Senior Backend Java Developer - Hybrid Lisbon (Training & Health)
IRIUM Portugal
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Benefits offered by this job
Job summary
IRIUM Portugal is seeking a Senior Backend Java Developer to join an international technology project focused on scalable enterprise applications and modern microservices architectures. You will design, develop and maintain high-performance backend services in Java with Spring Boot, integrating RESTful and GraphQL APIs, and ensuring security with OIDC/RBAC.
The ideal candidate has 8+ years in Java backend, deep knowledge of microservices, CI/CD, and experience with relational databases.
Qualifications
- 4+ years of professional Java backend development (Confirmed)
- 8+ years of professional Java backend experience (Senior)
- Strong Java, Spring Boot and microservices experience
- Designing scalable, secure backend services
- RESTful and GraphQL APIs with OpenAPI/Swagger docs
- Auth solutions including Keycloak, Okta, OIDC and RBAC
- Event-driven architectures and messaging (AWS SQS, Solace)
- SQL and relational databases
- Automated testing, Git, code reviews, CI/CD
- SonarQube and Snyk for quality & security
- Agile and DevOps practices
- React integration with frontend
- Portuguese and English at C1; resident in Portugal
- Nice-to-have: AWS, Kubernetes, performance optimization, ADRs
- Mentoring and technical knowledge-sharing
- Experience with international teams
Skills
Tools
Job description
IRIUM Portugal is seeking a Senior Backend Java Developer to join an international technology project focused on scalable enterprise applications and modern microservices architectures. You will design, develop and maintain high-performance backend services in Java with Spring Boot, integrating RESTful and GraphQL APIs, and ensuring security with OIDC/RBAC.
The ideal candidate has 8+ years in Java backend, deep knowledge of microservices, CI/CD, and experience with relational databases.
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