A dynamic energy provider is seeking a Senior Frontend Engineer. This company is a digital challenger in the energy market, making energy accessible and engaging for a modern, urban generation, offering customized tariffs and lifestyle products through an award-winning app.
The Role
- Develop and enhance central customer journeys for login, account management, billing, payments, and self-service features
- Build with Next.js/React and TypeScript using a component-oriented approach
- Design seamless web experiences across desktop and mobile devices
- Collaborate on React Native mobile app experiences to ensure consistent UX
- Integrate frontend applications with API-driven backends (GraphQL/REST)
- Implement schema-based typification and validation for reliable data processing
- Work closely with UX/UI design, backend, QA, and platform teams in Agile/Scrum setups
- Ensure performance, accessibility, and quality across various browsers and devices
What You'll Need
- Proven experience developing production-ready frontend applications with React/Next.js and TypeScript
- Strong foundational knowledge in frontend architecture, performance optimization, accessibility, and modern CSS
- An AI-native developer mindset, proficient with agent-driven workflows and tools like Claude Code or Cursor
- Experience with API-first platforms and authentication flows
- Pragmatic approach to testing and comfortable working in CI/CD-driven teams
- Strong communication skills in German and English, with a pronounced ownership mindset
- Experience with GraphQL (nice to have)
- Familiarity with mobile-first strategies (PWA) and/or cross-platform approaches (Flutter, React Native) or willingness to learn
What's On Offer
- A highly motivated team with flat hierarchies and short communication channels
- Flexible, hybrid work model with an office in the heart of Cologne
- Performance-based compensation and 30 days of annual leave
- Subsidized job tickets and free parking
Apply via Haystack today!
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