Copy Editor Expert (American English) at Mercor

Copy Editor Expert (American English) | $50–60/hr | Worldwide Remote | 20+ hrs/week

Mercor is seeking an experienced English Copy Editor to support high-quality written content across a range of AI training initiatives. This is an excellent opportunity for a detail-oriented language professional who thrives on precision, consistency, and editorial excellence.

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 the intended meaning
• Identify ambiguities, inconsistencies, and factual or structural issues
• Enforce style guide adherence and maintain high editorial standards
• Flag unclear instructions, weak reasoning, or editorial risks in source material
• Provide thoughtful, constructive feedback to elevate overall content quality

Ideal Qualifications

• 5+ years of proven professional experience in copy editing, proofreading, journalism, publishing, technical editing, or a related field
• Exceptional written and grammatical command of English (native or near-native proficiency required)
• Demonstrated history of high-precision editorial work with minimal error rates
• Extremely high attention to detail with the ability to catch subtle inconsistencies
• Strong familiarity with major style guides (e.g., Chicago, AP, MLA, or equivalent)
• Ability to work independently while maintaining consistent quality standards
• Reliable availability and consistent long-term engagement

Opportunity Details

• Minimum commitment: 20 hours per week
• Ongoing, consistent engagement expected
• Work involves reviewing and refining high-volume written material for AI training projects

About Mercor

Mercor is a talent marketplace connecting top experts with leading AI labs and research organizations. Backed by investors including Benchmark, General Catalyst, Adam D'Angelo, and Jack Dorsey, Mercor supports thousands of professionals across law, research, engineering, design, and creative fields — all contributing to the next generation of AI.