Senior Software Engineer – Backend for Frontend

**You will design, build, and operate Backend\-for\-Frontend services for a modern e\-banking solution, ensuring frontend applications are optimally, securely, and efficiently integrated with backend systems.** **Responsibilities** * Develop and evolve BFF services for web and mobile frontends * Design and implement APIs (REST / GraphQL) * Aggregate and orchestrate backend services for frontend needs * Ensure performance, stability, and security to e\-banking standards * Work closely with frontend, backend, security, and architecture teams * Code reviews and adherence to development and security guidelines * Participate in agile development processes (Scrum / Kanban) **Requirements** * 5\+ years of backend development experience * Solid experience with Backend\-for\-Frontend architectures * Strong skills in API design and implementation * Experience with authentication and authorization concepts * Understanding of frontend technologies and their requirements * Experience in security\-critical systems (e\-banking a plus) * German\-speaking * Solid banking domain experience (required) **What We Offer** We believe in creating an environment where you can thrive professionally and personally. Here’s what you can expect: * Health Insurance Allowance for peace of mind * Annual Performance Bonus to reward your impact * A collaborative, international work culture with opportunities for continuous learning and growth