ReactJS Developer

Helius Technologies Pte Ltd; Singapore; On-site; SGD 90,000 - 150,000; Full time

Job summary

Helius Technologies Pte Ltd in Singapore is seeking a skilled ReactJS Developer to drive frontend excellence across a micro‑frontend ecosystem. You will architect and optimize MFEs, coordinate with backend teams, and ensure seamless data sharing across host applications.

You will implement performance optimizations, integrate REST APIs, and contribute to CI/CD pipelines with Jenkins, GitHub Actions, or Azure DevOps.

Qualifications

• Proficient in ReactJS, Java (ES6+), HTML5 and CSS3.
• Deep experience with React Hooks, Redux, Context API and state management.
• Hands-on with Micro Frontend (MFE) architecture and Webpack Module Federation.
• Experience managing 100+ MFEs and Monorepo setups.
• REST API integrations and third-party app integration.
• CI/CD pipelines experience (Jenkins, GitHub Actions, Azure DevOps, GitLab CI/CD).
• Git version control and frontend testing with Jest/RTL.

Skills

ReactJS

Java (ES6+)

HTML5

CSS3

React Hooks

Redux

Context API

state management

Micro Frontend architecture

Webpack Module Federation

MFE management

Dynamic caching strategies

REST APIs

Nginx

IIS

CI/CD pipelines

Jenkins

GitHub Actions

Azure DevOps

GitLab CI/CD

Git

Jest

React Testing Library

Tools

Webpack Module Federation

Monorepo management

Shared module configuration

MFE navigation/data sharing

Multiple React MFE versions

Nginx

IIS

Jenkins

GitHub Actions

Azure DevOps

GitLab CI/CD

Git

Jest

React Testing Library

REST APIs integration

Job description

ReactJS Developer:

Key Technical Requirements

• Strong expertise in ReactJS, Java (ES6+), Type , HTML5, and CSS3
• Extensive experience with React Hooks, Redux, Context API, and state management
• Hands-on experience in Micro Frontend (MFE) architecture
• 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 optimization and dynamic caching strategies
• Strong experience integrating REST APIs and third-party applications
• Performance tuning of web servers such as Nginx and IIS
• Experience with CI/CD pipelines (Jenkins, GitHub Actions, Azure DevOps, GitLab CI/CD)
• Strong knowledge of Git and version control
• Experience with Jest, React Testing Library, or similar testing frameworks