Senior Backend Engineer

Senior Backend Engineer #### About kaiko.ai Kaiko is building a next-generation agentic clinical AI assistant that helps clinicians reason across patient data, guidelines, and diagnostics. Healthcare decisions are rarely made by a single person or from a single data source. kaiko's assistant maintains longitudinal patient context across encounters, clinicians, and institutions, enabling collaboration, second opinions, and complex diagnostic workflows. The system is designed to operate safely in real clinical environments, with human oversight, auditability, and regulatory alignment at its core. Our assistant core supports broadly applicable clinical tasks such as patient data navigation, guideline interaction, multimodal interaction (chat and voice), and care coordination. On top of this foundation, we are developing specialized diagnostic agents in areas such as oncology, radiology, and pathology. We build in close collaboration with leading hospitals and research centers, including the Netherlands Cancer Institute (NKI). kaiko is a well-funded company with a growing international team, operating from Zurich and Amsterdam. #### About the role * The role sits within the team responsible for kaiko's core product: the agentic AI assistant that clinicians use to reason across patient data, guidelines, and diagnostics. * As we strive to offer a state-of-the-art system, our main challenge is ensuring that kaiko's product offers the best possible experience for our users, while maintaining strict compliance with all regulatory requirements of the medical field. * A Senior Backend Engineer takes ownership of shipping features, plays an active role in shaping technical requirements, and ensures that quality standards and product stability are maintained. You will be based in either The Netherlands or Switzerland, with the expectation of spending at least 50% of your time at the office. #### Some areas of responsibility * You will...