Jobs for data annotator at Toronto
197 data annotator job listings in Canada. Find daily updated positions from leading job boards.
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Data Annotation Specialist Premium
1 week ago
Toronto, Ontario, Canada Cohere Remote Full-time $30Who are we? Cohere is the leading security-first enterprise AI company. We build cutting-edge foundation AI models and end-to-end products that are designed to solve real-world business problems. We’re training and deploying frontier models for enterprises who are building AI systems. We believe that our work is instrumental to the widespread adoption of...
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Data Annotation Specialist Premium
2 weeks ago
Toronto, Ontario, Canada AfterQuery Experts Remote Full-time US$25 - US$60This is a remote, project-based role for experienced practitioners across any professional domain who can apply their real-world expertise to data annotation tasks. You will review, label, and evaluate data samples — including text, documents, model outputs, and domain-specific content — providing expert judgment, structured annotations, and reasoned...
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Senior AI Data Annotation Jobs in Toronto Premium
2 weeks ago
Toronto, Ontario, Canada Rex.zone Remote Full-time US$30 - US$50Rex.zone is hiring senior contributors to lead AI data annotation and QA evaluation workstreams that improve training data quality for modern AI/ML systems. This is a remote, full-time role aligned to real-world LLM training pipelines across NLP, computer vision, and content safety domains. About The Role You will translate product and research goals into...
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Data Scientist Premium
4 days ago
Toronto, Ontario, Canada Alignerr Remote Full-time US$40 - US$80Data Scientist (Masters) — AI Data Trainer About The Role What if your expertise in machine learning, statistical inference, and data engineering could directly shape how the world's most advanced AI models think and reason? We're looking for Masters-level data scientists to challenge, stress-test, and refine cutting-edge AI systems — helping ensure...
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Machine Learning Engineer IV, Data Premium
3 hours ago
Toronto, Ontario, Canada ACV Full-timeWhat you will do: ACV's Machine Learning organization is looking for a talented Machine Learning Engineer IV to join our ML inspection team. In this role, you'll drive end-to-end computer vision solutions processing hundreds of thousands of vehicle inspections annually into reliable, actionable insights, directly reducing inspection turnaround time,...
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Machine Learning Engineer III, Data Premium
3 hours ago
Toronto, Ontario, Canada ACV Full-timeWhat you will do: ACV's Machine Learning organization is looking for a talented Machine Learning Engineer III to join our ML inspection team. In this role, you'll drive end-to-end computer vision solutions processing hundreds of thousands of vehicle inspections annually into reliable, actionable insights, directly reducing inspection turnaround time,...
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Data Administrator Premium
3 hours ago
Toronto, Ontario, Canada Ample Insight Remote Full-timeCompany DescriptionYou will join a world-class team of engineers and data scientists from Facebook, Uber, Amazon and Google. We are a fast growing consulting firm based in Toronto with clients ranging from leading startups building impactful technologies to Fortune 500 companies looking to scale their engineering and data capabilities. Job DescriptionTo...
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Medical Data Analyst Premium
5 days ago
Toronto, Ontario, Canada Aimbient (formerly SST) Full-time $43,000Aimbient (formerly Surgical Safety Technologies) is a fast-growing healthcare technology start-uplocated in the heart of Toronto, Canada. The Aimbient Suite is a platform that captures some of the world’s most valuable data from surgery and allows hospitals to identify, understand, and mitigate risk. The Aimbient Platform is implemented in several of the...
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Precision Medicine Data Lead Premium
6 days ago
Toronto, Ontario, Canada Alignerr Remote Full-time US$40 - US$80Precision Medicine Data Lead (AI Training) About The Role What if your expertise in genomics and clinical data could directly shape how AI understands and advances personalized medicine for millions of patients worldwide? We're looking for a Precision Medicine Data Lead to help guide the integration, governance, and transformation of complex healthcare...
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Hospital Health Data Governance Lead Premium
6 days ago
Toronto, Ontario, Canada Alignerr Remote Full-time US$40 - US$80Hospital Health Data Governance Lead (AI Training) About The Role What if your expertise in healthcare data governance could directly shape how AI understands and reasons about hospital systems, clinical records, and health compliance? We're looking for experienced Hospital Health Data Governance Leads to bring real-world knowledge to cutting-edge AI...
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Biotech Health Data Governance Lead Premium
6 days ago
Toronto, Ontario, Canada Alignerr Remote Full-time US$40 - US$80Biotech Health Data Governance Lead (AI Training) About The Role What if your expertise in biotech data governance could directly shape how AI understands and works with clinical and research data — accelerating scientific discovery and improving how life sciences organizations operate at scale? We're looking for a Biotech Health Data Governance Lead to...
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FPGA Manager Premium
3 hours ago
Toronto, Ontario, Canada Kepler Communications Full-timeAt Kepler Communications, we're not just imagining the future of on-demand space connectivity - we're leading it! Our mission is to provide real-time on-orbit connectivity for critical missions, enabling a new era of data-driven intelligence and innovation. With 33 satellites launched to date, Kepler operates the first commercial optical data relay...
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Chemistry Masters Premium
3 days ago
Toronto, Ontario, Canada Alignerr Remote Full-time US$35 - US$55Chemistry Masters — AI Data Trainer About The Role We're looking for chemistry experts to help train and improve the next generation of AI models. At Alignerr, we partner with the world's leading AI research labs — and we need people who truly understand chemistry to help AI think more rigorously about it. If you have a Master's in Chemistry, Chemical...
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ML Engineer Premium
3 hours ago
Toronto, Ontario, Canada CreatorIQ Full-time $150,000 - $188,000CreatorIQ is the operating system for creator-led growth trusted by more than 1,300 global brands and agencies.We’re on a mission to make businesses more human, and humans more impactful. We operate by our values — be intentional, pursue excellence every day, embrace the journey together, and be a good human — every day. CreatorIQ has earned the title...
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Remote Chemistry Expert Premium
2 days ago
Toronto, Ontario, Canada Turing Remote Full-timeAbout Turing: Based in San Francisco, California, Turing is the world’s leading research accelerator for frontier AI labs and a trusted partner for global enterprises deploying advanced AI systems. Turing supports customers in two ways: first, by accelerating frontier research with high-quality data, advanced training pipelines, plus top AI researchers who...
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Remote Mathematics Expert Premium
2 days ago
Toronto, Ontario, Canada Turing Remote Full-timeAbout Turing: Based in San Francisco, California, Turing is the world’s leading research accelerator for frontier AI labs and a trusted partner for global enterprises deploying advanced AI systems. Turing supports customers in two ways: first, by accelerating frontier research with high-quality data, advanced training pipelines, plus top AI researchers who...
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Principal Python Engineer — ML Infrastructure Premium
4 days ago
Toronto, Ontario, Canada Alignerr Remote Full-time US$50 - US$75Principal Python Engineer — ML Infrastructure (AI Training) About The Role What if your Python expertise could directly shape the infrastructure that powers the most advanced AI systems in the world? We're looking for a Principal Python Engineer in Toronto to design and build the data pipelines, annotation tooling, and evaluation systems that leading AI...
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Rq09756/Rq09775 Premium
3 hours ago
Toronto, Ontario, Canada Source Code Full-timeRQ09756/RQ09775 - Sr. Training Specialist Toronto (College/Bay) On-site - Manager's discretion 2 Roles/2 vacancies Contract 6-7+ months Security Level: CRJMC (must get clearance before start date)Support sandbox data preparation and environment setup for training and testing purposes within Microsoft Dynamics 365 CE and F&O.Create role-based test case...
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Rq09196 Premium
3 hours ago
Toronto, Ontario, Canada Rubicon Path Full-timeDescriptionHybrid Work Environment: The successful candidate is expected to work onsite at 222 Jarvis St 3 days per week, and may work remotely up to 2 days per week. Responsibilities Required to translate technical systems specifications into working, tested applications. This includes:Developing detailed programming specificationsWriting and/or...