React.js Developer

Datacentrix; Johannesburg; On-site; ZAR 500,000 - 700,000; Part time

Job summary

A leader in the mining sector is seeking a React.js Developer in Johannesburg to create high-performance web applications. The ideal candidate has over 5 years in front-end development and 3 years with React.js. You will work collaboratively with teams to deliver innovative solutions that enhance user experience. This contract position offers a unique opportunity to contribute to significant projects in the industry.

Qualifications

• 5+ years hands-on experience in front-end development.
• 3+ years of hands-on experience with React.js.
• Excellent problem-solving and communication skills.

Responsibilities

• Develop and maintain scalable, high-performance web applications using React.js.
• Collaborate with UX/UI designers and backend developers.
• Optimize applications for maximum speed and scalability.

Skills

Hands-on experience in front-end development

Proficiency in JavaScript (ES6+)

Experience with React.js

Strong knowledge of HTML5 and CSS3

Experience with state management libraries

Familiarity with RESTful APIs

Understanding of Git workflows

Education

Matric and relevant IT qualification

Tools

Webpack

Babel

Vite

Jest

Cypress

Job description

Overview

Are you ready to bring your expertise to one of the most innovative names in the mining sector?

We’re seeking a highly skilled React.js Developer on contract to play a key role in building cutting-edge web applications that support mission-critical operations. In this contract role, you'll collaborate with cross-functional teams to deliver high-performance, scalable solutions that enhance user experience across the business.

If you're passionate about clean code, modern JavaScript, and making a real impact—this is your chance to work on meaningful projects that drive industry transformation.

Requirements

• Matric and relevant IT qualification
• 5+ years hands-on experience in front-end development.
• 3+ years of hands-on experience with React.js and its core principles.
• Strong proficiency in JavaScript (ES6+), HTML5, and CSS3.
• Experience with state management libraries (e.g., Redux, Zustand, MobX).
• Familiarity with RESTful APIs and asynchronous request handling.
• Knowledge of modern front-end build pipelines and tools (Webpack, Babel, Vite).
• Experience with testing frameworks (Jest, React Testing Library, Cypress).
• Understanding of Git workflows and version control.
• Excellent problem-solving and communication skills.

Responsibilities

• Develop and maintain scalable, high-performance web applications using React.js.
• Collaborate with UX / UI designers, product managers, and backend developers to deliver seamless user experiences.
• Architect and implement reusable components and front-end libraries.
• Optimize applications for maximum speed and scalability.
• Conduct code reviews and provide constructive feedback to team members.
• Stay up-to-date with emerging trends and technologies in front-end development.
• Ensure cross-browser compatibility and responsiveness across devices.
• Troubleshoot and debug complex issues.
• Demonstrate strong initiative as a self-starter, with the ability to work independently and manage tasks with minimal supervision.