Jobs for data annotator at Toronto

1,000 data annotator job listings in Canada. Find daily updated positions from leading job boards.


  • Toronto, ON, Canada SELLIT9 Full-time €110,000 - €170,000 Contract

    About the Role SELLIT9 runs on one number: what a used device is worth. Two models decide whether we get that number right, and you'll own both. The first is pricing. We're building an append-only, point-in-time-correct dataset of competitor payouts, retail prices, and resale comps, built specifically to be trained on. The deterministic version ships...

  • Finance Business Analyst Premium

    10 hours ago


    Toronto, Ontario, Canada Discover Your Next Opportunity Below Full-time $102,090 - $130,000 Contract

    As a Finance Business Analyst (Business Transformation), you will be a key architect of change within our Finance organization. Your mission is to evolve our financial ecosystem from manual, reactive reporting to automated, proactive strategic intelligence. This new role will partner with our Digital Transformation (DX) and IT teams to implement...


  • Toronto, Ontario, Canada Source Code Full-time

    RQ09756/RQ09775 - Sr. Training Specialist About the job RQ09756/RQ09775 - Sr. Training Specialist RQ09756/RQ09775 - Sr. Training SpecialistOn-site - Manager's discretionContract 6-7+ monthsSecurity Level: CRJMC (must get clearance before start date)Support sandbox data preparation and environment setup for training and testing purposes within Microsoft...

  • Engineer, AI Premium

    10 hours ago


    Toronto, Canada Magna International Full-time $95,000 - $145,000 Contract

    Job descriptions may display in multiple languages based on your language selection.What we offer:At Magna, you can expect an engaging and dynamic environment where you can help to develop industry-leading automotive technologies. We invest in our employees, providing them with the support and resources they need to succeed. As a member of our global team,...


  • Toronto, Ontario, Canada Obsidian Full-time

    Role OverviewMercor is partnering with leading AI labs to engage experienced cybersecurity professionals — security analysts, penetration testers, incident responders, threat intelligence specialists, and security architects — to improve AI systems' reasoning around threat detection, vulnerability assessment, and security operations. Contributors will...

  • Aerospace Engineer

    2 days ago


    Toronto, ON, Canada YO IT Consulting Full-time $90,000 - $120,000 Contract

    Job Type: Contractor Location: Remote Role Description If you’re an aerospace engineering expert who thrives on technical precision, systems thinking, and rigorous analysis, this is a unique opportunity to contribute directly to how the next generation of AI systems reason about flight, propulsion, structures, aerodynamics, controls, and mission‑critical...

  • AI Session Reviewer

    10 hours ago


    Toronto, ON, Canada Mercor Full-time

    About the RoleMercor is hiring English-speaking reviewers to evaluate recorded sessions with a voice-and-camera AI assistant. You will watch each session, compare what the assistant said against what was actually visible in the video, and score it against a detailed rubric.Your written comments are the deliverable. What you flag as a failure is what gets...


  • Toronto, Ontario, Canada Socket.dev Full-time

    WHO WE ARE: Peripheral is developing spatial intelligence, starting in live sports and entertainment. Our models generate spatial data, used for advanced sports analytics and immersive media experiences. We’re solving key research challenges in 3D computer vision, creating the foundations for the next generation of robotic perception and embodied...


  • Toronto, Ontario, Canada Jaide Health Full-time

    WHO WE ARE: Peripheral is developing spatial intelligence, starting in live sports and entertainment. Our models generate spatial data, used for advanced sports analytics and immersive media experiences. We’re solving key research challenges in 3D computer vision, creating the foundations for the next generation of robotic perception and embodied...


  • Toronto, ON, Canada Crossing Hurdles Full-time

    This range is provided by Crossing Hurdles. Your actual pay will be based on your skills and experience — talk with your recruiter to learn more. Base pay range $50.00/hr - $90.00/hr Direct message the job poster from Crossing Hurdles At Crossing Hurdles, we work as a referral partner. We refer candidates to our partner that collaborates with world’s...

  • Copywriter - Remote

    2 days ago


    Toronto, ON, Canada YO IT Consulting Full-time $41,328 - $68,880 Contract

    Job Type: Contract, Part-time Location: Remote Role Description In this hourly, remote contractor role, you will work as a Copywriting & Content Subject Matter Expert (SME) to review AI-generated marketing/content-writing outputs and/or create expert copy and content, evaluating reasoning quality, intent alignment, and step-by-step writing decisions while...

  • AI Vision Engineer

    3 days ago


    Toronto, Ontario, Canada Nexxa.AI Full-time

    Nexxa is building the best AI systems for heavy industries — enabling machines, systems and operations to think, decide and act autonomously across manufacturing, large-scale infrastructure, logistics and legacy environments.Our mission is to translate deep technical breakthroughs into operational reality, solving some of the hardest systems-level problems...


  • Toronto, Ontario, Canada Jaide Health Full-time

    WHO WE ARE: Peripheral is developing spatial intelligence, starting in live sports and entertainment. Our models generate spatial data, used for advanced sports analytics and immersive media experiences. We're solving key research challenges in 3D computer vision, creating the foundations for the next generation of robotic perception and embodied...

  • Security Analyst

    1 day ago


    Toronto, ON, Canada Obsidian Full-time $322,875 - $396,675 Contract

    Role OverviewMercor is partnering with leading AI labs to engage experienced cybersecurity professionals — security analysts, penetration testers, incident responders, threat intelligence specialists, and security architects — to improve AI systems' reasoning around threat detection, vulnerability assessment, and security operations. Contributors will...


  • Toronto, ON, Canada Mindrift Full-time

    Freelance Software Developer (Java) - Quality Assurance (AI Trainer) 3 days ago – Be among the first 25 applicants Get AI-powered advice on this job and more exclusive features. 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...

  • Rq00736 Premium

    10 hours ago


    Toronto, Ontario, Canada Source Code Full-time $92 - $110 Permanent

    RQ00736 - Specialized IT Consultant - Senior 1 Year contract - Hybrid(3 Days) /remote also possible for candidates outside of GTA+ 2 Possible extensions of 6 months eachLocation : Metro Hall – 55 John Street, 2nd Fl Must Haves: This is a Maximo Functional Consulting Role 1. 10+ years hands-on Maximo configuration experience...


  • Toronto, Canada Welo Global Remote Full-time

    As a trusted global transformation partner, Welocalize accelerates the global business journey by enabling brands and companies to reach, engage, and grow international audiences. Welocalize delivers multilingual content transformation services in translation, localization, and adaptation for over 250 languages with a growing network of over 400,000...

  • Platform Engineer-6

    2 days ago


    Toronto, ON, Canada REALIGN LLC Full-time

    Job Type: Full Time Job Category: IT Job Description Job Title: Platform Engineer Location: Toronto, Ontario (ON) Work Arrangement: Onsite – 4 Days Job Type: Full Time We are seeking an experienced Platform Engineer to join a growing Wealth Management Data Management & Insights (DMI) team. The role focuses on platform engineering, automation, DevOps,...


  • Toronto, ON, Canada Altis Labs Full-time €120,000 - €160,000 Contract

    What We Do We build AI models to enable smaller, faster, and more successful clinical trials. What We Do We build AI models to enable smaller, faster, and more successful clinical trials. About Altis Labs Altis Labs is a computational imaging company focused on improving how oncology trials measure treatment benefit. Our core technology is IPRO, an AI...


  • Toronto, Ontario, Canada S27a Full-time

    WHO WE ARE: Peripheral is developing spatial intelligence, starting in live sports and entertainment. Our models generate spatial data, used for advanced sports analytics and immersive media experiences. We’re solving key research challenges in 3D computer vision, creating the foundations for the next generation of robotic perception and embodied...