Jobs for data annotator at Toronto

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


  • 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...

  • Medical Editor

    4 days ago


    Toronto, ON, Toronto Census Division, ON; Ontario, Canada Klick Full-time €70,000 - €80,000 Temporary

    The Klick Group— comprising Klick Health (including Oxford PharmaGenesis, Klick Katalyst, and btwelve), Klick Media, Klick Applied Sciences (including Klick Labs), and Klick Consulting—is an ecosystem dedicated help life sciences brands achieve their full potential through best-in-class marketing and advertising, media, medical affairs and...

  • 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,...

  • AI Modeling Engineer

    2 hours ago


    Toronto, Ontario, Canada Palona AI Full-time

    Palona’s AI agents operate in real restaurant environments: noisy phone lines, varied accents, complex menus, interruptions, incomplete information, strict business rules, and customers who expect an immediate, natural response. Improving these systems requires more than selecting the newest model. It requires disciplined evaluation, high-quality data,...


  • Toronto, ON, Canada Altis Labs, Inc. Full-time

    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 model that generates patient-level outcome predictions directly from routine medical imaging data....

  • VP, Experience

    1 day ago


    Toronto, ON, Canada APPLY Full-time €140,000 - €220,000 Contract

    ABOUT APPLY APPLY is the Agentic Customer Experience (ACx) partner for the world’s most ambitious consumer and entertainment brands. We bring together deep domain expertise across Retail, CPG, Sports, and Media with AI-native delivery capability, designing and delivering agentic solutions that turn CX vision into commercial reality. We are the partner of...

  • Rq09609 Premium

    10 hours ago


    Toronto, Ontario, Canada Rubicon Path Full-time

    Deliverables - Work with Business Analysts / UX & UI Designer / Product Manager / Cloud Architect, base on storyboard, user stories, UI/UX artefacts, solution architecture, security requirements, data models, develop application design and technical specification document, deliver quality software products (including Minimal Viable Products and...

  • ML Engineering Intern Premium

    10 hours ago


    Toronto, Ontario, Canada Peripheral Full-time $65,000 - $75,000 Contract

    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...

  • ML Engineering Intern Premium

    10 hours ago


    Toronto, Ontario, Canada Peripheral Full-time $65,000 - $75,000 Contract

    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 Dorado Full-time

    Italian Audio Transcriptionist (AI Training) About the Role What if your ability to catch every word, pause, and nuance in spoken Italian could directly shape how AI understands one of the world's most beautiful languages? We're looking for detail-oriented Italian transcriptionists — including Toronto's large and culturally rich Italian-speaking community...


  • Toronto, ON, Canada Benchstrength Full-time

    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 model that generates patient-level outcome predictions directly from routine medical imaging data....


  • Toronto, ON, Canada Fashion Institute of Design & Merchandising Full-time

    At HDR, our employee‑owners are fully engaged in creating a welcoming environment where each of us is valued and respected, a place where everyone is empowered to bring their authentic selves and novel ideas to work every day. As we foster a culture of inclusion throughout our company and within our communities, we constantly ask ourselves: What is our...


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

    Join the team engineering electro-photonic silicon for AI, HPC, data centers, and Physical AI, from Toronto and Utrecht. About the role Lead digital block and SoC development from architecture through verification, synthesis, and lab support on mixed-signal and interconnect programs. Responsibilities Lead digital development and design projects end to...


  • Toronto, ON, Canada Mercor Remote Full-time $112,000 - $167,000 Contract

    Location: Remote Fluent Language Skills Required: English & Portuguese (global, excluding Brazilian Portuguese). Native fluency in English and Portuguese (global, excluding Brazilian Portuguese) is required for this position. Why This Role Exists At Mercor, we believe the safest AI is the one that’s already been attacked — by us. We are assembling a red...


  • Toronto, ON, Toronto Census Division, ON; Ontario, Canada Crossing Hurdles Full-time €40 Temporary

    Position: AI Data Reviewer Type: Contract Compensation: $25 - $40/hour Location: Remote Commitment: 10-40 hrs/week Responsibilities: Review and analyze screenshots of diverse software interfaces, identifying UI elements and interpreting user workflows with precision. Evaluate and annotate AI model responses, ensuring judgments are...

  • Remote Logistics

    3 days ago


    Toronto, ON, Canada YO IT Consulting Full-time

    Job DescriptionJob DescriptionRole Title: Logistics & Supply Chain Management ExpertRole Type: ContractLocation: RemoteScope Of WorkReview, analyze, and provide input on logistics documents such as packing lists, bills of lading, and inventory registers for authenticity, accuracy, and industry compliance.Develop and annotate sample documentation to highlight...


  • Toronto, Canada SME Careers Full-time €28,000 - €48,000 Contract

    In this hourly, remote contractor role, you will work as a Finnish Language Specialist (SME) to review AI-generated Finnish content and/or create high-quality Finnish reference content, evaluating language quality and step-by-step reasoning while providing precise written feedback. You will assess outputs for accuracy, fluency, grammar, spelling, tone,...


  • Toronto, ON, Canada HDR Full-time $57,000 - $82,000 Contract

    At HDR, our employee-owners are fully engaged in creating a welcoming environment where each of us is valued and respected, a place where everyone is empowered to bring their authentic selves and novel ideas to work every day. As we foster a culture of inclusion throughout our company and within our communities, we constantly ask ourselves: What is our...

  • Student, Analytics

    2 days ago


    Toronto, ON, Canada Sun Life Financial Full-time

    At Sun Life, we’re driven by our Purpose: helping our Clients achieve lifetime financial security and live healthier lives. Our values shape how we work: caring, authentic, bold, inspiring, and impactful. Our student and new graduate programs offer a chance to explore Sun Life from the inside. You’ll make a difference in the lives of our customers and...


  • Toronto, Ontario, Canada Source Code Full-time

    RQ11124 - Sr. Software Developer - Full Stack 11-month contract (213 business days) - possible extension Hybrid - 87 Sir William Hearst Ave., Toronto, Ontario M3M 0B4 Must have Entity Framework or other Object-Relational Mapping data access tools REST APIs REST and NEXTJS JavaScript and TypeScript SQL experience Node.js Knowledgeable in Web Content...