Total 18 java developer job vacancies in Singapore

Experience Required

• 4–6 years hands-on experience in:
• Java, Spring Boot, Microservices
• Angular (UI)

Databases: MySQL, NoSQL, MariaDB

• Knowledge of:

• Test Driven Development (TDD)

  CI/CD pipelines

• Good understanding of software engineering best practices

2. Scope of Work Java Full Stack Developers who will be responsible for:

• Designing, coding, testing, and deploying scalable enterprise applications.
• Working on backend microservices and front-end Angular components.
• Participating in Agile ceremonies, code reviews, and CI/CD processes.
• Ensuring robust, maintainable, and secure code delivery for banking applications.

3. Deliverables

• Fully functional code modules as per sprint schedules.
• Technical documentation and unit test coverage.
• Support during SIT/UAT cycles.
• Fixes and enhancements as requested by the project team.

This role focuses on Java-based backend application development using Spring Boot, supporting business feature development, maintenance, and change requests. The developer will contribute to full SDLC activities including requirement translation, coding, testing, and production support.

This position is more application-focused, with strong emphasis on reusable component development, CI/CD processes, and structured delivery within a team environment. Payment transaction flow knowledge is advantageous but not mandatory.

Mandatory Skills

3+ years - Java Application Development – Strong hands-on experience developing enterprise backend applications using Java.

3+ years - Spring Boot Framework – Development of RESTful APIs, microservices, dependency injection, security configuration and transaction management.

2+ years - Red Hat Linux Environment – Experience deploying and supporting Java applications in Linux environments (RHEL).

2–3+ years - MySQL Database – Schema design, query optimization and transactional data handling.

2+ years - CI/CD & DevOps Tools – Hands-on experience with Bitbucket, Jenkins and Jira for version control, build pipelines and issue tracking.

2+ years - Functional & Technical Documentation – Experience writing technical specs, design documents and unit test plans.

2+ years - Application Integration & UAT Support – Participation in SIT, UAT and production deployment activities.

2+ years - Debugging & Production Support – Ability to troubleshoot pre-production and post-production issues.

Payment Systems Knowledge (Advantage) – Understanding of online transaction flows, authorization lifecycle and reconciliation processes. Good to have

Cryptography Algorithms (Advantage) – Basic understanding of encryption, hashing and secure communication protocols. Good to have

2+ years - Independent & Team Collaboration Skills – Ability to work in dynamic environments with minimal supervision.

This role focuses on core payment gateway backend development within a direct acquirer environment. The developer will design and maintain secure, high-availability systems that integrate with Visa, Mastercard, and other card schemes, ensuring compliance with PCI-DSS and scheme mandates. The role requires strong exposure to POS and e-commerce payment processing, Linux-based development, and high-performance transaction systems.

This is a mission-critical payments engineering role that directly supports authorization, settlement, and onboarding flows.

Mandatory Skills

3+ years Backend development experience in payment systems (POS & E-Commerce) – Hands-on experience building transaction processing systems covering authorization, settlement, reconciliation and onboarding flows.

2–3+ years Visa / Mastercard / International Card Scheme integration – Experience working with scheme specifications, ISO messaging, compliance mandates and certification processes.

3+ years Secure API & Payment Gateway Development – Design and implementation of scalable backend services supporting high transaction volumes.

2+ years PCI-DSS Compliance & Payment Security Standards – Knowledge of encryption, tokenization, secure key management and audit requirements.

3+ years C++ Development – Strong programming capability in C++ for backend system development.

2+ years Korn Shell Scripting – Ability to develop and maintain shell scripts in Linux environments for automation and batch processing.

3+ years Linux (RHEL/Open Systems) Development Environment – Deployment, troubleshooting and performance tuning in Red Hat Enterprise Linux environments.

3+ years Database Management (PostgreSQL / MySQL) – Schema design, performance tuning, query optimization in transactional systems.

Base24-eps knowledge (Advantage) – Familiarity with transaction switching platforms such as BASE24-eps.

2+ years Strong troubleshooting & production support experience – Ability to debug high-severity transaction failures in live environments.

Communication & Stakeholder Collaboration – Ability to work with QA, Frontend, business teams and scheme representatives.