> Markdown version of [/jobs/ext/4630355-frontend-engineer](https://www.wearedevelopers.com/jobs/ext/4630355-frontend-engineer). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Frontend Engineer - **Company:** Worldat Octopus Energy - **Location:** Madrid, Spain - **Contract:** Permanent contract - **Skills:** Cascading Style Sheets (CSS), Django Web Framework, Python (Programming Language), Octopus Deploy, Next.js, TypeScript, Backend, Graphql, Front End Software Development, React Testing Library, JestJS - **Published:** November 8, 2026 - **Apply:** https://www.adzuna.es/details/5957585259 ## About the Role Our priorities adapt to real-world needs, meaning the pace is fast and the feedback cycle is satisfyingly quickThrive in an agile culture:Enjoy flat hierarchies and an open environment that fosters innovation, flexibility, and creativityStay 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 soCome as you are:At Octopus, we believe that diverse teams build better products. We foster an open, collaborative environment where authentic communication and mutual support are key. If you love to connect, share ideas, and solve complex problems alongside a supportive team, you'll fit right in.What you'll need to thriveFluent 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:Strong, proven experience as a Senior Frontend Engineer, with a solid grasp of modern frontend architectureDeep expertise in TypeScript and ReactHands-on experience with Next.Js, ideally hosted on VercelExperience working with GraphQL as a data layerComfort with CSS-in-JS solutions (experience with PandaCSS is a plus)Solid testing practices using tools like Vitest, React Testing Library, and PlaywrightExperience working within a monorepo structureA flexible, collaborative mindset and comfort working in a fast-paced, evolving environmentNice to have:Interest or experience in Backend development, particularly Python (Django)Familiarity with PostgreSQLA Fullstack mindset: curiosity about the full picture, not just the frontend layerWhy Join Us? ## Description 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:Collaborate internationally:Work closely with Octopus Energy ES and various global teams to develop and integrate new featuresOwn key product modules:Contribute directly to the private area, bill management, saving sessions, customer onboarding optimization, and marketing dashboards, all from a frontend perspectiveDrive fast-paced impact:Deliver code that directly impacts customers.