Software Engineer Java/Kotlin (x/f/m)
External
Doctolib · Berlin, GermanyFull-timeOn-site1mo ago
IAMJavaJavaScriptKafkaKotlinPython
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Responsibilities
- We are looking for a Software Engineer to join the Identity and Access Management team.
- Your responsibilities include but are not limited to:
- Develop and maintain secure authentication and authorization services that scale across millions of users
- Design and build modern OIDC authentication flows on Keycloak that handle security-critical traffic across Doctolib's platform
- Lead large-scale migrations of authentication journeys to the new IAM stack, ensuring zero-downtime rollouts and measurable improvements in scalability, security, and developer experience
- Build high-performance backend features using Java/Kotlin and Springboot, working with event-driven architectures (Kafka)
- Collaborate with product managers, designers, and engineers across teams to deliver secure, user-first solutions
- Contribute to frontend implementations using React (TypeScript/JavaScript) to create seamless user experiences
- Bring your expertise to continuously improve our engineering practices, code quality, and system reliability.
Requirements
- 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.
- You'll be a great fit if you:
- You have at least 4+ years of software engineering experience as a developer
- You have strong backend development skills with Java or Kotlin and experience with distributed systems
- You are willing to learn and work with Ruby on Rails
- You are willing to work on frontend development with React
- You have a "user first" mindset and want to build products focused on bringing value through secure, well-tested, and pragmatic code
- You are proactive, curious, collaborative, and eager to learn
- You integrate AI into your daily workflow
- You are fluent in English (German is a plus)
- Life at Doctolib Tech
- Our solutions are built on a single fully cloud-native platform that supports web and mobile app interfaces, multiple languages, and is adapted to country and healthcare specialty requirements.
- Our stack is composed of Rails, TypeScript, Java, Python, Kotlin, Swift, and React Native.
- We leverage AI ethically across our products to empower patients and health professionals. Discover our AI vision here .
- Want to learn more about our tech culture and environment? Visit the Doctolib Tech site .
Benefits
A Deutschlandticket (Germany-wide public transport pass) fully paid for by Doctolib28 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 policyCompany health insurance with great supplementary benefits through our partner AllianzCompany 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 moreEnrollment in Doctolib's long-term employee value sharing plan called DoctoGrowthFree mental health and coaching services through our partner Moka.careSubsidized sports membership through our partner Urban Sports ClubA flexible workplace policy offering both hybrid and office-based modeAlongside healthy snacks and our regular breakfast buffet, we provide a subsidized meal benefitFor caregivers and workers with disabilities, a package including an adaptation of the remote policy, extra days off for medical reasons, and psychological supportRelocation support in case of international mobilityAccess to the best AI tools for coding, development and dedicated trainingOur interview processRecruiter InterviewFeature Building InterviewSystem Design InterviewBehavioral InterviewAt least one reference checkWe want your experience to be clear, respectful, and transparent. Learn more about our hiring process on our candidate experience page .Job detailsPermanent positionTech stack: Java, Kotlin, Ruby on Rails, ReactFull-timeLocation: Berlin, GermanyWorking mode: HybridStart date: as soon as possibleWe welcome everyoneAt Doctolib, we are committed to improving access to healthcare for everyone. This translates into our recruitment process. We evaluate candidates based solely on qualifications and motivation, without any form of discrimination.The more diverse ideas are heard, the more our product will truly improve healthcare for all. You are welcome to apply to Doctolib, regardless of your gender, religion, age, sexual orientaHealth insuranceVision insurancePaid time offRemote work optionsFlexible scheduleParental leave
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