Senior Frontend Engineer (AI)

Location: Brazil — Remote

Company

Builds an all-in-one SaaS platform that helps small businesses establish and grow their online presence through website hosting, performance, smart tools, and human support.

What you will do

• Architect and build high-performance, production-grade customer-facing interfaces with React, Redux or comparable state management, and TypeScript.
• Design and integrate AI-powered features such as chat, content generation, and smart recommendations.
• Own performance, scalability, and reliability across high-traffic applications, including bundle size and render performance.
• Partner with product, design, and backend engineering to move features from concept to production quickly.
• Define frontend standards for reusable components, design-system consistency, testing coverage, and code reviews.
• Mentor junior and mid-level engineers and drive continuous delivery based on user feedback.

Requirements

• 5+ years of experience building and shipping production-grade web applications at scale.
• Deep expertise in React, Redux or modern state management, TypeScript, JavaScript, HTML, and CSS.
• Experience using AI across the delivery lifecycle, reviewing generated code, checking provenance and licensing, and establishing customer-data and compliance guardrails.
• Experience integrating REST APIs and working with microservices-based architectures.
• Experience with Jest or Cypress, component libraries, and design systems.
• Experience in high-scale SaaS or consumer-platform environments, with end-to-end ownership of technical outcomes.

Nice to have

• Experience with Next.js.
• Previous work integrating LLM-powered or AI-driven product features.

Culture & Benefits

• Remote work with a culture focused on work-life balance and belonging.
• Meal or food voucher worth R$44.55 per working day.
• Health and dental insurance with no employee co-pay, plus life insurance.
• Well-being benefits including Gympass, online meditation, telemedicine, and pet health insurance access.
• Access to undergraduate, graduate, and language courses through more than 100 educational institutions.
• Mentorship, career development opportunities, and free website hosting.