend applications.
• Ability to develop accessible, performant websites with good UX.
• Collaborative mindset, able to work with cross-functional teams to ship.</

Responsibilities

• Own parts of the onboarding journeys and improve user experiences.
• Collaborate with marketing, operations and data teams.
• Build scalable, accessible UI components for high-traffic sites.

Skills

React

Next.js

TypeScript

GraphQL

Accessibility

Testing

Tools

React

TypeScript

Next.js

GraphQL

React Testing Library

Playwright

Job description

We're making energy fair, clean, and simple for all using technology.

Octopus Energy started with a bold idea: to build Britain’s first truly digital energy supplier. By combining world‑class tech with brilliant humans who care deeply about customers and driving the renewable energy transition, we made it happen and in 2025, we became Britain’s largest energy supplier.

Octopus Energy Group is a global energy transition collective. 10 businesses working across 4 continents to tackle energy transformation at nearly every front.

And we constantly push to make energy better. Tirelessly campaigning for fair protections for customers. And building innovative technologies that forge a path to a green energy system.

We’re made up of 10,000+ authentic, committed people working around the world on stuff you'd never expect. We're united by a shared goal: to drive the global green energy revolution. Read our Spotlight series to meet some of the team.

About the role

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.

We are looking for a Frontend Engineer to join our Onboarding team.

The Onboarding team owns the main entry points of consumers for OEGB, focusing on improving the current journeys and working in new projects impacting thousands of customers everyday. They work in a very open and fast-moving environment, focusing on the user experience with a strong human touch to everything they do. Onboarding is also a very collaborative team, working together with other developers and teams, strengthening our tech stack and influencing which paths OE takes in its tech journey.

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.

What you’ll have

• 3+ years of experience with our stack, listed below
• Experience taking problems, rather than strict guidelines, and developing strong solutions
• Confidence owning the development cycle (request, requirements gathering, technical proposal, technical execution, deployment and monitoring.)
• Confidence tackling large-scale tasks individually
• An empathetic approach to delegating work and collaborating with others
• The ability to develop websites that meet strong accessibility guidelines
• Experience building scalable, performant sites that handle high levels of traffic well

Our stack

• React
• TypeScript (desirable)
• Next.js on Vercel (desirable)
• GraphQL w/ Apollo (desirable)
• React Testing Library & Playwright

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 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! We were named the UK’s top company to work for in 2025, and we ranked in the top ten in the Sunday Times Best Places to Work 2026. Our Group CEO, Greg has recorded a podcast about our culture and how we empower our people. We’ve also been placed in the top 10 companies for senior leadership
• Visit our UK perks hub - Octopus Employee Benefits

P.S. 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 [e-mail] and we’d love to help!

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.