Frontend Engineer (Mid-Level)

The Legends Agency; Cape Town; Hybrid; ZAR 300 000 - 400 000; Full time

Job summary

A sports technology innovator in Cape Town is seeking a Mid-Level Frontend Engineer to design and build web applications visualizing real-time sports data. The ideal candidate will have over 3 years of experience with JavaScript, TypeScript, and React, and will thrive in a hybrid work environment. This role offers substantial annual leave, enhanced parental leave, and a collaborative team atmosphere.

Benefits

Hybrid working model (2 to 4 days in the office per week)

Generous annual leave and occupational sick pay

Enhanced parental leave

Dedicated training budget

Team socials

Work-from-home allowance

Qualifications

• 3+ years of experience in frontend engineering using JavaScript and TypeScript.
• Strong proficiency in React or similar frameworks like Angular or Vue.
• Solid understanding of HTML5, CSS3, and responsive design principles.

Responsibilities

• Build and maintain performant, user-friendly web interfaces for sports tech products.
• Collaborate with product and design teams to enhance features.
• Develop interactive data visualizations for actionable performance insights.
• Write clean, maintainable code while participating in code reviews.

Skills

JavaScript

TypeScript

React

HTML5

CSS3

API integration

Responsive design

Git

Tools

Jest

Cypress

D3.js

Three.js

Babylon.js

Job description

Frontend Engineer (Mid-Level)

Join a global sports tech innovator transforming how the world experiences live sport.
Claremont, Cape Town | R60 000 to R80 000 per month | Hybrid working model

About Our Client

Our client is a fast-growing sports technology company on a mission to revolutionize professional sports through data-driven solutions and advanced tracking systems. Their cutting-edge products are used globally across rugby, soccer, American football, and Aussie rules, delivering real-time insights to broadcasters, officials, and athletes. With a multidisciplinary team and a record of world-first innovations, this is your chance to join a company at the forefront of sports performance analytics.

The Role: Mid-Level Frontend Engineer

You’ll design and build high-performance, low-latency web applications that visualize real-time athlete and ball-tracking data. This is a hands-on engineering role within a collaborative, cross-functional environment ideal for someone who wants to work on greenfield projects and contribute to technology shaping the future of live sports.

Key Responsibilities

• Build and maintain performant, user-friendly web interfaces for sports tech products
• Collaborate with product and design teams to implement and enhance features
• Develop interactive data visualizations that drive actionable performance insights
• Write clean, maintainable, and well-documented code while participating in code reviews
• Optimize UI/UX for responsiveness and scalability across multiple devices
• Integrate APIs and manage asynchronous data flows efficiently
• Support live system deployments as part of an on-call rotation

About You

• 3+ years of experience in frontend engineering using JavaScript and TypeScript
• Strong proficiency in React (or similar frameworks such as Angular or Vue)
• Solid understanding of HTML5, CSS3, and responsive design principles
• Experience with testing frameworks like Jest or Cypress
• Skilled in integrating APIs and using Git-based workflows and CI/CD pipelines
• (Bonus) Experience with real-time or 3D data visualization libraries (e.g. D3.js, Three.js, Babylon.js)
• (Bonus) Passion for or experience in sports technology, analytics, or wearable devices
• A proactive, collaborative mindset with an eye for detail and performance

Perks

• Hybrid working model (2 to 4 days in the office per week)
• Generous annual leave and occupational sick pay
• Enhanced parental leave and dedicated training budget
• Team socials and work-from-home allowance