Backend Engineer

Codeninja

We are looking for an experienced Backend Engineer with strong expertise in Java (11+), Quarkus or Spring Boot, and microservices architecture.

This role requires hands-on experience with containerization (Docker), orchestration (Kubernetes), and CI/CD pipelines (GitLab), along with a deep understanding of RESTful APIs and modern backend engineering practices.

Key Responsibilities:

• Design, develop, and maintain scalable microservices using Quarkus or Spring Boot.
• Develop and integrate RESTful APIs with internal and external systems.
• Deploy, monitor, and manage services in OpenShift (OCP) and GCP environments.
• Implement and maintain CI/CD pipelines using GitLab for automated build, test, and deployment processes.
• Containerize applications using Docker and manage deployments through Kubernetes.
• Ensure high availability, reliability, performance, and security of backend services.
• Collaborate with cross-functional teams for solution design, architecture reviews, and performance tuning.
• Participate in code reviews, technical discussions, and best practice implementations.

Required Skills & Qualifications:

• 5+ years of experience in backend development with Java 11+.
• Strong knowledge of Spring Boot and/or Quarkus frameworks.
• Proven experience in designing and building RESTful APIs.
• Hands-on experience with microservices architecture and distributed systems.
• Experience with Docker, Kubernetes, and OpenShift (OCP).
• Familiarity with GCP services for application deployment and scaling.
• Experience with GitLab CI/CD pipelines for automated delivery.
• Strong understanding of SQL and NoSQL databases (e.g., PostgreSQL, MongoDB, etc.).
• Good understanding of software security, authentication, and API gateway patterns.

Good to Have:

• Experience with Kafka or RabbitMQ for messaging and event-driven systems.
• Familiarity with Keycloak, OAuth2, or other authentication/authorization mechanisms.
• Knowledge of monitoring and observability tools (e.g., Grafana, Prometheus, ELK Stack).
• Exposure to GraalVM or Quarkus native builds for performance optimization.
• Experience with Agile/Scrum development methodologies.