About the role

We’re looking for a Senior Front-End Software Engineer to help build and optimize a streaming application used across various devices.
This role is ideal for someone who cares deeply about performance and knows how to keep complex applications fast and stable on resource-constrained devices.

Build and maintain front-end features using React 18 and TypeScript
Develop predictable and maintainable state management using Redux and Redux Toolkit (RTK)
Identify, measure, and resolve performance bottlenecks related to rendering, memory usage, and application startup
Debug and mitigate JavaScript memory leaks in long-running applications

Strong experience with React and TypeScript
Experience managing application state with Redux and RTK
Familiarity with client-side routing patterns using React Router
Solid understanding of front-end fundamentals (HTML, CSS, modern JavaScript)
Experience with performance optimization - debugging, measurement, and implementation (e.g., profiling, monitoring, or performance tooling)
Understanding of browser internals, rendering behaviour, or performance bottlenecks in large SPAs
Ability to work collaboratively in a cross-functional team

For tech stack, this is what they currently use so understanding of these would be good:

React 18.2.0 & TypeScript 5.9.2
State Mgmt.: Redux, RTK
Routing: React Router
Testing: Vitest, Playwright (familiarity is fine)
Preferred: Someone who has experience in app performance, measuring it, looking into things like debugging JS memory leaks.

Senior Front-End Software Engineer