
Senior Java API Developer Role - Kuala Lumpur (Hybrid Model) - Only Malaysians
Unison Group · Kuala Lumpur, Federal Territory of Kuala Lumpur, Malaysia · Hybrid
Weak hiring record · median 67 days open
All reasons
- Open 180 days
- 53% of this employer's openings are over 60 days old
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.
- 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.
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
Skills
- Java
- Spring Boot
- OAuth 2.0
- JWT
- API Gateway
- Spring MVC
- Spring Security
- SQL
- MySQL
- PostgreSQL
- Oracle Database
- Hibernate
- JPA
- Git
- Maven
- Gradle
- Docker
- Machine Learning
More jobs at Unison Group
All 116- GCP Cloud Engineer - GCP & GKEUnison Group · Singapore5d ago
- AI DevSecOps EngineerUnison Group · Muscat, Muscat Governorate, Oman6d ago
- Teradata Data ArchitectUnison Group · Singapore · Kuala Lumpur, Federal Territory of Kuala Lumpur, Malaysia7d ago
- GenAI Architect - BankingUnison Group · Singapore7d ago
- Data Engineering Manager - Big DataUnison Group · Singapore11d ago
Similar roles
- Technical Lead -FullstackUvation · Romania · Serbia · Poland +2 · USD 6,000–8,000/motoday
- Lead Backend Engineer, Trading RiskBybit · Abu Dhabi, UAE · Kuala Lumpur, Malaysiatoday
- Product AI Application Backend EngineerBybit · Kuala Lumpur, Malaysiatoday
- Principal Platform Engineer - Financial CloudBybit · Kuala Lumpur, Malaysiatoday
- Senior Software Engineer (ADG System R&D)Emerson · Bayan Lepas, Pulau Pinang, Malaysiayesterday
- Pioneer Talent Program - Applied AI Agent/AI Productivity Engineer (Top Talent Program)Binance · Australia · Hong Kong · Malaysia +33d ago