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Unison Group

Senior Java API Developer Role - Kuala Lumpur (Hybrid Model) - Only Malaysians

Kuala Lumpur
Level
Senior

Not stated in the posting: salary, work type, visa.

Open. First seen 3 October 2026.

About the role

Skill: Java API Developer

Nationality Requirement: Malaysian Citizens Only

Role Overview

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 and technical design reviews.

· Implement API security standards (OAuth2, JWT, API Gateway policies).

· Ensure code quality through unit testing, integration testing, and code reviews.

· Mentor junior developers and promote engineering best practices.

· Contribute to CI/CD pipelines and DevOps improvements.

Requirements

· 5+ years of backend development experience.

· Strong expertise in Java (8/11/17+).

· Solid experience with Spring Boot, Spring MVC, Spring Security.

· Hands-on experience building RESTful APIs.

· Experience with microservices architecture.

· Strong knowledge of SQL (MySQL/PostgreSQL/Oracle) and ORM frameworks (Hibernate/JPA).

· Experience with API security (OAuth2, JWT).

· Familiarity with Git, Maven/Gradle.

· Experience working with Docker and CI/CD pipelines.

· Strong understanding of data structures, concurrency, and multithreading.

Benefits

Annual Leave (AL): Up to 21 days per year

Medical Leave (ML): 12 days per annum

Medical Coverage provided

Performance Bonus: 2 bonuses per year

Public Holiday Replacement Leave

Optical and Dental Coverage

What this role asks for

Particular to this role

Gradle · Hibernate · Maven · Microservices · MySQL · OAuth · Spring

Rare in Unison Group's other 132 open postings.

Standard for backend roles

Java · PostgreSQL

Common in backend postings at any company.

In most of Unison Group's ads

SQL

Named in most of its open postings, whatever the role.

Read against Unison Group's other open postings on this site.

The team: Noresh HIRES STEADILY

This role is one of 32 open in Noresh. 4 were posted in the last 30 days and the oldest in August: a team that hires all year rather than one being built.

WHAT THE TEAM WORKS WITH, ACROSS ITS POSTINGS

SQL (20 of 32), CI/CD (15 of 32), Azure (10 of 32), Oracle (9 of 32), REST (9 of 32), Agile (7 of 32), AWS (7 of 32)

OTHER ROLES ON THIS TEAM

From the team and dates on Unison Group's own job board.

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