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# Frontend Engineer - AI Coding Expert - AI Trainer

- **Company:** Mercor, Inc.
- **Location:** San Francisco, CA, United States (Remote available)
- **Experience:** Experienced
- **Salary:** $176,800.0
- **Contract:** Permanent contract
- **Skills:** JavaScript (Programming Language), Artificial Intelligence, Cursor (Graphical User Interface Elements), Performance Tuning, TypeScript, Web Applications, Enterprise Software Applications, ReactJS, Front End Software Development
- **Published:** June 19, 2026
- **Apply:** https://www.indeed.com/viewjob?jk=978dfe382367be8c

## About the Role

Do you have experience in Web applications?, Must-Have

 * 2+ years of professional frontend engineering experience.
 * Experience building modern web applications using React, TypeScript, JavaScript, or similar technologies.
 * Regular use of AI coding agents such as Cursor, Claude Code, Codex, Windsurf, Gemini CLI, or similar tools.
 * Ability to evaluate model-generated frontend implementations, UI architecture, and performance optimizations.

Preferred

 * Experience working on large-scale consumer or enterprise applications.

## Description

* Review model-generated frontend code for correctness, quality, maintainability, accessibility, and performance.
 * Identify bugs, edge cases, and failure modes in model outputs.
 * Compare outputs from multiple frontier models and assess their strengths and weaknesses.
 * Apply professional engineering judgment to realistic frontend engineering scenarios.


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