Remote English Linguistic Expert for AI Language QA

Mercor; Toronto; Remote; CAD 60,000 - 90,000; Full time

Benefits offered by this job

Fully remote

Flexible hours

Job summary

Mercor seeks experienced English Linguistic Experts to join an AI research project and evaluate LLM performance on English-language tasks. You will curate high-quality English linguistic data to train and improve the model’s understanding and generation capabilities.

Responsibilities include evaluating, editing, annotating, and providing linguistic feedback to guide ongoing model training. The role supports fully remote work with flexible, asynchronous hours, and requires strong English

Qualifications

• Native or near-native fluency in English.
• Professional editing, proofreading, writing, linguistic annotation, or NLP data work experience in English.
• Strong understanding of linguistic nuances, regional variations, tone, and context-appropriate English usage.
• Excellent ability to identify subtle grammatical errors, awkward phrasing, ambiguity, and unnatural language.
• Interest in AI and LLM-driven language technologies is preferred but not required.
• Strong written communication and attention to detail.

Responsibilities

• Evaluate the quality and accuracy of LLM-generated English text across use cases (e.g., summarization, dialogue, grammar correction, rewriting, and reasoning).
• Edit, refine, or rewrite English content to meet high linguistic, stylistic, and cultural standards.
• Annotate English text for grammatical, syntactic, semantic, and stylistic features.
• Identify model errors, inconsistencies, and language gaps, and provide feedback to improve LLM performance.
• Provide detailed linguistic feedback and analysis to guide ongoing model training efforts.

Skills

Native English

Editing

Linguistic annotation

NLP data

Attention to detail

Independent work

AI interest

Job description

Mercor seeks experienced English Linguistic Experts to join an AI research project and evaluate LLM performance on English-language tasks. You will curate high-quality English linguistic data to train and improve the model’s understanding and generation capabilities.

Responsibilities include evaluating, editing, annotating, and providing linguistic feedback to guide ongoing model training. The role supports fully remote work with flexible, asynchronous hours, and requires strong English