Java Spring Boot Backend Developer

1 week ago

Singapore PERSOLKELLY SINGAPORE PTE. LTD. Full time
Roles & Responsibilities

Employment Type: Contract

Location: Singapore (onsite at client office)

About the Role:

We are seeking a highly skilled Java Spring Boot Backend Developer to work on complex banking technology projects. The selected candidate will join our delivery team, deployed at a leading financial institution. This role demands strong hands-on development skills, deep knowledge of microservices architecture, and experience in cloud and CI/CD environments.

Key Responsibilities:

  • Design, develop, and maintain backend systems using Java 11/17 and Spring Boot.
  • Build scalable microservices with REST APIs and messaging frameworks (Kafka, MQ, RabbitMQ).
  • Implement event-driven architecture, asynchronous processing, and real-time data integration.
  • Work with CI/CD pipelines (Jenkins, Git, GitLab) and manage deployments on OpenShift/Kubernetes/Docker.
  • Integrate backend services with cloud platforms (AWS/Azure/GCP), storage solutions, and databases (MariaDB/MySQL).
  • Apply best practices in unit testing (JUnit, Mockito, TestNG), TDD, and clean coding.
  • Collaborate with cross-functional teams, perform peer reviews, and participate in Agile ceremonies.
  • Troubleshoot production issues, optimize performance, and ensure security/compliance.

Requirements:

  • Bachelor's degree in Computer Science, Engineering, or related field.
  • Minimum 8 years of backend development experience, with Java Spring Boot microservices.
  • Strong expertise in Kafka/MQ messaging systems, event-driven systems, and API design.
  • Hands-on experience with CI/CD (Jenkins, Git, GitLab) and containerization/orchestration (Docker, Kubernetes, OpenShift).
  • Proficiency with cloud environments (AWS/Azure/GCP) and relational databases (MariaDB/MySQL).
  • Strong exposure to banking/financial systems preferred.
  • Knowledge of Liquibase, QuickFixJ, or FIX protocol is a strong advantage.
  • Excellent problem-solving, communication, and stakeholder management skills.

Interested candidates, please click "APPLY" to begin your job search journey and submit your CV directly through the official PERSOLKELLY job application platform - GO Mobile.

We regret to inform you that only shortlisted candidates will be notified.

Gelangre Reyanelle Gelario | REG No : R

PERSOLKELLY SINGAPORE PTE LTD | EA License No : 01C4394

This is in partnership with Employment and Employability Institute Pte Ltd ("e2i"). e2i is the empowering network for workers and employers seeking employment and employability solutions. e2i serves as a bridge between workers and employers, connecting with workers to offer job security through job-matching, career guidance and skills upgrading services, and partnering employers to address their manpower needs through recruitment, training and job redesign solutions. e2i is a tripartite initiative of the National Trades Union Congress set up to support nation-wide manpower and skills upgrading initiatives. By applying for this role, you consent to e2i's PDPA .

By sending us your personal data and curriculum vitae (CV), you are deemed to consent to PERSOLKELLY Singapore Pte Ltd and its affiliates to collect, use and disclose your personal data for the purposes set out in the Privacy Policy available at You acknowledge that you have read, understood, and agree with the Privacy Policy.

Tell employers what skills you have
TestNG
TDD
Kubernetes
Pipelines
Unit Testing
Data Integration
Microservices
Protocol
JUnit
Spring Boot
Docker
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