Senior Software Engineer (Full Stack, Java, AWS)

EPAM Systems; Singapore; On-site; SGD 120,000 - 180,000; Full time

Job summary

EPAM Systems Inc. is seeking a Senior Software Engineer (Full Stack) to build cloud-native applications on AWS using Java, Spring Boot and React in a microservices setup. You will shape technical decisions, strengthen security and support data migration in a hybrid delivery team.

You will design, implement and test full stack features, APIs, and containerized services while collaborating with product, design and delivery teams to ensure high-quality releases.

Qualifications

• Strong Java and Spring Boot in production environments.
• Hands-on experience with microservices architecture and RESTful API design.
• Knowledge of ReactJS with JavaScript/TypeScript for front-end development.
• Experience with AWS services (S3, Lambda, API Gateway, DynamoDB).
• Proficiency with unit, integration and contract testing.
• Experience with Spring Batch and batch-oriented data processing.
• Familiarity with Docker and CI/CD pipelines.
• Understanding of secure coding, OAuth and security testing (SAST, SCA, VAPT).

Responsibilities

• Design, build and maintain full stack features using Java, Spring Boot and ReactJS.
• Develop RESTful APIs and integrate OAuth-based authentication and authorization.
• Implement microservices patterns including event-driven communication and Domain-Driven Design.
• Build batch processing and data migration solutions using Spring Batch and AWS Database Migration Service.
• Create automated tests across the stack including unit, integration and contract tests.
• Containerize services with Docker and support CI/CD pipelines.
• Partner with product, delivery and design teams to deliver usable, accessible interfaces.
• Contribute to technical decisions, code reviews, documentation and release readiness.

Skills

Java

Spring Boot

RESTful APIs

ReactJS

AWS

Docker

OAuth

Security testing

Tools

Spring Batch

AWS Database Migration Service

Docker

Job description

We are seeking a Senior Software Engineer (Full Stack, Java, AWS). You will build cloud-native applications on AWS using Java, Spring Boot and React in a microservices setup. You will shape technical decisions, strengthen security and quality gates and support data migration and modernization work in a hybrid delivery team.

Responsibilities

• Design, build and maintain full stack features using Java, Spring Boot and ReactJS
• Develop RESTful APIs and integrate OAuth-based authentication and authorization
• Implement microservices patterns including event-driven communication and Domain-Driven Design
• Build batch processing and data migration solutions using Spring Batch and AWS Database Migration Service
• Create automated tests across the stack including unit, integration and contract tests
• Containerize services with Docker and support continuous integration and deployment pipelines
• Partner with product, delivery and design teams to deliver usable, accessible interfaces
• Contribute to technical decisions, code reviews, documentation and release readiness

Requirements

• Strong Java and Spring Boot skill sets in production environments
• Hands-on experience with microservices architecture and RESTful API design
• Knowledge of ReactJS with JavaScript or TypeScript for Front-end development
• Experience with Amazon Web Services including services such as Amazon S3, AWS Lambda, Amazon API Gateway and Amazon DynamoDB
• Proficiency with testing practices including unit, integration and contract testing
• Experience with Spring Batch and batch-oriented data processing
• Familiarity with Docker containerization and continuous integration and deployment pipelines
• Understanding of secure coding, OAuth and security testing support (SAST, SCA, VAPT)