Senior Frontend Engineer responsible for enhancing customer interactions across web and mobile platforms for an energy provider in Germany. Focus on usability, performance, and scalability in development.
Responsibilities
Responsible for the development and continuous improvement of customer-facing experiences on a modern digital platform across web and mobile
Build and maintain central customer journeys such as login, account management, billing & payments, and self-service features
Develop with Next.js / React and TypeScript using a component-driven approach
Design web experiences that work seamlessly on desktop and mobile devices
Collaborate on mobile app experiences (e.g., Flutter, React Native)
Integrate frontend applications with API-driven backends (GraphQL / REST)
Requirements
Several years of experience developing production-ready frontend applications with React / Next.js and TypeScript
Strong frontend fundamentals: component architecture, performance optimization, accessibility, and modern CSS
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 and a pronounced ownership mindset
Benefits
Dynamic, exciting, and flexible working environment
A highly motivated team with flat hierarchies and short communication lines
Office in the heart of Cologne with hybrid working options
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