[Job-28465] Senior Java Developer, Brazil

We are seeking a Senior Java Developer to transform business requirements into robust, maintainable backend services, aligned with architecture standards and Agile delivery processes.

Key Responsibilities:

Design, build, and maintain backend services using Java 21, Spring Boot and Hawkbit.
Implement and evolve REST and gRPC APIs following best practices and versioning standards.
Ensure service reliability through unit/integration tests, troubleshooting, and root-cause analysis.
Work with PostgreSQL (schema design, performance tuning) and integrate with caching layers (Redis).
Build and debug containerized services using Docker and deploy them on Kubernetes (GKE).
Apply security fundamentals: OAuth2/OIDC, JWT validation, RBAC, and secure coding practices.
Collaborate with cross-functional teams, ensuring clear communication and ownership of deliverables.
Contribute to CI/CD workflows (Tekton/Jenkins, ArgoCD) and follow GitOps principles.
Participate in technical discussions, design reviews, and mentor team members when needed.

Required Skills and Qualifications:

Advanced English
Strong experience with Java (21) and Spring Boot in production systems.
Solid understanding of REST APIs and familiarity with gRPC concepts.
Hands-on experience with OAuth2/OIDC, JWT, and backend security fundamentals.
Proficiency with PostgreSQL and JPA/Hibernate.
Practical experience with Docker and Kubernetes (deployments, debugging, ConfigMaps/Secrets).
Ability to troubleshoot distributed systems, analyze logs, and diagnose performance issues.
Effective communication, transparency, and resilience working in fast-paced, multicultural teams.

Nice-to-have Skills:

Kafka or other event-driven technologies.
Proficiency in NoSQL databases
Redis (caching, ephemeral data).
Experience with GitOps (ArgoCD), Tekton pipelines, or Helm/Kustomize.
Exposure to GCP services (GKE, IAM, Cloud Logging/Monitoring).
Basic understanding of OPA or policy-based access control.
Knowledge of WebSockets or streaming APIs.
Background in prototyping or integrating AI-driven automation.