Frontend Engineer - AI Coding Expert - AI Trainer

Mercor, Inc.

San Francisco, CA, United States

about 2 months ago

Role details

Contract type

Permanent contract

Employment type

Part-time (≤ 32 hours)

Experience level

Experienced

Experience required

2 years minimum

Compensation

$176,800.0

Working hours

Regular working hours

Job source

indeed.com

Tech stack

JavaScript (Programming Language) Artificial Intelligence Cursor (Graphical User Interface Elements) Performance Tuning TypeScript Web Applications Enterprise Software Applications ReactJS Front End Software Development

Job 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.

Requirements

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.

Benefits & conditions

3.93.9 out of 5 stars San Francisco, CA Remote $85 an hour - Part-time

About the company

Mercor connects elite creative and technical talent with leading AI research labs. Headquartered in San Francisco, our investors include Benchmark, General Catalyst, Peter Thiel, Adam D’Angelo, Larry Summers, and Jack Dorsey.