Senior Full-Stack Engineer

MANTU GROUP SA; Singapore; On-site; SGD 80,000 - 120,000; Full time

Job summary

A global technology consulting firm is seeking an experienced Fullstack Developer in Singapore to create interactive user interfaces with React.js and maintain backend services using Java and Spring Boot. This role requires a strong focus on both frontend and backend development and collaboration with diverse teams. Join us to make a significant impact in a thriving, supportive workplace.

Benefits

Continuous learning opportunities

Diverse workplace culture

Team-building events

Qualifications

• 5+ years of hands-on experience in fullstack development.
• Proficiency in React.js and modern frontend engineering.
• Strong understanding of RESTful APIs and system integration.

Responsibilities

• Develop rich and responsive user interfaces using React.js.
• Collaborate with UX/UI designers and backend engineers.
• Develop and maintain backend services using Java and Spring Boot.

Skills

React.js

Java

Spring Boot

PostgreSQL

MSSQL

TypeScript

HTML5

CSS3

Docker

Kubernetes

Tools

Webpack

Vite

CI/CD

Job description

Who are we?

Amaris Consulting is an independent technology consulting firm providing guidance and solutions to businesses. With more than 1,000 clients across the globe, we have been rolling out solutions in major projects for over a decade – this is made possible by an international team of 7,600 people spread across 5 continents and more than 60 countries. Our solutions focus on four different Business Lines: Information System & Digital, Telecom, Life Sciences and Engineering. We’re focused on building and nurturing a top talent community where all our team members can achieve their full potential. Amaris is your steppingstone to cross rivers of change, meet challenges and achieve all your projects with success.

At Amaris, we strive to provide our candidates with the best possible recruitment experience. We like to get to know our candidates, challenge them, and be able to give them proper feedback as quickly as possible. Here’s what our recruitment process looks like:

Brief Call: Our process typically begins with a brief virtual/phone conversation to get to know you! The objective? Learn about you, understand your motivations, and make sure we have the right job for you!

Interviews (the average number of interviews is 3 - the number may vary depending on the level of seniority required for the position). During the interviews, you will meet people from our team: your line manager of course, but also other people related to your future role. We will talk in depth about you, your experience, and skills, but also about the position and what will be expected of you. Of course, you will also get to know Amaris: our culture, our roots, our teams, and your career opportunities!

Case study: Depending on the position, we may ask you to take a test. This could be a role play, a technical assessment, a problem-solving scenario, etc.

As you know, every person is different and so is every role in a company. That is why we have to adapt accordingly, and the process may differ slightly at times. However, please know that we always put ourselves in the candidate's shoes to ensure they have the best possible experience.

We look forward to meeting you!

Job description

ABOUT THE JOB

• Develop rich, interactive, and responsive user interfaces using React.js, modern JavaScript (ES6+), and related frameworks.
• Implement reusable UI components and ensure seamless integration with backend APIs.
• Collaborate closely with UX/UI designers and backend engineers to deliver cohesive, user-centered experiences.
• Develop and maintain backend services using Java and Spring Boot microservices to support business logic and data processing.
• Design, develop, and integrate APIs (REST/OpenAPI) ensuring performance, scalability, and security.
• Contribute to all stages of the software lifecycle: architecture, implementation, deployment, and monitoring.
• Ensure strong automated test coverage across both frontend and backend (unit, integration, and E2E).
• Participate in building and improving CI/CD pipelines and scalable engineering workflows.
• Drive continuous improvement through code quality, automation, and engineering best practices.
• Explore and apply AI-driven development tools to improve engineering productivity and outcomes.

ABOUT YOU

• 5+ years of hands-on experience in fullstack development, with a strong focus on React.js and modern frontend engineering.
• Proficiency in React.js, TypeScript, HTML5, CSS3 (Sass, Tailwind, or Styled Components), and modern frontend build tools (Webpack, Vite, etc.).
• Solid experience with Java, Spring Boot, and microservices for backend development.
• Strong understanding of RESTful APIs, system integration, and distributed system design.
• Experience working with PostgreSQL and/or MSSQL databases.
• Familiarity with Docker, Kubernetes, and cloud platforms (AWS, GCP, or OCP preferred).
• Exposure to CI/CD tools such as Jenkins, SonarQube, Argo CD, and JFrog.
• Excellent problem-solving skills and a proactive, process-oriented approach.
• Passionate about clean code, maintainability, and delivering high-quality user experiences.

WHY AMARIS?

At Amaris Consulting, we believe in creating a thriving, positive workplace where every team member can grow, connect, and make a real impact. Here’s what you can expect when you join our dynamic community:

• Global Diversity: Be part of an international team of 110+ nationalities, celebrating diverse perspectives and collaboration.
• Trust and Growth: With 70% of our leaders starting at entry-level, we’re committed to nurturing talent and empowering you to reach new heights.
• Continuous Learning: Unlock your full potential with our internal Academy and over 250 training modules designed for your professional growth.
• Vibrant Culture: Enjoy a workplace where energy, fun, and camaraderie come together through regular afterworks, team-building events, and more.
• Meaningful Impact:Join us in making a difference through our CSR initiatives, including the WeCare Together program, and be part of something bigger.

Equal opportunity

Amaris Consulting is proud to be an equal opportunity workplace. We are committed to promoting diversity within the workforce and creating an inclusive working environment. For this purpose, we welcome applications from all qualified candidates regardless of gender, sexual orientation, race, ethnicity, beliefs, age, marital status, disability or other characteristics.