Frontend Engineer

Evlo AI; Seattle (WA); Hybrid; USD 120,000 - 160,000; Full time

Job summary

Evlo AI is hiring a frontend engineer to build user-facing web apps with a strong emphasis on performance, accessibility, and developer experience. You will own features end-to-end, from design to deployment, in a hybrid Seattle office with a large TypeScript/React codebase.

You will collaborate with product designers and backend engineers, maintain a shared component library, and drive frontend standards across the organization. 3+ years of frontend experience and a CS degree are valued.

Qualifications

• 3+ years of professional frontend engineering experience shipping production web applications.
• Deep proficiency in TypeScript, React, and modern CSS.
• Experience with modern build tooling (Vite, Webpack, Turborepo, or Next.js).
• Strong understanding of accessibility and performance best practices.
• Experience with GraphQL (Apollo), design systems tooling (Storybook), or React Native is a plus.

Responsibilities

• Build and ship user-facing features in React and TypeScript, owning delivery from implementation through production monitoring.
• Develop and maintain a shared component library and design system with accessibility in mind.
• Optimize application performance: bundle analysis, code splitting, lazy loading, Core Web Vitals.
• Integrate with REST and GraphQL APIs, collaborating on contracts and error handling.
• Write unit and integration tests; contribute to end-to-end coverage.
• Participate in code reviews and RFC processes shaping frontend standards.

Skills

TypeScript

React

CSS

Performance profiling

Testing

Code reviews

Education

Bachelor's degree in Computer Science or equivalent

Tools

Vite

Webpack

Turborepo

Next.js

Storybook

Apollo GraphQL

Jest

Playwright

React Testing Library

Job description

About The Role

The role focuses on building user-facing web applications where performance, accessibility, and developer experience all matter. This is a frontend engineering position with real ownership — the engineer will ship production features end-to-end, from component design to deployment, for a product used by hundreds of thousands of users.

About The Role

The role focuses on building user-facing web applications where performance, accessibility, and developer experience all matter. This is a frontend engineering position with real ownership — the engineer will ship production features end-to-end, from component design to deployment, for a product used by hundreds of thousands of users.

The team owns a large TypeScript/React codebase and treats frontend architecture seriously: design systems, bundle performance, rendering strategy, and testing are first-class concerns, not afterthoughts. The role works directly with product designers and backend engineers in a hybrid Seattle office.

Key Responsibilities

• Build and ship user-facing features in React and TypeScript, owning delivery from implementation through production monitoring
• Develop and maintain a shared component library and design system, ensuring consistency, accessibility (WCAG 2.1 AA), and reusability across products
• Optimize application performance: bundle analysis, code splitting, lazy loading, and Core Web Vitals improvements measured against real user metrics
• Integrate with REST and GraphQL APIs, collaborating with backend engineers on contracts, error handling, and loading/edge states
• Write unit and integration tests using Jest and React Testing Library; contribute to Playwright-based end-to-end coverage
• Participate in code reviews, architecture discussions, and RFC processes that shape frontend standards across the organization
• Debug production issues using tools like Sentry and Datadog RUM, and drive fixes through to resolution

What We Are Looking For

• 3+ years of professional frontend engineering experience shipping production web applications
• Deep proficiency in TypeScript, React (including hooks, state management patterns, and performance profiling), and modern CSS
• Experience with at least one modern build tooling ecosystem: Vite, Webpack, Turborepo, or Next.js
• Strong understanding of browser internals, rendering behavior, and web performance fundamentals
• Track record of building accessible interfaces and working with accessibility tooling (axe, Lighthouse, screen readers)
• Bachelor's degree in Computer Science or equivalent practical experience
• Bonus: experience with GraphQL (Apollo), design systems tooling (Storybook), mobile web or React Native, or contributing to open-source frontend libraries