Senior Frontend Engineer

FuseAI; United States; Remote; USD 140,000 - 180,000; Full time

Job summary

FuseAI is seeking a Senior Front End Engineer with deep Next.js expertise to shape the user experience of our AI-powered sales platform. You will work directly with our co-founder and CTO to deliver production-grade UI at startup speed.

You’ll architect features with React and TypeScript, collaborate across design, backend, and product teams, and contribute to scalable UI components and design systems. Remote-first environment with high-impact, fast-paced delivery.

Qualifications

• 4+ years of professional experience in front-end development with React and Next.js.
• Deep understanding of SSR/SSG, API integration, and performance optimization in Next.js.
• Experience with state management libraries (Redux, Zustand, or similar).
• Familiarity with frontend tooling (Webpack, Vite, Babel) and testing frameworks (Jest, Cypress, React Testing Library).
• Ability to thrive in a fast-paced startup environment delivering daily shipping.
• Strong product sense and design intuition; experience collaborating with designers.

Responsibilities

• Architect and build pixel-perfect, performant front-end features using Next.js, React, and TypeScript.
• Collaborate with design, backend, and product teams to deliver high-quality experiences.
• Implement scalable UI components with accessibility and cross-browser compatibility.
• Optimize performance with SSR/SSG, caching, and dynamic imports.
• Explore AI-driven front-end experiences and real-time collaboration.
• Contribute to design systems and front-end architecture best practices.

Skills

React

Next.js

TypeScript

SSR/SSG

API integration

Performance optimization

State management

Frontend testing

Design collaboration

Tools

Redux

Zustand

Webpack

Vite

Babel

Jest

Cypress

React Testing Library

Storybook

TailwindCSS

Job description

The Role

We're looking for a Senior Front End Engineer with deep expertise in Next.js to join our fast-paced, high-impact engineering team. You'll work directly with our co-founder and CTO, an AI startup veteran with a successful exit, a decade of ML experience, and a Forbes 30 Under 30 recognition. As a core member of our front-end team, you'll help define the user experience of the next-generation AI-powered sales automation platform while building production-grade software at startup speed.

What You'll Do

• Architect and build pixel-perfect, performant front-end features using Next.js, React, and TypeScript.
• Collaborate closely with design, backend, and product teams to deliver seamless, high-quality user experiences.
• Implement scalable and reusable UI components, ensuring strong accessibility, responsiveness, and cross-browser compatibility.
• Optimize performance (server-side rendering, caching, dynamic imports, etc.) to deliver lightning-fast user interfaces.
• Experiment with AI-driven front-end experiences, such as agent-driven interfaces and real-time collaboration.
• Contribute to design systems and front-end architecture best practices, raising the bar for engineering excellence.

What We're Looking For

• 4+ years of professional experience in front-end development, with strong proficiency in React, Next.js, and TypeScript.
• Deep understanding of SSR/SSG, API integration, and performance optimization in Next.js.
• Experience with state management libraries (Redux, Zustand, or similar).
• Familiarity with frontend tooling (Webpack, Vite, Babel) and testing frameworks (Jest, Cypress, React Testing Library).
• Ability to thrive in an ultra-fast-paced startup environment where we ship daily.
• Strong product sense and design intuition; experience working closely with designers.
• Bonus points for experience with:
  • AI-driven interfaces or conversational UI patterns
  • TailwindCSS, Storybook, or building component libraries
  • Sales/GTM tools or enterprise SaaS platforms

Why Join Us

• Work with world-class founders. Get direct mentorship from elite technical leaders and play a critical role in shaping a category-defining company.
• Extreme impact. Your code will define the look and feel of the product that customers interact with every day.
• Remote-first. Work from anywhere with WiFi while collaborating with an all-star team.
• Y Combinator-backed. Join a venture-backed company with high-growth potential and massive market opportunity.
• Competitive compensation. Mix of stock plus cash - we want you to share in the upside of what we're building.

This is not an average 9-to-5 job - this is a rocketship. If you're ready to push boundaries, move fast, and build the future of AI-powered sales, we'd love to hear from you.

About the Interview

About the Interview
Intro Call: 30 minutes with one of our founders to learn more about the role, your experience, and what drives you.
Take-Home Test: A 2-3 hour coding challenge focused on building a complex Next.js UI feature. You'll then debrief with our CTO to discuss your approach and tradeoffs.
Final Round: A 30-minute technical and behavioral interview with both co-founders.
Offer: If it's a match, we'll move fast and make an offer.

About FuseAI

FuseAI is building a new agentic operating system to enable enterprises to automate their entire go-to-market (GTM) organizations with vertical AI agents. Think Salesforce meets OpenAI Operator - but specifically built for GTM teams. Our platform lets sales professionals run their entire deal cycle through a simple AI-powered interface: use natural language to manage customer relationships, enrich B2B contacts, find high-intent leads, and engage with clients instantly.