About the role

Build and ship polished UI across the core product
Collaborate with designers and engineers for high-fidelity implementations
Craft layouts, typography, and micro-interactions
Optimize for performance and accessibility
Contribute to shared UI foundations and components

Skills the posting asks for

React
Next.js
TypeScript
Tailwind CSS

Summarised from the employer’s posting, which is reproduced in full below.

The employer’s full posting

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.

Design Engineer

They are on a mission to help companies understand and control their AI presence. As AI-generated experiences increasingly shape how brands are discovered, trusted, and chosen, the quality of those experiences matters more than ever.

Design engineering is core to how they build. With a high bar for craft, taste, and execution, you will work between design and engineering by shipping high-quality, highly polished experiences across the product and, at times, marketing surfaces.

What You’ll Do

Build and ship polished, production-quality UI across the core product
Partner with product designers, product managers, and engineers to translate intent into precise, high-fidelity implementations
Craft layouts, typography, responsiveness, motion, and micro-interactions using Tailwind CSS
Occasionally contribute to the marketing site and logged-out experiences, maintaining the same bar for quality and performance
Contribute to shared UI foundations, including components, patterns, and design tokens
Work across the stack using React, Next.js, and TypeScript to deliver fast, reliable interfaces
Optimize for performance, accessibility, and maintainability without compromising on design
Raise the bar for frontend craft through code reviews, critiques, and shared standards

Who You Are

Strong experience with React, Next.js, Tailwind, and TypeScript in production environments
Exceptional CSS skills, with a proven ability to build pixel-perfect, resilient UIs
A strong eye for design and interaction, with taste you can defend and implement
Comfortable owning work end-to-end, from early exploration through shipped code
Experience working closely with designers and engineers in fast-moving product teams
A portfolio that demonstrates high-craft frontend or design engineering work
Thrives in a startup environment that values speed, iteration, and quality

Bonus points if:

You like to experiment and work on side projects to keep up with leading edge technologies
You have strong product thinking, a builder mindset, and like to work across the design, product, and engineering stack to get work shipped
You can just do things

Location

This is an on-site role in Buenos Aires, designed for builders who thrive on speed, iteration, and impact.

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.

A note from our founder

In the evolving landscape of product development, exceptional design is foundational. As software engineering becomes increasingly accessible, it is taste, creativity, and thoughtful execution that differentiate outstanding products.

Design sits at the core of success. The goal is to build a design team that sets a new standard of excellence, crafting experiences so compelling they become benchmarks in the industry.

If you believe in the transformative power of great design and want to create work that shapes the future, this role offers that opportunity.