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Frontend Developer – React JS (W2 only)

Marlabs LLCEnglewood Cliffs, NJ🇺🇸United States

Quick overview

SeniorityMid Senior
Work modeOn Site
LocationEnglewood Cliffs, NJ, United States
Material UIMicroservicesNext.jsGitHTMLAWSScrumAnt DesignCSSCypressGraphQLPlaywrightReduxTailwind CSSViteWebpackRESTAzureReactJavaScriptTypeScriptAgileCI/CD

Job description

Frontend Developer – React JS

Location: Onsite
Experience: 5+ years of software development experience, including 1+ years of experience on Next.js development

Job Summary

We are looking for a Senior Frontend Developer with strong expertise in React.js, JavaScript/TypeScript, and modern frontend development. The candidate should be capable of designing and developing scalable, responsive, and maintainable web applications while collaborating closely with backend, UX/UI, QA, and product teams.

Key Responsibilities

  • Design, develop, and maintain scalable web applications using React.js.

  • Build reusable React components, hooks, and frontend libraries.

  • Develop applications using JavaScript ES6+ and TypeScript.

  • Integrate frontend applications with REST APIs and backend services.

  • Manage application state using Redux, Redux Toolkit, Context API, or equivalent approaches.

  • Implement responsive user interfaces using HTML5, CSS3, Flexbox, Grid, and modern styling frameworks.

  • Optimize application performance, rendering, and page-load experience.

  • Troubleshoot production issues and perform root-cause analysis.

  • Perform code reviews and ensure frontend coding standards and engineering best practices are followed.

  • Collaborate with UX/UI designers, backend engineers, QA, product owners, and other stakeholders in an Agile/Scrum environment.

  • Provide technical guidance to other developers and contribute to frontend architecture and design decisions.

Required Skills

  • Strong hands-on experience with React.js, Next.js

  • Strong proficiency in JavaScript ES6+ and TypeScript

  • Excellent understanding of React Hooks, component lifecycle, functional components, and reusable component design

  • Experience with Redux / Redux Toolkit or similar state-management solutions

  • Strong knowledge of HTML5, CSS3, responsive web design, Flexbox, and CSS Grid

  • Experience consuming and integrating RESTful APIs

  • Working knowledge of Git and modern CI/CD development practices

  • Experience with frontend build/tooling ecosystems such as npm, Vite, or Webpack

  • Good understanding of browser compatibility, accessibility, security, and frontend performance optimization

  • Strong debugging and problem-solving skills

  • Experience working in an Agile/Scrum delivery environment

Preferred Skills

  • Experience with Next.js

  • Familiarity with GraphQL

  • Experience with component libraries/design systems such as Material UI, Ant Design, or Tailwind CSS

  • Exposure to cloud environments such as AWS or Azure

  • Experience with Cypress or Playwright for end-to-end testing

  • Understanding of microservices and API-driven architectures

  • Experience working with distributed onsite/offshore engineering teams

Nice to Have

  • Experience developing enterprise-scale applications.

  • Knowledge of web accessibility standards such as WCAG.

  • Familiarity with frontend observability and performance-monitoring tools.

  • Experience identifying and resolving frontend security vulnerabilities.

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