Senior Software Engineer Android (m/f/d)

At least 7 years of experience in backend development, with proven expertise in Kotlin and PHP/Symfony, and the ability to work independently with both technologies You are experienced in building and scaling service-oriented architectures in a high-scale, high-traffic environment You enjoy working closely with frontend engineers, product managers, and designers As a Senior Engineer, we expect you to combine technical expertise with maturity in collaboration and ownership. You won't have direct reports, but your impact will shape how the team moves forward You are an effective communicator who values transparency and team spirit You are pragmatic: you prioritize shipping working solutions and iterating quickly You like contributing ideas, improving processes, and shaping better user experiences Bonus: you feel comfortable occasionally working on frontend tasks (Angular) Key Responsibilities: Design, build and maintain backend services with Kotlin and PHP (Symfony) Work on a high-traffic platform, optimizing for performance, stability and scale Ship fast, favoring MVPs and rapid iteration based on customer feedback Help improve our architecture and backend practices continuously Actively contribute ideas in technical discussions and cross-functional planning Collaborate closely with designers and frontend developers to build features from idea to production