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React Developer Job at Weekday (YC W21) in New York

Weekday (YC W21) · New York, NY, USA ·

Pay:
$140,000-$220,000/yr
Job type:
Full Time

Location: New York City, NY
Experience: 2–8 years
Employment Type: Full-time
Compensation: $140,000 – $220,000 per year + bonus/equity


About the Role


We are looking for a talented and experienced React Developer to join our engineering team in New York City. You will be responsible for designing, developing, and maintaining high-quality web applications using React and modern frontend technologies.


The ideal candidate combines strong technical expertise with a product-oriented mindset and has a passion for creating fast, scalable, accessible, and intuitive user experiences. You will work closely with product managers, designers, backend engineers, and other stakeholders to turn ideas into reliable, production-ready applications.


Key Responsibilities



  • Build and maintain scalable, high-performance web applications using React.js.

  • Develop reusable, modular, and maintainable frontend components.

  • Translate product requirements and UI/UX designs into responsive applications.

  • Write clean, efficient, and well-tested JavaScript/TypeScript code.

  • Work closely with designers and product managers to deliver polished user experiences.

  • Integrate frontend applications with RESTful and GraphQL APIs.

  • Implement state management using tools such as Redux, Zustand, Context API, or similar technologies.

  • Optimize applications for performance, accessibility, responsiveness, and cross-browser compatibility.

  • Develop reusable component libraries and contribute to design-system initiatives.

  • Write unit, integration, and end-to-end tests for critical application functionality.

  • Identify, troubleshoot, and resolve frontend bugs and performance issues.

  • Participate in code reviews and contribute to frontend engineering standards.

  • Collaborate with backend and platform engineers on end-to-end technical solutions.

  • Stay current with emerging React, JavaScript, and frontend development practices.


Must-Have Skills



  • 2–8 years of professional experience in frontend or React development.

  • Strong hands-on experience with React.js.

  • Excellent knowledge of JavaScript/TypeScript, HTML5, and CSS3.

  • Strong understanding of React hooks, component architecture, and state management.

  • Experience building responsive and production-grade web applications.

  • Experience integrating REST APIs and/or GraphQL.

  • Strong understanding of frontend performance optimization.

  • Experience with Git and modern software development workflows.

  • Familiarity with frontend testing frameworks such as Jest, React Testing Library, Cypress, or Playwright.

  • Strong problem-solving and debugging skills.

  • Ability to work effectively in a fast-paced, collaborative engineering environment.


Nice-to-Have Skills



  • Experience with Next.js and server-side rendering.

  • Experience with Redux, Zustand, React Query, or similar state-management tools.

  • Familiarity with Tailwind CSS, Material UI, Styled Components, or similar frameworks.

  • Experience building and maintaining design systems.

  • Knowledge of Node.js and backend development.

  • Experience with AWS, GCP, or Azure.Familiarity with CI/CD pipelines and cloud deployment.

  • Experience with WebSockets or real-time applications.

  • Knowledge of accessibility standards such as WCAG.

  • Experience working on AI-powered products, SaaS platforms, fintech applications, or other high-scale products.


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