Senior Java Backend Developer

Responsibilities

• Design, develop, and maintain scalable microservices using Spring Boot and/or Quarkus
• Build, publish, and manage APIs using IBM API Connect (APIC)
• Ensure high performance, security, and scalability of backend systems and APIs
• Collaborate with cross-functional teams including product, QA, and DevOps
• Troubleshoot, debug, and resolve production issues efficiently
• Follow best practices for clean code, testing, and system design

Requirements

• 5+ years of experience in Java backend development
• Strong hands-on experience with Spring Boot or Quarkus
• Experience working with IBM API Connect (APIC) and RESTful APIs
• Solid understanding of microservices architecture
• Familiarity with API security and performance optimization

Preferred Qualifications

• Experience in Open Banking or financial services domain
• Knowledge of OAuth2 and JWT authentication
• Hands-on experience with Docker, Kubernetes, and cloud platforms (AWS, Azure, or GCP)

Benefits

• Opportunity to work on scalable, enterprise-level systems
• Collaborative and growth-focused environment
• Exposure to modern technologies and architecture

About the Company

CodeNinja is a next-generation technology consulting firm specialising in AI-powered transformation, enterprise software delivery, and Quality Engineering. Headquartered in the Gulf region, CodeNinja partners with Tier-1 banks, government entities, and large enterprises to design, build, and run mission-critical technology programs.