Backend Developer (NodeJS)
Summary
Backend developer who owns the Node.js/TypeScript back office of a healthcare product connecting patients, insurers and doctors, integrating external insurance APIs and SSO, with automated/manual testing in a small autonomous Madrid-based team (hybrid, 2 office days).
We are working with a leading French health-tech group, one of the major players in information systems for the Healthcare sector, with close to 6,000 employees across more than 10 countries.
This position is part of a small, highly operational team working on a product that connects patients, insurance companies and doctors, particularly specialists.The product integrates with external insurance company APIs as well as internal corporate modules, including single sign-on.
We are looking for a Backend Developer to join a small, close-knit team and take ownership of backend development, working with a high degree of autonomy.
Responsibilities
Develop (not just maintain) the back office of the product, using Node.js.
Work autonomously within a small team, making technical decisions independently.
Integrate and maintain connections with external APIs (insurance companies) and internal modules (corporate services, single sign-on).
Collaborate closely with the Product Owner and QA, and coordinate occasionally with other internal teams on authentication-related topics.
Participate in integration testing, combining automated and manual testing practices.
Use AI tools daily to support development (e.g., Copilot, Cursor AI).
Requirements
Solid experience as a Backend Developer with Node.js and TypeScript.
Working knowledge of SQL / relational databases (MariaDB or similar).
Familiarity with Docker, Kubernetes and Git.
Experience integrating external APIs and working with authentication/SSO flows is a plus.
Knowledge of Angular is a plus.
Ability to work autonomously and take technical decisions without close supervision.
Fluent Spanish (required). English is valued. French is not required but considered a strong plus.
What is offered
Hybrid model: 2 days in the office.
Flexible working hours.
23 days of vacation.
Training.
Medical assurance.