About Profound

Profound is an NYC-based AI startup helping brands measure and improve their visibility in AI platforms such as ChatGPT. We partner with some of the biggest brands and marketing agencies, including companies like MongoDB, Indeed, Mercury, DocuSign, Zapier, Ramp, Rho, Golin, Workable, Mejuri, Eight Sleep, G2, US Bank, Chime, and Clay.

We recently raised a $20 million Series A led by Kleiner Perkins with participation from NVIDIA, Khosla Ventures, Saga Ventures, South Park Commons, and SV Angel, as well as angel investors including Guillermo Rauch (Vercel) and Andrew Karam (Applovin).

Learn more at tryprofound.com.

Profound is on a mission to help companies understand and control their AI presence. As a Frontend Engineer, you’ll play a key role in shaping high-performance, visually stunning React applications that power the future of AI-driven marketing experiences.

What You’ll Do

• Build and refine sleek, high-quality user interfaces from low-fidelity wireframes.

• Implement “god-like CSS” to create exceptional, pixel-perfect experiences.

• Optimize front-end performance to ensure seamless interactions.

• Work closely with design and engineering to bring ideas to life with precision and speed.

• Contribute to our product’s core architecture and front-end best practices.

Who You Are

• Expertise in React, Next.js, and TypeScript, with a deep understanding of state management and performance optimization.

• Strong experience with Tailwind CSS or SASS/SCSS, delivering refined, polished, and visually sharp UIs.

• Proven ability to architect and scale complex Next.js applications, leveraging features like App Router, SSR, SSG, and ISR.

• Familiarity with fetch management libraries like react-query or similar.

• Hands-on experience with CSS animations, transitions, and layout techniques to create smooth, engaging interfaces.

• A strong portfolio showcasing high-quality front-end development work.

• A keen eye for design, detail, and user experience, ensuring seamless interactions.

• Comfortable in a fast-paced, high-performance startup environment, iterating quickly on new ideas.

Bonus if you have

• GSAP (for smooth animations and interactions).

• R3F (React Three Fiber) or Three.js (for immersive 3D experiences).

• Proven ability to lead large-scale migrations to Next.js, designing and implementing solutions that make full use of its strengths.

• Deep understanding of caching mechanisms and CDN integrations to enhance the performance and scalability of Next.js applications worldwide.

• Experience implementing sophisticated internationalization (i18n) and localization (l10n) strategies for global user bases in Next.js projects.

• Practical experience working with React Server Components, successfully integrating them into production applications for improved performance and maintainability.

This is an on-site role in our Union Square office—designed for builders who thrive on speed, iteration, and impact.

We’re happy to support visa sponsorship for qualified international candidates.