SL2639 - Java Microservices API Developer

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

Job summary

FPT Asia Pacific is seeking an experienced Java Backend Developer to design, develop, and maintain scalable backend services, APIs, and microservices in a cloud-native AWS environment in Singapore.

You will work on secure, high-performing systems, integrating with enterprise platforms, and contributing to production support, incident resolution, and continuous improvement across the SDLC with cross-functional teams.

Qualifications

• 7+ years of Java backend development experience.
• Strong hands-on experience with Java 17+ and Spring Boot 3.x.
• Experience with microservices and REST/GraphQL APIs.
• Hands-on with AWS ECS/EC2/RDS.
• Experience with GitLab, AWS CodeCommit, and AWS CodePipeline.
• Experience with Infrastructure-as-Code and cloud deployment.
• Strong knowledge of SQL and Oracle databases.
• Experience with Okta authentication and MuleSoft integrations.
• Good understanding of cloud security, monitoring, and scalable design.

Responsibilities

• Design and develop Java-based microservices and REST/GraphQL APIs using Java 17+ and Spring Boot 3.x.
• Build scalable, secure, high-performance backend applications and services.
• Develop integrations with MuleSoft, Okta, and other enterprise systems.
• Deploy and manage applications on AWS services including ECS, EC2, and RDS.
• Develop and maintain CI/CD pipelines using GitLab, AWS CodeCommit, and AWS CodePipeline.
• Implement Infrastructure-as-Code and support cloud deployment activities.
• Work with SQL and Oracle databases, including query optimisation.
• Monitor and troubleshoot applications using Grafana and AWS CloudWatch.
• Participate in production support, incident resolution, RCA, and continuous improvement.
• Collaborate with architects, DevOps, QA, and business teams throughout SDLC.

Skills

Java 17+

Spring Boot 3.x

Microservices

REST/GraphQL APIs

AWS services

CI/CD tools

Infrastructure as Code

SQL & Oracle

Okta authentication

MuleSoft integrations

API integrations

Cloud security & monitoring

Tools

Docker

Kubernetes

Job description

Role Overview

We are looking for an experienced Java Backend Developer to design, develop, and maintain scalable backend services, APIs, and microservices within a cloud-native AWS environment.

The role will focus on developing robust, secure, and high-performing backend solutions, integrating with enterprise platforms and third-party systems, and continuously improving application reliability, scalability, security, and performance.

The developer will also contribute to production support, troubleshooting, incident resolution, and continuous improvement of existing services.

Key Responsibilities

• Design and develop Java-based microservices and REST/GraphQL APIs using Java 17+ and Spring Boot 3.x.
• Build scalable, secure, and high-performance backend applications and services.
• Develop integrations with MuleSoft, Okta, and other enterprise systems.
• Deploy and manage applications on AWS services, including ECS, EC2, and RDS.
• Develop and maintain CI/CD pipelines using GitLab, AWS CodeCommit, and AWS CodePipeline.
• Implement Infrastructure-as-Code (IaC) and support cloud deployment activities.
• Work with SQL and Oracle databases, including query optimisation and application performance tuning.
• Monitor and troubleshoot applications using Grafana and AWS CloudWatch.
• Participate in production support, incident resolution, root cause analysis (RCA), and continuous improvement initiatives.
• Collaborate with architects, DevOps, QA, and business teams throughout the software development lifecycle (SDLC).

Required Skills & Experience

• 7+ years of Java backend development experience.
• Strong hands-on experience with Java 17+ and Spring Boot 3.x.
• Strong experience developing microservices and REST/GraphQL APIs.
• Hands-on experience with AWS services, particularly ECS, EC2, and RDS.
• Experience with CI/CD tools and platforms, including GitLab, AWS CodeCommit, and AWS CodePipeline.
• Experience with Infrastructure-as-Code and cloud deployment.
• Strong knowledge of SQL, Oracle, and relational databases.
• Experience with Okta authentication and authorisation.
• Experience with MuleSoft and API integrations.
• Good understanding of cloud security, monitoring, application performance, and scalable application design.

Good to Have

• Experience with containerisation and orchestration technologies such as Docker and Kubernetes.
• Exposure to security best practices within cloud environments.
• Familiarity with Agile and Scrum methodologies.
• Soft Skills
• Strong problem-solving and analytical skills.
• Ability to work effectively in a fast-paced environment.
• Excellent communication and stakeholder management skills.
• Proactive mindset with strong ownership of production systems.