Java Backend

Tanqeeb; Dubai; On-site; AED 300,000 - 520,000; Full time

Job summary

Tanqeeb in Dubai is seeking a Backend Developer with deep expertise in Java 21+, Spring Boot, and Quarkus to build high-performance backend services in a microservices architecture.

The role focuses on implementing secure stateless APIs with JWT, integrating Keycloak for IAM, and optimizing SQL/NoSQL data stores while collaborating with DevOps/SRE to deploy on OpenShift.

Qualifications

• Proficient in Java 17+ and ideally Java 21 with Spring Boot/Quarkus
• Hands-on with Keycloak for IAM and RBAC
• Experience with SQL/NoSQL databases and microservices

Responsibilities

• Design, develop, and maintain scalable microservices using Spring Boot and Quarkus.
• Integrate and manage Keycloak for authentication, authorization, and RBAC.
• Design, optimize, and query SQL/NoSQL databases efficiently.
• Implement secure, stateless APIs with JWT-based authentication.
• Conduct troubleshooting and root cause analysis for production issues.
• Optimize application performance (DB tuning, caching, async processing, profiling).
• Collaborate with DevOps/SRE teams to ensure scalable deployment on Openshift.
• Write clean, maintainable, and testable code with unit/integration tests.
• Participate in code reviews, design discussions.

Skills

Java 21+

Spring Boot

Quarkus

Keycloak

JWT/OIDC

PostgreSQL

MongoDB

Redis

Microservices

JWT-based auth

Job description

Location- Dubai

Experience- 8 to 10 years

NP-Immediate Joiner

We are seeking a Backend Developer with strong expertise in Java (21+), Spring Boot, and Quarkus to build and optimize high-performance, scalable, and secure backend services. The ideal candidate will have hands-on experience with Keycloak (IAM), databases (SQL/NoSQL), troubleshooting, and performance optimization in distributed microservices environments.

Key Responsibilities-

• Design, develop, and maintain scalable microservices using Spring Boot and Quarkus.
• Integrate and manage Keycloak for authentication, authorization, and RBAC.
• Design, optimize, and query SQL/NoSQL databases efficiently.
• Implement secure, stateless APIs with JWT-based authentication.
• Conduct troubleshooting and root cause analysis for production issues.
• Optimize application performance (DB tuning, caching, async processing, profiling).
• Collaborate with DevOps/SRE teams to ensure scalable deployment on Openshift.
• Write clean, maintainable, and testable code with unit/integration tests.
• Participate in code reviews, design discussions.

Required Skills & Experience-

• Strong proficiency in Java 17+ (preferably 21).
• Hands-on experience with Spring Boot and Quarkus.
• Solid understanding of Keycloak, OAuth2, OIDC, and JWT.
• Experience with RDBMS (PostgreSQL, MySQL) and NoSQL (MongoDB, Redis, Cassandra).
• Knowledge of microservices architecture, API gateways, and distributed systems.
• Proven skills in debugging, troubleshooting, and root cause analysis.
• Strong understanding of performance optimization (DB indexes, JVM tuning, async, caching).

Nice-to-Have-

• Experience with Reactive Programming.
• Knowledge of event-driven architectures.
• Exposure to observability tools (Grafana, Prometheus, APPD, OpenTelemetry).
• Prior work in high-throughput, low-latency enterprise applications.