Jobs for data annotator at Toronto

1,048 data annotator job listings in Canada. Find daily updated positions from leading job boards.


  • Toronto, ON, Canada YO AI Labs Full-time €70,000 - €110,000 Contract

    YO AI Labs is seeking a remote Child Development Psychologist (PhD) to support AI training projects. You will evaluate and annotate data, analyze developmental scenarios, and provide expert guidance to improve the psychological integrity and cultural relevance of AI systems. No prior AI experience is required. You will review datasets, assess developmental...


  • Toronto, ON, Toronto Census Division, ON; Ontario, Canada Work Vista Full-time €15 - €18 Temporary

    Join to apply for the Annotation Quality Editor (Remote) role at Work Vista . This remote, part‑time contract role serves as a final quality assurance layer in the data pipeline. You will review and refine the work of other annotators and the AI model itself. Key Details Job Title: Annotation Quality Editor (Remote) Location: Remote within the...


  • Toronto, ON, Toronto Census Division, ON; Ontario, Canada YO AI Labs Full-time

    YO AI Labs is seeking a remote Child Development Psychologist (PhD) to support AI training projects. You will evaluate and annotate data, analyze developmental scenarios, and provide expert guidance to improve the psychological integrity and cultural relevance of AI systems. No prior AI experience is required. You will review datasets, assess developmental...


  • Toronto, ON, Toronto Census Division, ON; Ontario, Canada Wisedocs Full-time

    Wisedocs is a fast-growing, venture-backed AI platform that transforms how insurance companies analyze claims. With ~$20M USD raised, 100+ team members globally, and 90+ customers across North America and Australia, we’re doubling revenue year over year. Founded by experts who’ve experienced the claims process firsthand, Wisedocs combines deep domain...

  • Remote Radiologist

    4 days ago


    Toronto, ON, Toronto Census Division, ON; Ontario, Canada YO AI Labs Full-time

    YO AI Labs is seeking Radiologists with strong anatomical knowledge to support an AI training project focused on hand and finger landmark annotation. This remote contractor role requires precise landmark placement and careful review of varied hand poses to ensure high-quality data. You will annotate hand landmarks, verify consistency against guidelines,...


  • Toronto, ON, Toronto Census Division, ON; Ontario, Canada University Health Network Full-time €38 - €57 Temporary

    UHN is Canada’s #1 hospital and the world’s #1 publicly funded hospital. With 10 sites and more than 44,000 TeamUHN members, UHN consists of Toronto General Hospital, Toronto Western Hospital, Princess Margaret Cancer Centre, Toronto Rehabilitation Institute, The Michener Institute of Education and West Park Healthcare Centre. As Canada's top research...


  • Toronto, ON, Toronto Census Division, ON; Ontario, Canada Obsidian Full-time

    Fluent Language Skills Required: Gujarati. Native fluency in Gujarati, including full command of Gujarati script and orthography, is required for this position. All annotation and transcription work is performed in Gujarati. Why This Role Exists Document understanding breaks down fastest in the languages that parsing and vision-language models rarely...


  • Toronto, ON, Toronto Census Division, ON; Ontario, Canada Obsidian Full-time

    Fluent Language Skills Required: Telugu. Native fluency in Telugu, including full command of Telugu script and orthography, is required for this position. All annotation and transcription work is performed in Telugu. Why This Role Exists Document understanding breaks down fastest in the languages that parsing and vision-language models rarely see. This...


  • Toronto, ON, Toronto Census Division, ON; Ontario, Canada Obsidian Full-time

    Fluent Language Skills Required: Malayalam. Native fluency in Malayalam, including full command of Malayalam script and orthography, is required for this position. All annotation and transcription work is performed in Malayalam. Why This Role Exists Document understanding breaks down fastest in the languages that parsing and vision-language models rarely...


  • Toronto, ON, Toronto Census Division, ON; Ontario, Canada Mercor Full-time

    Fluent Language Skills Required: Japanese. Native fluency in Japanese, including full command of kanji, hiragana and katakana, is required for this position. All annotation and transcription work is performed in Japanese. Why This Role Exists Document understanding breaks down fastest in the languages that parsing and vision-language models rarely see....


  • Toronto, ON, Canada Mercor Full-time $42,000 - $60,000 Contract

    Fluent Language Skills Required: Telugu. Native fluency in Telugu, including full command of Telugu script and orthography, is required for this position. All annotation and transcription work is performed in Telugu. Why This Role Exists Document understanding breaks down fastest in the languages that parsing and vision-language models rarely see. This...


  • Toronto, ON, Canada Mercor Full-time $50,000 - $70,000 Contract

    Fluent Language Skills Required: Odia. Native fluency in Odia (Oriya), including full command of Odia script and orthography, is required for this position. All annotation and transcription work is performed in Odia. Why This Role Exists Document understanding breaks down fastest in the languages that parsing and vision-language models rarely see. This...


  • Toronto, ON, Toronto Census Division, ON; Ontario, Canada Obsidian Full-time

    Join Mercor as an Expert Telugu Document Annotation Specialist, leveraging your language skills to refine document AI capabilities. This role emphasizes accuracy and systematic analysis of various Telugu documents. As a native Telugu speaker, you will engage in detailed document annotation and transcription, contributing to projects that aid in...


  • Toronto, ON, Canada Mercor Full-time $50,000 - $70,000 Contract

    Join Mercor to enhance document AI by annotating Odia documents. This role prioritizes your native language skills through tasks like transcription and structural mapping. As a Document Annotation Specialist at Mercor, you'll utilize your native Odia fluency to create critical training data. The project centers on real-world Odia documents, focusing on...


  • Toronto, ON, Canada Mercor Full-time $42,000 - $60,000 Contract

    Join Mercor as an Expert Telugu Document Annotation Specialist, leveraging your language skills to refine document AI capabilities. This role emphasizes accuracy and systematic analysis of various Telugu documents. As a native Telugu speaker, you will engage in detailed document annotation and transcription, contributing to projects that aid in...


  • Toronto, ON, Canada Obsidian Full-time

    Join Mercor as an Expert Telugu Document Annotation Specialist, leveraging your language skills to refine document AI capabilities. This role emphasizes accuracy and systematic analysis of various Telugu documents. As a native Telugu speaker, you will engage in detailed document annotation and transcription, contributing to projects that aid in...

  • AI Trainer

    5 days ago


    Toronto, ON, Toronto Census Division, ON; Ontario, Canada Toloka Annotators Full-time €23 Temporary

    Overview This opportunity is only for candidates currently residing in the specified country. Your location may affect eligibility and rates. Please submit your resume in English and indicate your level of English. At Toloka, we connect smart, curious people from around the world with freelance online tasks that train and improve artificial intelligence. ...


  • Toronto, ON, Toronto Census Division, ON; Ontario, Canada Mercor Full-time

    Mercor is seeking a meticulous native Japanese speaker for a data annotation role focused on Japanese documents. You will extract and annotate page structures, bound regions, and reading orders for training data used in document AI projects. Accuracy and consistency are critical as you work with complex layouts including vertical text and multi-column...


  • Toronto, ON, Toronto Census Division, ON; Ontario, Canada Rex.zone Full-time

    Remote Data Labeling Jobs in Canada (Full Time) Rex.zone supports AI/ML training pipelines through data labeling, RLHF evaluation, prompt evaluation, and QA checks. You will apply annotation guidelines compliance to improve training data quality for large language models and computer vision systems. About The Role You will label and evaluate text,...


  • Toronto, ON, Toronto Census Division, ON; Ontario, Canada Mercor Full-time

    Fluent Language Skills Required: Telugu. Native fluency in Telugu, including full command of Telugu script and orthography, is required for this position. All annotation and transcription work is performed in Telugu. Why This Role Exists Document understanding breaks down fastest in the languages that parsing and vision-language models rarely see. This...