Java Developer (Banking)

Unison Consulting Pte Ltd; Singapore; On-site; SGD 70,000 - 100,000; Full time

Job summary

A prominent consulting firm in Singapore is seeking an experienced Backend Developer to design and develop secure backend systems using Java and Spring Boot. The role requires expertise in microservices architecture and a solid background in banking or financial services. The ideal candidate should have at least 5 years of experience and strong skills in RESTful APIs, database management, and cloud deployment.

Qualifications

• 5 years of experience in Java backend development.
• Strong expertise in Spring Boot, Spring MVC, Spring Security, and Microservices.
• Experience in banking/financial applications and payment systems.

Responsibilities

• Design, develop, and maintain scalable backend services using Java and Spring Boot.
• Build, secure, and integrate RESTful APIs with internal and third-party banking systems.
• Work on core banking modules and transaction management systems.

Skills

Java backend development

Spring Boot

Microservices

RESTful APIs

JSON/XML

Hibernate/JPA

MySQL/PostgreSQL

Git

Jenkins

Docker

CI/CD pipelines

Agile/Scrum

Tools

AWS

Azure

Maven/Gradle

Job description

Job Summary:

We are seeking an experienced Backend Developer with strong expertise in Java and Spring Boot, preferably with prior experience in the banking or financial services domain. The role involves designing and developing secure, high-performance backend systems and APIs to support mission-critical banking applications. The ideal candidate should have hands-on experience with microservices architecture, API integrations, and secure transaction processing.

Required Skills & Experience:

• 5 years of experience in Java backend development.
• Strong expertise in Spring Boot, Spring MVC, Spring Security, and Microservices.
• Experience in banking/financial applications, payment systems, or transaction-based platforms.
• Solid understanding of RESTful APIs, JSON/XML, and secure API communication.
• Proficient in Hibernate/JPA, MySQL/PostgreSQL, and database optimization.
• Experience with Git, Jenkins, Docker, and Maven/Gradle.
• Knowledge of CI/CD pipelines and cloud deployment (AWS/Azure).
• Familiarity with Agile/Scrum methodologies.

Key Responsibilities:

• Design, develop, and maintain scalable backend services using Java, Spring Boot, and Microservices.
• Build, secure, and integrate RESTful APIs with internal and third-party banking systems.
• Work on core banking modules, payment gateways, and transaction management systems.
• Implement data validation, encryption, and authentication mechanisms following banking security standards.
• Collaborate with business analysts, frontend developers, and QA teams to deliver robust and compliant solutions.
• Optimize backend performance and ensure high availability and reliability of services.
• Participate in code reviews, testing, CI/CD, and cloud deployment (AWS/Azure).
• Troubleshoot production issues and support live banking applications.