React.js Frontend Developer

MACHINE LEARNING TECHNOLOGIES LLC; New York (NY); On-site; USD 90,000 - 130,000; Full time

Job summary

MACHINE LEARNING TECHNOLOGIES LLC is seeking a React.js Frontend Developer for our New York City team. The role focuses on building responsive web applications with React.js, creating reusable UI components, and integrating REST APIs using TypeScript.

You’ll collaborate with UI/UX designers and backend developers to optimize performance and ensure cross‑device compatibility. Experience with Redux/Context API and Next.js is a plus, with a strong emphasis on code quality and modern tooling.

Qualifications

• Proficient in React.js and TypeScript with a strong understanding of modern JS tooling.
• Experience building responsive UI components and integrating RESTful services.
• Familiarity with state management (Redux/Context API) and testing libraries.

Responsibilities

• Develop responsive web applications using React.js.
• Build reusable UI components and frontend libraries.
• Implement application functionality using JavaScript and TypeScript.
• Integrate REST APIs and backend services.
• Manage application state using Redux, Context API, or similar tools.
• Optimize application performance and improve page loading speed.
• Develop responsive layouts compatible with multiple devices and browsers.
• Collaborate with UI/UX designers and backend developers.
• Troubleshoot frontend issues and maintain application quality.
• Participate in code reviews and frontend development improvements.

Skills

React.js

JavaScript

TypeScript

HTML5

CSS3

Redux

Context API

REST API Integration

Responsive Web Design

Next.js

Tools

Material UI

Bootstrap

Tailwind CSS

Git

Jest

React Testing Library

Cypress

Job description

Job Overview

Job ID: J53512

Job Title: React.js Frontend Developer

Location: New York City, NY

Duration: 17 Months + Extension

Domain Exposure: Pharmaceuticals

Work Authorization: US Citizen, Green Card, OPT-EAD, CPT, H-1B, H4-EAD, L2-EAD, GC-EAD

Client: To Be Discussed Later

Employment Type: W-2, 1099, C2C

Key Responsibilities

• Develop responsive web applications using React.js.
• Build reusable UI components and frontend libraries.
• Implement application functionality using JavaScript and TypeScript.
• Integrate REST APIs and backend services.
• Manage application state using Redux, Context API, or similar tools.
• Optimize application performance and improve page loading speed.
• Develop responsive layouts compatible with multiple devices and browsers.
• Collaborate with UI/UX designers and backend developers.
• Troubleshoot frontend issues and maintain application quality.
• Participate in code reviews and frontend development improvements.

Required Skills

• React.js and JavaScript.
• TypeScript.
• HTML5 and CSS3.
• Redux and Context API.
• REST API Integration.
• Responsive Web Design.
• Material UI, Bootstrap, or Tailwind CSS.
• Git and Version Control.
• Jest, React Testing Library, or Cypress.
• Next.js knowledge.

Equal Opportunity Employer

We are an equal opportunity employer. All aspects of employment including the decision to hire, promote, discipline, or discharge, will be based on merit, competence, performance, and business needs. We do not discriminate on the basis of race, color, religion, marital status, age, national origin, ancestry, physical or mental disability, medical condition, pregnancy, genetic information, gender, sexual orientation, gender identity or expression, national origin, citizenship/ immigration status, veteran status, or any other status protected under federal, state, or local law.