Senior Software Engineer (Backend) - Berlin (x/f/m)

Join our mission, join Doctolib! What you'll do Join our new team dedicated to user rights and permission management. As a Senior Software Engineer, you will play a key role in leading the gold standard for access control on Doctolib's platform. Help protect sensitive user and financial data while enabling seamless workflows for healthcare professionals. As a Senior Software Engineer, your responsibilities include but are not limited to: Building Advanced Authorization Systems: Design and implement scalable authorization frameworks, including role-based and API-driven controls that support both clinical and financial features Modernizing Legacy Systems: Simplifying and cleaning up legacy access models (e.g., EHR authorizations), ensuring data protection and privacy compliance Cross-functional Collaboration: Working closely with product, legal, and data protection teams to deliver privacy-compliant solutions API Development: Building and maintaining robust APIs for permissions and authorization that enable broader platform integration Implementing access control for emerging roles like Medical Front Assistant and new Clinical Financial admin roles About our tech environment Our solutions are built on a single fully cloud-native platform that supports web and mobile app interfaces, multiple languages, and is adapted to the country and healthcare specialty requirements. To address these challenges, we are modularizing our platform run in a distributed architecture through reusable components. Our stack is composed of Rails, TypeScript, Java, Python, Kotlin, Swift and React Native. We leverage AI in an ethical manner across our products to empower patients and health professionals. Discover our AI vision here and learn about our first AI hackathon here! Who you are Before you read on, if you don't have the exact profile described below, but you feel this job description matches your skill set, we still encourage you to apply. Senior-Level Experience: 5+ years of full-stack software engineering experience within a cross collaborative environment API Development: Proven experience building and maintaining APIs for permissions/authorization systems Regulated Environments: Experience in access control, security, or authorization systems. ideally in healthcare, fintech, or other highly regulated domains Full-stack Mindset: Curiosity and willingness to work across both frontend and backend Independency in solving tech challenges: Ability to balance right solutions for the right tech problems. Technical Stack Scalable event driven Design: Demonstrated ability to design and implement scalable frameworks for complex user rights and permissions management. Experience in Kafka is optimal Proficiency in backend development, ideally in a tech stack similar to Doctolib’s What we offer A Deutschlandticket (Germany-wide public transport pass) fully paid for by Doctolib 28 vacation days + 1 additional day for each full calendar year of employment (up to a maximum of 30 days) Work from abroad for up to 10 days per year thanks to our flexibility days policy Company health insurance with great supplementary benefits through our partner Allianz Company pension scheme (bAV) through Allianz with an employer subsidy of 40% (15% within the probationary period) The Doctolib Parent Care program, which includes one month additional parental leave and much more Free mental health and coaching services through our partner Moka.care Subsidized sports membership through our partner Urban Sports Club A flexible workplace policy offering both hybrid and office-based mode Alongside healthy snacks and our regular breakfast buffet, we provide a subsidized meal benefit For caregivers and workers with disabilities, a package including an adaptation of the remote policy, extra days off for medical reasons, and psychological support Relocation support in case of international mobility The interview process Recruiter Interview Fe ... (truncated, view full listing at source)