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Sr. Frontend Developer (ReactJS)

ARSquare Tech LLCUnited States🇺🇸United StatesPosted Sep 22, 2026

Quick Overview

Seniority
Mid Senior
Work mode
Hybrid
Location
United States
Posted
23 hours ago
MicroservicesGraphQLJavaScriptPlaywrightPythonRESTReactReduxTypeScriptVitest

Job Description

Job Title: Sr. Frontend Developer (ReactJS)

Work Mode: Remote

Exp: 12-15 years

Tech Stack React 18.2.0 TypeScript 5.9.2 ReduxRTK React Router Vitest Playwright

 

Mandatory Skills : Microservices, Python, React


We are looking for a skilled Frontend Engineer with strong hands-on experience in React and TypeScript to build highquality scalable and performant user interfaces You will work closely with product design and backend teams to deliver seamless experiences while ensuring code quality test coverage and modern best practices


Key Responsibilities
Develop responsive accessible and high-performance UI components using React 18.2.0 and TypeScript 5.9.2
Implement predictable state management using Redux Toolkit RTK and Redux best practices
Build and maintain application routing with React Router
Write reliable unit and component tests using Vitest with familiarity in Playwright for end-to-end testing
Collaborate with cross functional teams to translate requirements into high-quality features
Optimize rendering API interactions and overall frontend performance
Participate in code reviews maintain clean architecture and enforce coding standards
Troubleshoot UI issues and ensure smooth user experience across devices and browsers

Required Skills Qualifications
Strong experience with React v18 and modern TypeScript
Solid understanding of Redux Redux Toolkit and global state patterns
Experience with React Router for SPA navigation and routing flows
Proficiency with Vitest or other modern JavaScript testing frameworks
Familiarity with Playwright for automated end-to-end testing
Strong knowledge of ES6 HTML5 CSS3 and component driven architecture
Experience integrating REST APIs or GraphQL services
Ability to write clean maintainable and scalable code

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