Frontend Engineer — Evlo AI, New York, NY

About The Role

The role centers on building user-facing web applications where performance, accessibility, and visual polish are non-negotiable. The engineer will ship features used by millions of users daily, working primarily in React and TypeScript against well-defined design systems and a fast-moving product roadmap.

This is a hands-on frontend position with real ownership: the engineer will work directly with product managers, designers, and backend engineers to turn ambiguous requirements into production-grade interfaces, and will be accountable for both the code they ship and the user experience it delivers.

Key Responsibilities

• Build and maintain complex, reusable UI components in React and TypeScript, contributing to and evolving an internal component library

• Own feature development end-to-end: wireframes to production, including state management, API integration, and error handling

• Optimize application performance — bundle size, code splitting, render times, Core Web Vitals — for a large-scale single-page application

• Implement responsive, accessible interfaces (WCAG 2.1 AA) using modern CSS tooling such as Tailwind, CSS Modules, or styled-components

• Collaborate with backend engineers on API contract design using REST and GraphQL, and build resilient data-fetching layers with tools like React Query or Apollo

• Write unit and integration tests with Jest, React Testing Library, or Playwright, and maintain high coverage on critical user flows

• Participate in code reviews, architecture discussions, and frontend guild initiatives; mentor junior engineers on the team

What We Are Looking For

• 3–7 years of professional frontend engineering experience, with at least 2 years building production React applications

• Deep proficiency in TypeScript, modern JavaScript (ES6+), and the React ecosystem (hooks, context, performance patterns)

• Strong CSS fundamentals and hands-on experience with at least one modern styling approach (Tailwind, CSS-in-JS, CSS Modules)

• Experience integrating with REST and GraphQL APIs and managing client-side state at scale (Redux, Zustand, React Query, or similar)

• Solid grasp of web performance, accessibility standards, and cross-browser compatibility

• Comfort working in a hybrid cadence from New York, NY, with 3 days per week on-site

• Bonus: experience with Next.js or server-side rendering, design systems tooling (Storybook, Figma handoff), Node.js backend exposure, or contributions to open-source frontend libraries