Senior Backend Engineer

Summary: The role of the Senior Backend Engineer involves leading the architectural refinement, technical decision-making, and backend development for a project within a highly regulated environment where security and quality are paramount.

Responsibilities:
* Support the refinement and finalization of the solution architecture.
* Design interfaces and prototype integrations with external Swiss government systems.
* Prepare technical proposals for outstanding architectural decisions.
* Develop backend modules using Java and Quarkus.
* Design and implement REST APIs following OpenAPI standards.
* Implement integrations with external services and identity providers.
* Ensure high security standards, including authentication, encryption, audit logging, and OWASP compliance.
* Participate in technical reviews, architecture reviews, and code reviews.
* Collaborate with DevOps teams regarding deployments and infrastructure.
* Support other developers through technical guidance and mentoring.

Must Haves:
* Minimum 5 years of experience as a Senior Backend Engineer.
* Strong Java experience.
* Experience with Spring Boot (with a willingness to transition to Quarkus).
* Experience with modular architectures or microservices.
* Strong knowledge of PostgreSQL.
* Experience with REST APIs and OpenAPI.
* Experience with Docker and Kubernetes.
* Experience with OAuth2/OIDC and Identity Providers.
* Strong understanding of application security, OWASP Top 10, encryption and audit logging.
* Good English communication skills.

Nice to Haves:
* Understanding of DevOps practices, including Helm Charts and CI/CD pipelines.
* Experience with arc42 and ADRs.
* Experience in regulated industries.
* Experience with XBRL or similar reporting standards.
* Knowledge of high-availability and disaster recovery concepts.

Other Details:
* Category 1: Regulated Environment
* Category 2: Focus on Security and Quality