Staff/Senior Frontend Engineer

About the Company

A fast-scaling B2B SaaS company headquartered in New York, they're building a world-class engineering team in Manhattan and Buenos Aires to solve one of the most ambitious and high-impact problems in enterprise AI.

They are on a mission to help companies understand and control their AI presence.

They just closed a $35M Series B led by Sequoia Capital to build the platform companies rely on to understand and control their AI presence—pioneering Answer Engine Optimization and marketing to superintelligence.

They have also raised a $96 million Series C at a $1B valuation (unicorn status). The round was led by Lightspeed Venture Partners, with continued participation from Sequoia Capital, Kleiner Perkins, Evantic, Saga Ventures, and South Park Commons. This brings total funding to over $155M in under 18 months.

What You’ll Do

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

• Implement precise CSS to create 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 the 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.

Location

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

The total compensation package is designed to be competitive and includes base salary, equity, and a full range of benefits and perks. Final compensation will depend on factors such as your skills, experience, qualifications, and location, and will be determined during the interview process.

Benefits & Perks

• Flexible equipment: Laptop and office setup covered so you can work the way you work best.

• Food & transport: Meals and rides home covered on late nights.

• $150 USD/month wellness stipend: Spend it on fitness, gear, or whatever keeps you at your best.

• Flexible PTO: Vacation within normal ranges, taken when it makes sense for you and the team.

• Occasional travel: Some trips are part of the role — fully covered when they come up.

• Relocation support: Full relocation package available, including for candidates moving from other states.

If this role aligns with your background and interests, they'd love to hear from you.