Senior Frontend Engineer: High-Perf React/TS UI Leader

Evlo AI; Seattle (WA); On-site; USD 110,000 - 170,000; Full time

Job summary

Evlo AI is seeking a frontend architect to own the frontend architecture and user experience for high-performance web applications used by millions daily. You will collaborate with designers and backend engineers to deliver accessible, fluid interfaces that handle complex data interactions seamlessly.

You will build reusable components, optimize performance, and work with REST/GraphQL APIs, while mentoring teammates and upholding frontend standards.

Qualifications

• 3–6 years of professional frontend software engineering focused on component-driven architecture.
• Expert JavaScript/TypeScript, HTML5, CSS3/Sass, and modern React ecosystems.
• Strong web performance optimization, core web vitals, and WCAG accessibility knowledge.
• Experience with state management libraries, build tools, and CI/CD.

Responsibilities

• Architect, build, and maintain scalable user interfaces with React and TypeScript.
• Optimize applications for speed, performance, and cross-browser compatibility.
• Design reusable components and design system standards to accelerate delivery.
• Integrate RESTful and GraphQL APIs with efficient state management.
• Write testable code with Jest, React Testing Library, and Cypress.
• Participate in code reviews, mentor engineers, and uphold frontend standards.

Skills

Frontend architecture

React ecosystem

JavaScript/TypeScript

Web performance

Education

BS/MS in CS or related field

Tools

Vite

Webpack

Redux Toolkit

React Query

Jest

Cypress

Job description

Evlo AI is seeking a frontend architect to own the frontend architecture and user experience for high-performance web applications used by millions daily. You will collaborate with designers and backend engineers to deliver accessible, fluid interfaces that handle complex data interactions seamlessly.

You will build reusable components, optimize performance, and work with REST/GraphQL APIs, while mentoring teammates and upholding frontend standards.