Backend Engineer (Mobile Banking)

Recruit Express Pte Ltd; Singapore; On-site; SGD 120,000 - 180,000; Full time

Job summary

Recruit Express Pte Ltd requires a senior Java developer to design, build, and govern scalable microservices in a banking context. You will implement secure REST APIs, event-driven patterns, and containerized deployments using Docker and Kubernetes/OpenShift.

The role emphasizes architecture input, HA design, and active participation in Agile Scrum, with responsibilities spanning CI/CD, testing, and production support.

Qualifications

• Banking experience is highly preferred.
• 8–12+ years of software development experience.
• Strong expertise in Java (8/11/17/21).
• 5+ years of hands-on experience with Spring Boot and microservices.
• Strong experience designing REST APIs.
• Experience with distributed systems and event-driven architectures.
• Hands-on experience with Kafka, JMS/IBM MQ, or RabbitMQ.
• Experience with Docker and Kubernetes/OpenShift.
• Strong SQL skills with Oracle, PostgreSQL, or MySQL.
• Experience with JPA/Hibernate.
• Familiarity with CI/CD pipelines using Jenkins and Git.
• Strong debugging and performance tuning skills.
• Experience working in Agile development environments.

Responsibilities

• Design, develop, and maintain scalable Java-based microservices using Spring Boot and Spring Cloud.
• Build secure RESTful APIs and integrate with internal and external banking systems.
• Develop event-driven applications using Kafka, JMS/IBM MQ, or RabbitMQ.
• Design and implement Spring Batch jobs for large-scale data processing and reconciliation.
• Deploy and manage containerized applications using Docker and Kubernetes/OpenShift.
• Participate in architecture discussions and contribute to system design for high-availability distributed systems.
• Implement authentication and authorization using Spring Security, JWT, OAuth2, and mTLS.
• Optimize application performance, scalability, and reliability.
• Collaborate with DevOps teams to implement CI/CD pipelines using Jenkins, Git, Helm, and related tools.
• Produce API documentation using OpenAPI/Swagger.
• Monitor production environments using Prometheus, Grafana, ELK, Splunk, or similar observability tools.
• Participate in SIT, UAT, production deployments, and post-production support.
• Conduct code reviews and mentor junior developers.
• Ensure coding standards, test coverage, and quality through SonarQube, JaCoCo, JUnit, and Mockito.
• Work in Agile Scrum teams, participating in sprint planning, daily stand-ups, and retrospectives.
• Any other ad hoc duty provided by the supervisor

Skills

Java

Spring Boot

Microservices

REST APIs

Kafka

JMS/IBM MQ

RabbitMQ

Spring Cloud

Docker

Kubernetes

OpenShift

Spring Security

JWT

OAuth2

mTLS

SQL

JPA/Hibernate

CI/CD

Jenkins

Git

OpenAPI/Swagger

JUnit

Mockito

SonarQube

JaCoCo

Agile Scrum

Testing

Monitoring

Education

Bachelor's degree

Tools

Docker

Kubernetes

OpenShift

Jenkins

Git

Helm

Prometheus

Grafana

ELK

Splunk

Swagger

OpenAPI

Jira

SonarQube

JaCoCo

JUnit

Mockito

Job description

Key Responsibilities

• Design, develop, and maintain scalable Java-based microservices using Spring Boot and Spring Cloud.
• Build secure RESTful APIs and integrate with internal and external banking systems.
• Develop event-driven applications using Kafka, JMS/IBM MQ, or RabbitMQ.
• Design and implement Spring Batch jobs for large-scale data processing and reconciliation.
• Deploy and manage containerized applications using Docker and Kubernetes/OpenShift.
• Participate in architecture discussions and contribute to system design for high-availability distributed systems.
• Implement authentication and authorization using Spring Security, JWT, OAuth2, and mTLS.
• Optimize application performance, scalability, and reliability.
• Collaborate with DevOps teams to implement CI/CD pipelines using Jenkins, Git, Helm, and related tools.
• Produce API documentation using OpenAPI/Swagger.
• Monitor production environments using Prometheus, Grafana, ELK, Splunk, or similar observability tools.
• Participate in SIT, UAT, production deployments, and post-production support.
• Conduct code reviews and mentor junior developers.
• Ensure coding standards, test coverage, and quality through SonarQube, JaCoCo, JUnit, and Mockito.
• Work in Agile Scrum teams, participating in sprint planning, daily stand-ups, and retrospectives.
• Any other ad hoc duty provided by the supervisor

Requirement

• Banking experience is highly preferred
• 8–12+ years of software development experience.
• Strong expertise in Java (8/11/17/21).
• 5+ years of hands-on experience with Spring Boot and microservices architecture.
• Strong experience designing REST APIs.
• Experience with distributed systems and event-driven architectures.
• Hands-on experience with Kafka, JMS/IBM MQ, or RabbitMQ.
• Experience with Docker and Kubernetes/OpenShift.
• Strong SQL skills with Oracle, PostgreSQL, or MySQL.
• Experience with JPA/Hibernate.
• Familiarity with CI/CD pipelines using Jenkins and Git.
• Strong debugging and performance tuning skills.
• Experience working in Agile development environments.