Senior Backend Engineer

Build the future of healthcare Healthcare is still largely reactive: people usually discover something is wrong only once symptoms appear. At Blue Health Intelligence, we intend to change that. We are building the operating system of preventive healthcare, helping people understand how to stay healthy. At our Amsterdam center, members complete a comprehensive 360° health check in around one hour, combining blood biomarkers, cardiovascular measurements, body composition and other health data with a doctor consultation and a digital health experience. Behind that hour is a lot of software. We run the centre ourselves, and our platform connects every instrument and lab system in it: staff drive the whole checkup from our own tools while the member moves through it, results feed in as they go, and we turn them into biomarkers, a report and the doctor's consultation. Each repeat visit adds to a member's record, so it builds into a longitudinal picture of their health rather than a one-off snapshot. The point is to give people a detailed, ongoing read on their own body: understand it and act before something becomes a problem. The role You'll own our backend platform end to end: the API and medical data model behind results and reports, the integrations with medical devices and labs, the cloud infrastructure it runs on, and the security around it. We work with health data in a regulated environment, which shapes how we build. We're TypeScript end to end: a Node.js GraphQL API backed by PostgreSQL, web and mobile clients in React and React Native, all in one monorepo, running on GCP and defined in Terraform. You'll work directly with the CTO in a small engineering team, with substantial influence over how we build and operate the platform. As the team grows, there is room to grow into a technical lead role. The people who use what you build are at our centre every day: doctors, nurses and members. Feedback on what you ship arrives in person. What you'll do Design and build the backend services, APIs and data model behind our member, medical and internal-facing products: health data that stays auditable and queryable across years of repeat visitsExtend and maintain our integrations with medical devices, lab systems and clinical partnersRun our cloud infrastructure and CI/CD, from deployments to backups and disaster recoveryHarden security and compliance across the platform: access control, audit logging, monitoring and incident responseKeep the platform reliable and performant as we grow from one centre to many What we're looking for 5+ years building and operating production backend systemsStrong TypeScript and Node.js, with solid API and data-model designExperience working with sensitive data and/or regulated systemsExperience running cloud infrastructure and securing production systems yourself, not through a platform teamComfortable owning systems end to end, incidents included, in a small teamThe right to work in the Netherlands Nice to have Healthtech or medtech experiencePast work integrating medical devices, labs or other clinical systems, and familiarity with the interoperability standards around themExperience as the first or only engineer owning infrastructure at a small companyFull-stack experience, although this is a primarily backend roleExperience preparing for security audits or certificationsExperience taking systems into new regions, including data residency and multi-region setups What we offer The opportunity to be part of a fast growing healthcare startup Working with a small and ambitious teamOn a mission to transform the healthcare systemA competitive salary A free Blue health checkHybrid working from our Amsterdam office Interested? Apply via LinkedIn with your CV. There will be an intro call, a technical interview with our CTO, a technical assessment and discussion built on a real problem from our domain, a visit to our centre to meet the team & founders.