SL2770 - Senior Java Backend Engineer

FPT Asia Pacific; Singapore; On-site; SGD 120,000 - 180,000; Full time

Benefits offered by this job

Health insurance

Flexible working hours

Job summary

FPT Asia Pacific in Singapore is seeking an experienced Senior Java Backend Engineer to support, maintain, and enhance our API and microservices ecosystem in a cloud-native AWS environment.

You will focus on BAU, ensuring stability, high availability, and performance, with hands-on Java development, AWS services, API integration, and production support.

Qualifications

• Minimum 8 years of hands-on Java backend development.
• Strong proficiency in Java 17+ and Spring Boot 3.x.
• Experience designing, developing, and supporting microservices and RESTful or GraphQL APIs.
• Hands-on AWS experience with ECS, EC2, and RDS.
• Experience with Infrastructure as Code (IaC) tools and practices.
• Strong CI/CD experience with GitLab, CodeCommit, and CodePipeline.
• Proficient in SQL, Oracle, and relational DB management.
• Experience with monitoring/logging using Grafana and CloudWatch.
• At least 3 years using Okta for authentication and authorisation.
• At least 3 years MuleSoft for API integration and middleware development.
• Strong understanding of production support, incident management, and RCA.
• Knowledge of security best practices and performance optimisation.

Responsibilities

• BAU support for Java microservices and APIs ensuring high availability and performance.
• Design, develop, and maintain scalable microservices using Java 17+ and Spring Boot 3.x.
• Manage and support AWS infrastructure including ECS, EC2, and RDS.
• Monitor performance using Grafana and AWS CloudWatch.
• Troubleshoot production issues and perform root cause analysis.
• Develop and maintain CI/CD pipelines with GitLab, AWS CodeCommit, and CodePipeline.
• Collaborate with cross-functional teams to deploy enhancements and ensure operations.
• Support authentication and authorisation integrations using Okta.
• Develop API integrations and middleware solutions using MuleSoft.
• Implement and maintain Infrastructure as Code (IaC).
• Ensure adherence to coding standards, security, and performance guidelines.
• Participate in incident management and continuous improvement initiatives.

Skills

Java backend

Java 17+

Spring Boot 3.x

Microservices design

REST/GraphQL APIs

AWS cloud services

CI/CD pipelines

GitLab CI/CD

SQL & Oracle

Monitoring: Grafana/CloudWatch

Okta authentication

MuleSoft integration

Production support

Security best practices

Docker

Kubernetes

IaC (Infrastructure as Code)

Tools

Docker

Kubernetes

Job description

Role Overview

We are seeking an experienced Senior Java Backend Engineer to support, maintain, and enhance our API and microservices ecosystem within a cloud-native AWS environment.

The successful candidate will focus on Business-as-Usual (BAU) support, ensuring system stability, high availability, performance optimisation, and continuous improvement of backend services. This role requires strong hands‑on experience in Java development, AWS cloud services, API integration, and production support.

Key Responsibilities

• Provide BAU support for Java-based microservices and APIs, ensuring high availability, reliability, and optimal system performance.
• Design, develop, maintain, and enhance scalable microservices using Java 17+ and Spring Boot 3.x.
• Manage and support cloud infrastructure hosted on AWS, including ECS, EC2, and RDS.
• Monitor application and infrastructure performance using Grafana, AWS CloudWatch, and other monitoring tools.
• Troubleshoot production issues, perform root cause analysis, and implement preventive measures.
• Develop, maintain, and optimise CI/CD pipelines using GitLab, AWS CodeCommit, and CodePipeline.
• Collaborate with cross‑functional teams to resolve technical issues, deploy enhancements, and ensure smooth system operations.
• Support authentication and authorisation integrations using Okta.
• Develop and maintain API integrations and middleware solutions using MuleSoft.
• Implement and maintain Infrastructure as Code (IaC) to support cloud infrastructure management.
• Ensure adherence to coding standards, security best practices, and performance optimisation guidelines.
• Participate in incident management, production support activities, and continuous improvement initiatives.

Requirements

• Minimum 8 years of hands‑on experience in Java backend development.
• Strong proficiency in Java 17+ and Spring Boot 3.x.
• Proven experience in designing, developing, and supporting microservices and RESTful or GraphQL APIs.
• Hands‑on experience with AWS services, particularly ECS, EC2, and RDS.
• Experience with Infrastructure as Code (IaC) tools and practices.
• Strong experience in implementing and managing CI/CD pipelines using GitLab, AWS CodeCommit, and CodePipeline.
• Proficiency in SQL, Oracle, and relational database management.
• Experience with application monitoring, logging, and troubleshooting using Grafana and AWS CloudWatch.
• Minimum 3 years of hands‑on experience with Okta for authentication and authorisation.
• Minimum 3 years of hands‑on experience with MuleSoft for API integration and middleware development.
• Strong understanding of production support, incident management, and root cause analysis.
• Good knowledge of software development best practices, application security, and performance optimisation.

Good to Have

• Experience with containerisation and orchestration technologies such as Docker and Kubernetes.
• Knowledge of cloud security best practices and AWS security services.
• Familiarity with Agile and Scrum methodologies.

Soft Skills

• Strong analytical, troubleshooting, and problem‑solving abilities.
• Ability to work effectively in a fast‑paced BAU and production support environment.
• Excellent communication, collaboration, and stakeholder management skills.
• Proactive attitude with a strong sense of ownership and accountability for production systems.
• Ability to work independently and collaboratively with cross‑functional teams.