Copy Editor Expert (American English)

Role Overview

Mercor is seeking an experienced Copy Editor Expert (American English) to support high-quality written content across a range of AI training initiatives.

This role is ideal for a detail-oriented language professional who can ensure clarity, consistency, grammatical precision, and stylistic excellence across complex written materials.

We are looking for someone with exceptional command of English, strong editorial judgment, and a meticulous eye for detail. This position requires consistent engagement and reliability over time.

Key Responsibilities

• Edit and proofread written content for grammar, spelling, punctuation, syntax, and clarity
• Ensure consistency in tone, style, formatting, and terminology across documents
• Improve structure, readability, and logical flow without altering intended meaning
• Identify ambiguities, inconsistencies, and factual or structural issues
• Enforce adherence to editorial style guides
• Flag unclear instructions, weak reasoning, or editorial risks in source material
• Provide thoughtful feedback to improve overall content quality

Ideal Qualifications

• 5+ years of professional experience in copy editing, proofreading, journalism, publishing, technical editing, or a related field
• Exceptional written and grammatical command of American English
• Proven history of high-precision editorial work with minimal error rates
• Extremely strong attention to detail
• Familiarity with editorial style guides such as Chicago, AP, MLA, or equivalent
• Ability to work independently while maintaining consistent quality standards
• Reliable availability and consistent engagement

More About the Opportunity

• Minimum commitment: 20 hours per week
• Ongoing engagement with potential extensions
• Work involves reviewing and refining high-volume written materials used for AI training

Application Process

1. Submit your resume highlighting relevant editorial experience
2. Complete the required interview and assessment
3. Successful candidates will receive next steps within a few days

Contract & Payment Terms

• Independent contractor role
• Fully remote work environment
• Flexible schedule
• Weekly payments via Stripe or Wise
• Projects may be extended or concluded based on performance and project needs

Note: Mercor currently cannot support H1-B or STEM OPT candidates.

About Mercor

Mercor is a talent marketplace connecting top experts with leading AI labs and research organizations.

The company is backed by major investors including Benchmark, General Catalyst, Adam D’Angelo, and Jack Dorsey.

Thousands of professionals across law, engineering, research, design, and creative fields contribute to Mercor projects helping train the next generation of AI systems.