Senior Java Backend Engineer - Payments & Microservices

NETS; Singapore; On-site; SGD 180,000 - 260,000; Full time

Job summary

The NETS Group is a leading payments services group enabling digital payments for merchants, consumers and banks across the entire payments value chain.

The NETS Group operates Singapore's national debit scheme enabling customers of major banks to pay with cards or mobile devices at over 130,000 points and online. We seek a senior backend engineer to lead design, development and delivery of high‑throughput payment systems in a regulated setting.

Qualifications

• Bachelor's degree in Computer Science, IT, Software Engineering, or related field.
• 8–10 years in application development, senior developer or tech lead.
• Strong Java 17+, Spring Framework and Spring Boot proficiency.
• Experience with microservices, RESTful APIs, distributed systems.
• Hands-on with Linux/RHEL, databases (MySQL/PostgreSQL), SSL/TLS.
• Familiarity with CI/CD, Git, Jenkins, Maven/Gradle, Docker, Kubernetes.
• Knowledge of PCI-DSS, security controls, secure coding, and observability.

Responsibilities

• Lead requirement analysis, design, estimation, planning and implementation for UPOS & DA initiatives.
• Translate requirements into functional/technical specs meeting security and performance needs.
• Develop secure, scalable backend apps using Java, Spring Boot, REST APIs; ensure low latency.
• Review architecture, code, database design, and deployment approaches for quality and resilience.
• Mentor developers, conduct design reviews, and promote best practices and knowledge sharing.
• Create documentation including designs, specifications, tests, and deployment procedures.
• Coordinate with QA, DevOps, cybersecurity, production support, vendors and banks.

Skills

Java 17+

Spring Framework

Spring Boot

Microservices

RESTful APIs

Low-latency systems

Agile/Waterfall

Problem solving

Technical leadership

Education

Bachelor's degree in Computer Science or related

Tools

Git

Jenkins

JIRA

Maven/Gradle

Docker

Kubernetes

OpenShift

MySQL/PostgreSQL

AWS

Job description

The NETS Group is a leading payments services group enabling digital payments for merchants, consumers and banks across the entire payments value chain.

The NETS Group operates Singapore's national debit scheme enabling customers of major banks to pay with cards or mobile devices at over 130,000 points and online. We seek a senior backend engineer to lead design, development and delivery of high‑throughput payment systems in a regulated setting.