Immediate opportunity for Senior Front-End Software Engineer for Remote

Role: Senior Front-End Software Engineer

Location – Los Angeles,, CA | NYC

Work Mode - Remote

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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.

What You’ll Do:

·       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

Required Qualifications:

·       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.

Skills

Mandatory Skills : React 18 and TypeScript, HTML/HTML5, React, Redux and Redux Toolkit (RTK)