Remote Frontend Engineer for AI UI Evaluation

Synthires; United States; Remote; USD 96,000 - 138,000; Part time

Job summary

Synthires is seeking experienced Frontend Engineers to evaluate AI-generated frontend code, UI implementations, and web applications. You will ensure correctness, performance, accessibility, and maintainability while applying JavaScript/TypeScript expertise across React, Angular, Vue, and modern frameworks.

The role emphasizes building pixel-perfect, responsive interfaces and providing structured feedback to improve AI-driven development.

Qualifications

• Bachelor's degree or equivalent professional experience in a technical field.
• Professional experience in frontend engineering, frontend development, web development, or UI engineering.
• Strong proficiency in JavaScript and/or TypeScript.
• Experience with modern frontend frameworks such as React, Angular, Vue.js, or similar technologies.
• Strong understanding of HTML, CSS, responsive design, and component-based architecture.
• Experience implementing pixel-accurate user interfaces and component style guides.
• Strong skills in debugging, code review, performance optimization, and frontend problem-solving.
• Excellent analytical thinking, written communication, and attention to detail.
• Ability to work independently in a fully remote environment.
• Bonus: Next.js, state management libraries, testing frameworks, API integration, design systems, accessibility, CI/CD, and performance optimization.

Responsibilities

• Evaluate AI-generated frontend code, web applications, and UI implementations for correctness, quality, maintainability, and performance.
• Build, review, and improve responsive, accessible, and user-friendly web interfaces.
• Apply expertise in JavaScript, TypeScript, HTML, CSS, and modern frontend frameworks.
• Review AI-generated implementations for bugs, edge cases, rendering issues, accessibility concerns, and performance bottlenecks.
• Implement and evaluate components, design systems, user interfaces, and interactive web features.
• Ensure pixel-accurate UI implementation while maintaining responsiveness across devices.
• Debug and refactor existing frontend codebases to improve performance, scalability, and maintainability.
• Apply best practices in web accessibility, browser compatibility, frontend architecture, and user experience.
• Provide structured technical feedback to improve AI coding accuracy, reasoning, and frontend development capabilities.

Skills

JavaScript

TypeScript

React

Angular

Vue.js

HTML/CSS

Responsive design

Web performance

Accessibility

Debugging

Education

Bachelor's degree or equivalent

Tools

Next.js

Git/GitHub

CI/CD

Design systems

UI component libraries

Job description

Synthires is seeking experienced Frontend Engineers to evaluate AI-generated frontend code, UI implementations, and web applications. You will ensure correctness, performance, accessibility, and maintainability while applying JavaScript/TypeScript expertise across React, Angular, Vue, and modern frameworks.

The role emphasizes building pixel-perfect, responsive interfaces and providing structured feedback to improve AI-driven development.