Senior ReactJS Developer

Quantum infotech Solutions; Singapore; On-site; SGD 120,000 - 160,000; Full time

Job summary

Quantum infotech Solutions in Singapore seeks a highly experienced Frontend Engineer to lead frontend development across multiple MFEs. You will drive architecture decisions, implement robust UI components, and ensure scalable, high-performance web applications.

The ideal candidate has 8+ years in frontend development with deep expertise in ReactJS, TypeScript, state management, and REST API integration, alongside CI/CD and modern web tooling.

Qualifications

• Bachelors degree in CS/IT or related field.
• 8+ years frontend development experience.
• Strong ReactJS, JavaScript (ES6+), TypeScript, HTML5, CSS3 proficiency.
• Experience with React Hooks, Redux, Context API, and state management.
• Hands-on with Micro Frontend (MFE) architecture.
• Good knowledge of AI Suite/Platform & Deep Agents.
• Deep expertise in Webpack Module Federation and managing MFEs.
• Monorepo management and shared module configuration.
• Excellent REST API integration and third-party apps.
• CI/CD pipelines experience (Jenkins, GitHub Actions, Azure DevOps, GitLab CI/CD).
• Web server tuning (Nginx, IIS), and strong Git skills.
• Jest, React Testing Library or similar frameworks.

Skills

8 years Frontend Development

ReactJS

JavaScript (ES6+)

TypeScript

HTML5

CSS3

React Hooks

Redux

Context API

Micro Frontend (MFE) Architecture

AI Suite/Platform & Deep Agents

Webpack Module Federation

Monorepo Management

REST APIs Integration

CI/CD (Jenkins, GitHub Actions, Azure/

Nginx

IIS

Git

Jest / React Testing Library

Education

Bachelor's Degree in Computer Science, IT or relevant field

Tools

ReactJS

JavaScript (ES6+)

TypeScript

HTML5

CSS3

React Hooks

Redux

Context API

Micro Frontend (MFE)

Webpack Module Federation

Monorepo Management

REST APIs

CI/CD Tools

Nginx

IIS

Git

Jest / RTL

Job description

Key Technical Requirements

• Bachelors Degree in Computer Science, IT or relevant field


• Must have 8 years of experience in Front-end Development


• Strong expertise in ReactJS, JavaScript (ES6+), TypeScript, HTML5, and CSS3


• Extensive experience with React Hooks, Redux, Context API, and state management


• Hands-on experience in Micro Frontend (MFE) architecture


• Good knowledge in AI Suite/Platform & Deep Agents


• Deep expertise in Webpack Module Federation, including:


• Managing 100+ Micro Frontends


• Monorepo management


• Shared module configuration across MFEs


• Navigation and data sharing between MFEs


• Managing multiple React MFE versions within host applications


• Experience with React performance optimizationanddynamic caching strategies


• Strong experience integrating REST APIsand third-party applications


• Experience with CI/CD pipelines(Jenkins, GitHub Actions, Azure DevOps, GitLab CI/CD)
  


• Performance tuning of web servers such as NginxandIIS


• Strong knowledge of Gitand version control


• Experience with Jest, React Testing Library, or similar testing frameworks