Senior Front-End Architect — React & Design System Lead

IPolarity LLC; Whippany (NJ); On-site; USD 180,000 - 230,000; Full time

Job summary

IPolarity LLC is seeking a Sr Front-End Architect in Jersey City, NJ. You will lead the design and delivery of high-performance web experiences using React and TypeScript, partnering with Product, UX, and backend teams.

You will establish front-end standards, guide architecture decisions, and mentor development teams while focusing on performance, accessibility, and secure client-side patterns.

Qualifications

• 15+ years professional software engineering experience with significant depth in front-end web development; proven leadership.
• Expert-level React proficiency (hooks, context, rendering behavior, concurrency patterns).
• Strong TypeScript skills and modern JavaScript fundamentals.

Responsibilities

• Lead complex web applications using React + TypeScript and own front-end architecture.
• Collaborate with UX/Product to translate designs into polished experiences with performance and accessibility in mind.
• Establish and evolve front-end standards, tooling, and design systems for scalable delivery.
• Drive performance, Core Web Vitals, and code quality including security considerations.

Skills

React proficiency

TypeScript

Frontend architecture

Performance optimization

Accessibility

AI-assisted development

Mentoring

Tools

Vite/Webpack

Babel/SWC

npm/pnpm/yarn

Storybook

CSS-in-JS

GraphQL

REST APIs

Job description

IPolarity LLC is seeking a Sr Front-End Architect in Jersey City, NJ. You will lead the design and delivery of high-performance web experiences using React and TypeScript, partnering with Product, UX, and backend teams.

You will establish front-end standards, guide architecture decisions, and mentor development teams while focusing on performance, accessibility, and secure client-side patterns.