Software Engineer [Java Core]

NCS; Singapore; On-site; SGD 70,000 - 110,000; Full time

Job summary

NCS in Singapore is seeking a detail-oriented Software Engineer with core Java expertise to design, develop, and maintain robust Java applications. You will collaborate with cross-functional teams to deliver scalable solutions that meet business objectives.

The role emphasizes code quality, architecture, and performance, with opportunities to work on government-linked projects (citizens only) and modern Java technologies, Spring Framework, and cloud platforms.

Qualifications

• 3+ years of professional Java development experience.
• Strong OOP and design pattern knowledge.
• Solid data structures, algorithms, and complexity understanding.
• Experience with Git and collaborative workflows.
• JUnit/Mockito experience and TDD practices.
• SQL knowledge and relational database design.
• Experience developing RESTful APIs and HTTP.
• Maven or Gradle build tools.
• Strong problem-solving and analytical mindset.
• Excellent communication and teamwork abilities.

Responsibilities

• Develop, test, and maintain high-quality Java applications.
• Design efficient algorithms and data structures.
• Write clean, well-documented code following standards.
• Conduct code reviews to ensure quality and consistency.
• Translate requirements into technical specs with stakeholders.
• Troubleshoot production issues and find root causes.
• Contribute to system design decisions in architecture discussions.
• Profile and optimize application performance.
• Document code, systems, and processes for knowledge sharing.
• Stay current with Java technologies and best practices.

Skills

Java development

Core Java

OOP & design patterns

Data structures & algorithms

Git version control

JUnit & Mockito

SQL & relational DB

REST APIs

Maven/Gradle

Problem-solving

Communication

Tools

Spring Framework

Spring Boot

Docker

Kubernetes

CI/CD tools

AWS/Azure/GCP

Job description

NCS is a leading AI Tech Services company. With a 15,000-strong team across the Asia Pacific, NCS scales its platforms and capabilities to provide clients with greater agility and AI expertise across a range of Industries. Embracing a strong ecosystem of global partners, NCS transforms technology services delivery combining AI with digital resilience to drive real business impact. NCS is a subsidiary of the Singtel Group.

Job Description

We are seeking a detail-oriented and analytical Software Engineer with expertise in Java Core to join our engineering team in Singapore. In this role, you will design, develop, and maintain robust Java applications while adhering to best practices in software architecture and code quality. You will work collaboratively with cross-functional teams to deliver efficient, scalable solutions that meet our business objectives.

What will you do?

• Develop, test, and maintain high-quality Java applications using core Java technologies and frameworks
• Design and implement efficient algorithms and data structures to solve complex technical problems
• Write clean, well-documented code following established coding standards and design patterns
• Conduct code reviews and provide constructive feedback to team members to ensure code quality and consistency
• Collaborate with product managers and stakeholders to understand requirements and translate them into technical specifications
• Troubleshoot and debug production issues, analyzing root causes and implementing effective solutions
• Participate in architectural discussions and contribute to system design decisions
• Optimize application performance through profiling, analysis, and implementation of performance improvements
• Maintain comprehensive documentation of code, systems, and processes for knowledge sharing
• Stay current with industry best practices and emerging Java technologies

Qualifications

The ideal candidate should possess

• 3+ years of professional experience in Java development with strong core Java expertise
• Advanced proficiency in object-oriented programming (OOP) principles and design patterns
• Solid understanding of data structures, algorithms, and computational complexity
• Experience with version control systems (Git) and collaborative development workflows
• Proficiency in unit testing frameworks (JUnit, Mockito) and test-driven development practices
• Knowledge of SQL and relational database design
• Experience developing RESTful APIs and understanding of HTTP protocols
• Familiarity with build tools such as Maven or Gradle
• Strong problem-solving skills and analytical mindset
• Excellent communication and teamwork abilities

Preferred Skills and Experience:

• Experience with Spring Framework and Spring Boot
• Knowledge of microservices architecture and distributed systems
• Familiarity with CI/CD pipelines and DevOps practices
• Experience with cloud platforms (AWS, Azure, or Google Cloud Platform)
• Understanding of multithreading, concurrency, and asynchronous programming
• Exposure to Agile/Scrum development methodologies
• Experience with containerization technologies (Docker, Kubernetes)
• Knowledge of message queues and event-driven architecture

Additional Information

Due to security clearance requirements for government-linked projects, this position is open to Singapore Citizens only.

We are driven by our AEIOU beliefs—Adventure, Excellence, Integrity, Ownership, and Unity—and we seek individuals who embody these values in both their professional and personal lives. We are committed to our Impact: Valuing our clients, Growing our people, and Creating our future.

Together, we make the extraordinary happen.

Learn more about us at ncs.co and visit our LinkedIn career site.