Frontend Engineer

Summary

Join Hawk-Eye Innovations as a Freelance Frontend Engineer and contribute to building data-rich, interactive UI platforms used globally in sports. You will design and build interactive UIs using React and TypeScript, transforming complex sports data into user-friendly experiences. Collaborate with backend, design, and data teams to deliver features, manage tasks using Jira, and contribute to UI architecture and performance optimization. The role requires strong experience with TypeScript and React, backend integration, and familiarity with testing frameworks. You will work on live match data, historic insights, and streaming overlays seen by millions. This is a freelance/contractor role, ideal for someone looking to embed within a collaborative, high-performance engineering team.

Requirements

• Strong experience with TypeScript and React
• Solid understanding of backend integration with APIs and websockets
• Familiarity with Cypress or other automated testing frameworks
• Proficient in HTML and CSS — with an eye for layout and detail
• Confident with browser and device testing, including debugging workflows
• Experience working with JSON data structures and consuming APIs (GET/POST)
• Good command of responsive web design and web performance optimisation
• Effective npm dependency management
• Comfortable using Git for version control and clean code practices
• Experience using Jira for task and ticket management

Responsibilities

• Designing and building interactive UIs using React and TypeScript
• Turning complex sports data into clean, usable experiences
• Working closely with backend, design, and data teams to ship features
• Scoping, estimating, and managing your own tasks using Jira
• Contributing to UI architecture, performance optimisation, and release workflows
• Writing clean, testable code with a focus on maintainability and clarity
• Collaborating with our Principal and Lead Engineers on frontend best practices
• Scoping and managing project tasks from requirements
• Identifying and managing dependencies within a project — across disciplines and external teams
• Managing code releases across environments (Dev, Test, Staging, Prod)
• Writing high-quality code that is functional, maintainable, and easy for others to extend
• Taking pride in the detail and finish of the final product, and encouraging the same from others
• Communicating clearly and regularly to ensure the right solutions are being built
• Continuously developing your own technical expertise and staying up to date with best practices
• Sharing ideas, tools, and techniques to support the growth and knowledge of the wider team

Preferred Qualifications

• Node.js / AWS experience or comfort working full-stack
• Passion for sport, data visualisation, or interactive tech
• Familiarity with performance profiling and Lighthouse
• Experience working in broadcast, sports tech, or time-sensitive UI systems