Senior Full-Stack Engineer – React/Spring Boot, Cloud & AI

Avensys Consulting; Singapore; On-site; SGD 90,000 - 140,000; Full time

Job summary

Avensys is a reputed global IT professional services company headquartered in Singapore. We are currently looking to hire a Full Stack Developer to design, build, and maintain full‑stack applications using ReactJS (Vite) and Spring Boot.

The role requires strong REST API development, microservices, AWS, Docker, Gradle, Git, and unit testing, with 5+ years of hands‑on experience. You will join an agile, collaborative team delivering high‑quality software in an iterative environment.

Qualifications

• 5+ years of hands-on experience in Full Stack Development using ReactJS and Spring Boot.
• Strong experience in ReactJS, Spring Boot, JPA/Hibernate, and SQL.
• Proven experience in REST API development/integration and Microservices patterns.
• Hands-on experience with AWS services and good understanding of AWS fundamentals.
• Experience in application containerisation using Docker.
• Good experience with Gradle, Git, unit testing, and local API mocking.
• Exposure to AI agent development/integration is an added advantage.
• Good understanding of Agile/iterative delivery methodologies.

Responsibilities

• Design, develop, and maintain full-stack applications using ReactJS (Vite) and Spring Boot.
• Develop and integrate REST APIs and implement Microservices patterns.
• Implement data persistence and database operations using JPA and SQL.
• Develop and support AI-agent capabilities as part of the application.
• Work with AWS services and support cloud-based application development.
• Build and manage containerised applications using Docker.
• Perform unit testing and local API mocking to ensure application quality and reliability.
• Use Gradle and Git for build management and source code version control.
• Participate in an iterative delivery environment, contributing to continuous improvement.
• Work independently and take accountability for assigned deliverables.

Skills

ReactJS

Spring Boot

JPA/Hibernate

SQL

REST API development

Microservices

AWS

Docker

Gradle

Git

Unit testing

AI agent exposure

Tools

Docker

Gradle

Git

AWS

Job description

Avensys is a reputed global IT professional services company headquartered in Singapore. We are currently looking to hire a Full Stack Developer to design, build, and maintain full‑stack applications using ReactJS (Vite) and Spring Boot.

The role requires strong REST API development, microservices, AWS, Docker, Gradle, Git, and unit testing, with 5+ years of hands‑on experience. You will join an agile, collaborative team delivering high‑quality software in an iterative environment.