Lead Front-End Developer

MACHINE LEARNING TECHNOLOGIES LLC; Green Curve Heights (NJ); On-site; USD 80,000 - 120,000; Full time

Job summary

MACHINE LEARNING TECHNOLOGIES LLC is seeking a Lead Front-End Developer located in Green Curve Heights, New Jersey. This role involves leading the design and development of scalable web applications, with a strong focus on React.js and Angular frameworks. The ideal candidate will engage in close collaboration with backend and DevOps teams to create high-quality user experiences while ensuring best practices in performance optimization and security are met.

This 12-month position offers competitive hourly rate depending on experience, with opportunities for extension. We welcome candidates with various work authorizations including US Citizens, Green Card holders, and various EAD statuses.

Qualifications

• Expert-level experience with React.js and Angular is essential.
• Strong proficiency in JavaScript (ES6+), TypeScript, HTML5, and CSS3.
• Hands-on experience with responsive design frameworks.

Responsibilities

• Lead the architecture and development of responsive, high-performance web applications.
• Collaborate closely with backend teams to define APIs and integration patterns.
• Implement CI/CD pipelines and ensure security best practices.

Skills

React.js

Angular

JavaScript (ES6+)

TypeScript

HTML5

CSS3

Redux

Responsive design frameworks

Job description

Job ID: J52404

Job Title: Lead Front-End Developer

Location: New Jersey, NJ

Duration: 12 Months + Extension

Hourly Rate: Depending on Experience (DOE)

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

Job Summary

We are seeking a Lead Front-End Developer who can drive the design and development of modern, scalable web applications while collaborating closely with backend and DevOps teams. The ideal candidate will have deep expertise in JavaScript frameworks (React/Angular), strong UI/UX sensibilities, and working knowledge of backend technologies to support end-to-end application development.

Key Responsibilities

Front-End Leadership

• Lead the architecture and development of responsive, high-performance web applications.
• Own front-end technical decisions, coding standards, and best practices.
• Translate UX/UI designs into reusable, scalable front-end components.
• Ensure cross-browser compatibility, accessibility (WCAG), and performance optimization.
• Review code, mentor junior developers, and enforce clean code principles.

Backend Collaboration & Exposure

• Work closely with backend teams to define APIs, data contracts, and integration patterns.
• Develop and consume RESTful APIs (and/or GraphQL).
• Understand backend concepts such as authentication, authorization, session management, and caching.
• Perform light backend development or debugging when needed.

DevOps & Quality

• Collaborate on CI/CD pipelines and deployment strategies.
• Implement unit tests, integration tests, and front-end automation frameworks.
• Ensure security best practices (XSS, CSRF, OWASP awareness).
• Participate in Agile/Scrum ceremonies and contribute to sprint planning.

Required Skills & Qualifications

Front-End (Core)

• Expert-level experience with React.js and Angular (both).
• Strong proficiency in JavaScript (ES6+), TypeScript, HTML5, CSS3.
• Experience with modern state management (Redux, NgRx, Zustand, etc.).
• Hands-on experience with responsive design frameworks and CSS preprocessors.
• Strong understanding of component-based architecture and micro-frontend concepts.

Backend (Exposure / Working Knowledge)

• Experience with Java (Spring Boot)
• Understanding of REST APIs, API gateways, and authentication mechanisms (OAuth2, JWT).
• Basic experience with databases (SQL/NoSQL) and data modeling concepts.

Equal Opportunity Employer

MACHINE LEARNING TECHNOLOGIES LLC is an equal opportunity employer inclusive of female, minority, disability and veterans, (M/F/D/V). Hiring, promotion, transfer, compensation, benefits, discipline, termination and all other employment decisions are made without regard to race, color, religion, sex, sexual orientation, gender identity, age, disability, national origin, citizenship/immigration status, veteran status or any other protected status. MACHINE LEARNING TECHNOLOGIES LLC will not make any posting or employment decision that does not comply with applicable laws relating to labor and employment, equal opportunity, employment eligibility requirements or related matters. Nor will MACHINE LEARNING TECHNOLOGIES LLC require in a posting or otherwise U.S. citizenship or lawful permanent residency in the U.S. as a condition of employment except as necessary to comply with law, regulation, executive order, or federal, state, or local government contract.