Senior Front-End Engineer: AI-Powered Prototyping Tools

Braintrust; New York (NY); On-site; USD 120,000 - 180,000; Full time

Job summary

Braintrust is seeking an experienced frontend engineer to build and maintain AI-assisted prototyping tools that accelerate moving from ideas to high-fidelity prototypes aligned with the Design System.

You will lead new feature development, contribute to documentation, perform code reviews, and provide technical guidance to peers, leveraging expertise in JavaScript, TypeScript, React, and CSS.

Qualifications

• Strong expertise in JavaScript, TypeScript, React, and CSS.
• Experience building AI-powered developer tools.
• Ability to write evaluations to measure AI quality.

Responsibilities

• Build and maintain AI-assisted prototyping tools.
• Lead new feature development.
• Support peers through documentation, code reviews, and technical guidance.

Skills

JavaScript

TypeScript

React

CSS

Generative AI Tooling

Frontend Component Design

AI Evals

Web Components

Web Accessibility

WAI-ARIA

WCAG

Technical Documentation

Code Review

Prototyping Tools

Design Systems

Tools

Code Review

Prototyping Tools

Design Systems

Web Accessibility tooling

Job description

Braintrust is seeking an experienced frontend engineer to build and maintain AI-assisted prototyping tools that accelerate moving from ideas to high-fidelity prototypes aligned with the Design System.

You will lead new feature development, contribute to documentation, perform code reviews, and provide technical guidance to peers, leveraging expertise in JavaScript, TypeScript, React, and CSS.