Senior Backend (Full-stack) Engineer

Rockstar Recruiting is exclusively hiring for a senior backend engineering role in Switzerland, focused on building the data infrastructure behind a next-generation clinical trial intelligence platform. This is a senior individual contributor role with a strong Java/Spring and PostgreSQL focus, owning major parts of the backend architecture, from APIs and data models to cloud integrations, while working closely with product, data, and frontend teams and contributing across the stack when needed.

The role is based in Zürich. As an international position, collaboration across time zones is expected. Please get in touch with Tijana of Rockstar Recruiting to discuss further details: [email protected]

Requirements

- Strong experience building and operating backend services in production, ideally with Java, Spring, and relational databases like Postgres.

- A solid understanding of system design, data modeling, and performance optimization for data-intensive applications.

- Experience working with cloud platforms (e.g., AWS) and containerized environments (e.g., Docker/Kubernetes).

- A track record of taking ownership of projects, from design through to deployment and maintenance.

- Ability and willingness to work across the stack when required to deliver high-quality product experiences.

- Clear communication, collaborative mindset, and enthusiasm for working in a fast-moving startup environment.

Responsibilities

- Design, build, and maintain backend services and APIs (primarily in Java/Spring) that power our clinical trial platform.

- Model, store, and query complex data efficiently in Postgres and related data systems.

- Implement and maintain integrations and pipelines that ingest and process data from multiple sources.

- Collaborate with frontend engineers to define API contracts and, when needed, contribute full-stack changes to ship complete features.

- Ensure high availability, observability, and security of backend services through monitoring, testing, and sound operational practices.

- Participate in technical planning, code reviews, and knowledge sharing to continuously improve the team’s effectiveness.