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Artificial Intelligence, Machine Learning, Software, SaaS

Senior Frontend Engineer

United StatesRemoteFull TimeSenior$30,000–$80,000 /yrPosted 2 months agoHidden Gem · YC Startup

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Role summary

FuseAI is seeking a Senior Frontend Engineer with 4+ years of experience in React, Next.js, and TypeScript to join their remote-first, Y Combinator-backed AI startup. The role involves architecting and building performant, pixel-perfect front-end features for an AI-powered sales automation platform. Responsibilities include implementing scalable UI components, optimizing performance, and contributing to front-end architecture best practices. The ideal candidate will have a strong product sense and design intuition, with bonus points for experience with AI-driven interfaces or enterprise SaaS. This is a high-impact role in a fast-paced environment.

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\
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.
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