Senior Java API Developer

Flintex Consulting Pte Ltd • Kuala Lumpur, 14 • Posted May 25, 2026

Position Overview

Position Summary We are looking for a highly skilled Senior Java API Developer to design, develop, and optimize scalable backend services and RESTful APIs. You will play a key role in architecting secure, high-performance systems, mentoring junior developers, and driving engineering best practices across the team. This role requires strong hands-on coding ability, architectural thinking, and experience building production-grade APIs in cloud or enterprise environments. Key Responsibilities Design, develop, and maintain scalable RESTful APIs and microservices using Java and Spring Boot. Architect secure, high-availability backend systems with performance optimization in mind. Implement clean, testable, and maintainable code following SOLID principles. Optimize application performance, troubleshoot bottlenecks, and resolve production issues. Collaborate with frontend developers, DevOps, QA, and product teams to deliver high quality features. Participate in architecture discussions ...