Senior Front-End Developer (React.js)

ATS Client; Johannesburg; On-site; ZAR 900,000 - 1,300,000; Full time

Job summary

ATS Client is seeking a Senior Front-End Developer to design, develop, and maintain enterprise-grade front-end applications using React.js. You will translate business requirements into clean, reusable code and build responsive, scalable interfaces.

The role involves collaborating with cross-functional teams, delivering in an Agile environment, and mentoring junior developers while contributing to architecture, performance, and security improvements.

Qualifications

• 5+ years of software development experience.
• 3+ years hands-on React application development.
• Experience working within Agile development teams.

Responsibilities

• Design, develop, and maintain front-end applications using React.js
• Translate business and user requirements into clean, efficient, reusable code
• Build responsive, scalable, and high-performance user interfaces
• Integrate front-end applications with RESTful APIs and backend services
• Ensure code quality through code reviews, testing, and best practices
• Provide technical guidance and mentorship to junior developers
• Contribute to application architecture and technical design decisions
• Promote best practices in front-end performance, scalability, and security
• Participate in sprint planning, effort estimation, and technical discussions
• Work closely with Product Owners, UI/UX Designers, Back-End Developers, and QA teams
• Support Agile delivery frameworks (Scrum / SAFe)
• Troubleshoot, debug, and resolve production issues
• Drive continuous improvement of development standards, tooling, and processes

Skills

React.js

JavaScript (ES6+)

HTML5

CSS3

Redux

Context API

REST APIs

Webpack

Vite

Git

Responsive design

Cross-browser compatibility

Education

Degree or Diploma in Computer Science, Information Systems

Equivalent practical experience

Job description

Job Description

We are looking for a highly skilled Senior Front-End Developer with strong expertise in React.js to join a dynamic technology team. This role is ideal for someone passionate about building scalable, high-performance user interfaces and contributing to modern digital product development.

The successful candidate will play a key role in designing, developing, and enhancing enterprise-grade front-end applications while collaborating with cross-functional teams in an Agile environment.

Key Responsibilities

Software Development

• Design, develop, and maintain front-end applications using React.js
• Translate business and user requirements into clean, efficient, reusable code
• Build responsive, scalable, and high-performance user interfaces
• Integrate front-end applications with RESTful APIs and backend services
• Ensure code quality through code reviews, testing, and best practices

Technical Leadership

• Provide technical guidance and mentorship to junior and intermediate developers
• Contribute to application architecture and technical design decisions
• Promote best practices in front-end performance, scalability, and security
• Participate in sprint planning, effort estimation, and technical discussions

Collaboration & Delivery

• Work closely with Product Owners, UI/UX Designers, Back-End Developers, and QA teams
• Support Agile delivery frameworks (Scrum / SAFe)
• Troubleshoot, debug, and resolve production issues
• Drive continuous improvement of development standards, tooling, and processes

Requirements

Technical Skills

• Strong hands‑on experience with React.js
• Solid proficiency in JavaScript (ES6+), HTML5, and CSS3
• Experience with state management libraries such as Redux or Context API
• Strong experience consuming and integrating REST APIs
• Familiarity with modern front‑end build tools such as Webpack or Vite
• Strong knowledge of Git and version control practices
• Good understanding of responsive design principles and cross-browser compatibility

Experience

• Minimum 5+ years of software development experience
• Minimum 3+ years of hands‑on React application development
• Experience working within Agile development teams
• Exposure to enterprise or large-scale application environments (advantageous)

Advantageous Skills

• Experience with TypeScript
• Experience with Next.js or similar front-end frameworks
• Exposure to cloud platforms (Azure / AWS)
• Knowledge of automated testing frameworks (Jest, Cypress)
• Experience within financial services or regulated industries

Qualifications

• Degree or Diploma in Computer Science, Information Systems, or related field
• Equivalent practical experience will also be considered

Key Competencies

• Strong problem-solving and analytical thinking
• Excellent communication and collaboration skills
• Ability to work independently and take ownership of deliverables
• Strong attention to detail and quality-driven mindset
• Adaptability in a fast-paced delivery environment