Nadi Tech - Senior Specialist, Java Developer

TNG Digital; Kuala Lumpur; On-site; MYR 180,000 - 280,000; Full time

Benefits offered by this job

Medical coverage

Extra leave for family and caregiving

Monthly lifestyle allowance via TNG eW

Discounts and wellness perks

Job summary

Nadi Tech, part of TNG Digital Group, is hiring a senior Java developer in Kuala Lumpur to build scalable, high-performance applications for fintech and other large-scale platforms.

You will work on Java-based systems, microservices, and RESTful APIs, with focus on performance tuning, security, and reliability. The role offers mentorship opportunities and growth in a fast-paced fintech environment.

Qualifications

• 5+ years of Java development experience.
• Experience leading development teams or mentoring junior developers.
• Hands-on with performance tuning, optimization, and troubleshooting in high-throughput environments.
• Experience with microservices architecture and RESTful API development.
• Strong knowledge of automated testing frameworks (JUnit/TestNG/Mockito) and Java tooling.

Responsibilities

• Deliver high-quality, scalable, and secure Java-based applications aligned with business requirements.
• Ensure timely completion of development tasks and adherence to project timelines.
• Implement coding standards and conduct regular code reviews for security and quality.
• Optimize application performance to meet benchmarks for speed, scalability, and responsiveness.
• Develop and maintain comprehensive unit tests and collaborate with QA on automated testing strategies.
• Provide production support and incident management to minimize downtime.

Skills

Java

Spring/Spring Boot

OOP

RESTful APIs

Problem solving

Education

Bachelor’s degree in Computer Science/Software Engineering/IT

Tools

Jenkins

GitLab CI

Docker

Kubernetes

Hibernate/MyBatis

Job description

At Nadi Tech, part of TNG Digital Group, we build and run secure, high-performance digital infrastructure that powers essential services across Malaysia.

Our platforms support large-scale B2B and public sector initiatives used by millions of people every day. That means reliability, security, and performance are not nice‑to‑haves. They are built into everything we do from day one.

We are looking for people who enjoy solving complex, real-world problems. People who think in systems, understand how things connect, and take pride in building infrastructure that is stable, scalable, and built to last.

Here, you will take ownership of systems that matter and see your work used in real, everyday scenarios.

What You’ll Do

1. Application Development and Enhancement

• Deliver high-quality, scalable, and secure Java-based applications aligned with business requirements.
• Ensure timely completion of development tasks and adherence to project timelines.

2. Code Quality and Standards

• Implement and enforce coding standards and best practices, including writing clean, maintainable, and efficient code.
• Conduct regular code reviews to ensure compliance with security and quality standards.

3. System Performance and Optimization

• Optimize application performance to meet or exceed industry benchmarks for speed, scalability, and responsiveness.
• Monitor and resolve performance bottlenecks and ensure low-latency transactions.

4. Testing and Quality Assurance

• Develop and maintain comprehensive unit tests to ensure maximum test coverage and minimize bugs in production.
• Collaborate with the QA team to implement automated testing strategies and resolve issues.

5. Incident Management and Production Support

• Provide timely resolution of production issues and support incident management to minimize downtime and service disruption.
• Implement effective monitoring tools and alert systems to detect and address issues proactively.

6. Innovation and Continuous Improvement (For senior positions)

• Identify and implement new technologies, tools, and practices to enhance development efficiency and application performance.
• Drive innovation by proposing and implementing new features, optimizations, or improvements in line with fintech trends.

7. Mentorship and Team Development (For senior positions)

• Mentor and provide technical guidance to junior developers, enhancing their skills and knowledge.
• Support team members in problem-solving, performance improvement, and career development.

Role Requirements

• Bachelor’s degree in Computer Science, Software Engineering, Information Technology, or a related field.
• Certifications in Java, Cloud Computing or related technologies are a plus.
• Minimum of 5+ years of experience in Java development, with a focus on building and maintaining scalable, high-performance applications.
• Proven experience in leading development teams or mentoring junior developers.
• Hands‑on experience with performance tuning, optimization, and troubleshooting in a high‑throughput environment.
• Experience working in the fintech industry or on financial applications is highly desirable.
• Strong proficiency in Java and Java-based frameworks (e.g. Spring, Spring Boot).
• Solid understanding of object-oriented programming (OOP) principles and design patterns.
• Experience with microservices architecture and RESTful API development.
• Proficiency in database technologies (e.g. SQL, NoSQL databases) and ORM frameworks like Hibernate or MyBatis.
• Strong knowledge of automated testing frameworks and tools (e.g. JUnit, TestNG, Mockito).
• Familiarity with front-end technologies (e.g. Vue.js, Flutter) is a plus.
• Experience with DevOps practices, including CI/CD tools (e.g. Jenkins, GitLab CI), containerization & orchestration (e.g. Docker, Kubernetes), and cloud platforms (e.g. Alibaba Cloud, Microsoft Azure, Google Cloud Platform) is a plus.
• Strong analytical and problem-solving skills, with the ability to translate business requirements into technical solutions.
• Excellent communication and interpersonal skills, with experience collaborating across cross-functional teams.
• Ability to work in a fast-paced, agile environment and manage multiple priorities effectively.
• High attention to detail and commitment to delivering high-quality, reliable software.

What You Get

Work your way

• Medical coverage, with option to include dependants
• Extra leave for family and caregiving needs

Rewards that grow with you

• Monthly lifestyle allowance via TNG eWallet
• Long-term rewards for your contributions

Everyday support

• Mobile and broadband reimbursement
• Discounts and wellness perks

What it’s like to work here

We value people who take responsibility, think clearly, and care about doing things right.

You will be working with a team that is practical, collaborative, and focused on building things that hold up under real pressure.

Note: Only shortlisted candidates will be contacted.