dataannotation

5,485 dataannotation job listings in United States. Find daily updated positions from leading job boards.


  • Montgomery, AL, United States DataAnnotation Full-time

    Models blur the line between what's established, what's contested, and what's simply made up in the life sciences, and they cite papers that don't exist. As a Biologist you'll hold AI biological reasoning to the standard of the literature and write answers that get the science right. What you’ll actually do Write prompts that probe biological reasoning:...

  • Quantum Chemist

    2 days ago


    Denver, CO, United States DataAnnotation Full-time

    Models routinely propose impossible mechanisms, unsafe procedures, and syntheses that no bench chemist would attempt. As a Chemist you'll evaluate AI chemical reasoning, catch what's wrong or unsafe, and write the answers a trained chemist would give. What you’ll actually do Write prompts that probe chemical reasoning: mechanisms, synthesis routes, and...

  • Slovakian Tutor

    2 days ago


    New York, NY, United States DataAnnotation Full-time

    Evaluate AI on Slovak translation, localization, and cultural nuance across real projects. You’ll evaluate AI on real languages work, analyze what the models get wrong, and help train the next generation of AI. Flexible, remote, and always project-available. What you’ll actually do Review what frontier models produce on real languages tasks and rate...

  • Systems Biologist

    3 hours ago


    Austin, TX, United States DataAnnotation Full-time

    The newest models can vibe-code a whole feature in minutes. Someone has to check whether that code actually works, and that someone is you. You'll run agentic coding sessions on real engineering tasks, analyze what the models produce, and red-team them until they fail in interesting ways. Every failure you document teaches the next generation of coding...


  • Oklahoma City, OK, United States DataAnnotation Full-time

    Models can recite physics and still get it wrong: dimensional errors, misapplied approximations, and derivations that skip the step where the physics actually happens. As a Physicist you'll evaluate AI reasoning across mechanics, E&M, quantum, and thermodynamics, and write solutions with the care of a good problem-set grader. What you’ll actually do Craft...


  • Sacramento, CA, United States DataAnnotation Full-time

    Models can recite physics and still get it wrong: dimensional errors, misapplied approximations, and derivations that skip the step where the physics actually happens. As a Physicist you'll evaluate AI reasoning across mechanics, E&M, quantum, and thermodynamics, and write solutions with the care of a good problem-set grader. What you’ll actually do Craft...

  • Gujarati Specialist

    2 days ago


    New York, NY, United States DataAnnotation Full-time

    Pay: up to $25 – $40 /hour (depends on task difficulty and specialization) Location: Remote · Type: Independent contractor · Hours: Flexible hours · Payouts: Weekly Overview Evaluate AI on Gujarati translation, localization, and cultural nuance across real projects. You’ll evaluate AI on real languages work, analyze what the models get wrong, and...


  • Hartford, CT, United States DataAnnotation Full-time

    Models blur the line between what's established, what's contested, and what's simply made up in the life sciences, and they cite papers that don't exist. As a Biologist you'll hold AI biological reasoning to the standard of the literature and write answers that get the science right. What you’ll actually do Write prompts that probe biological reasoning:...

  • Molecular Modeler

    2 days ago


    New York, NY, United States DataAnnotation Full-time

    Models routinely propose impossible mechanisms, unsafe procedures, and syntheses that no bench chemist would attempt. As a Chemist you'll evaluate AI chemical reasoning, catch what's wrong or unsafe, and write the answers a trained chemist would give. What you’ll actually do Write prompts that probe chemical reasoning: mechanisms, synthesis routes, and...


  • Sacramento, CA, United States DataAnnotation Full-time

    Models can recite physics and still get it wrong: dimensional errors, misapplied approximations, and derivations that skip the step where the physics actually happens. As a Physicist you'll evaluate AI reasoning across mechanics, E&M, quantum, and thermodynamics, and write solutions with the care of a good problem-set grader. What you’ll actually do Craft...

  • Specialist

    3 hours ago


    New York, NY, United States DataAnnotation Full-time

    Pay: up to $25 – $40 /hour (depends on task difficulty and specialization) Location: Remote · Type: Independent contractor · Hours: Flexible hours · Payouts: Weekly Overview Evaluate AI on Croatian translation, localization, and cultural nuance across real projects. You’ll evaluate AI on real languages work, analyze what the models get wrong, and help...

  • Icelandic Specialist

    3 hours ago


    New York, NY, United States DataAnnotation Full-time

    Pay: up to $25 - $40 /hour (depends on task difficulty and specialization) Location: Remote Type: Independent contractor Hours: Flexible hours Payouts: Weekly Overview Evaluate AI on Icelandic translation, localization, and cultural nuance across real projects. You’ll evaluate AI on real languages work, analyze what the models get wrong, and help train the...

  • Training Developer

    3 hours ago


    Lincoln, NE, United States DataAnnotation Full-time

    Models can recite physics and still get it wrong: dimensional errors, misapplied approximations, and derivations that skip the step where the physics actually happens. As a Physicist you'll evaluate AI reasoning across mechanics, E&M, quantum, and thermodynamics, and write solutions with the care of a good problem-set grader. What you’ll actually do Craft...

  • Marathi Specialist

    3 hours ago


    New York, NY, United States DataAnnotation Full-time

    Pay: up to $25 – $40 /hour (depends on task difficulty and specialization) Location: Remote · Type: Independent contractor · Hours: Flexible hours · Payouts: Weekly Overview Evaluate AI on Marathi translation, localization, and cultural nuance across real projects. You’ll evaluate AI on real languages work, analyze what the models get wrong, and...

  • Croatian Specialist

    2 hours ago


    New York, NY, United States DataAnnotation Full-time

    Pay: up to $25 – $40 /hour (depends on task difficulty and specialization) Location: Remote · Type: Independent contractor · Hours: Flexible hours · Payouts: Weekly Overview Evaluate AI on Croatian translation, localization, and cultural nuance across real projects. You’ll evaluate AI on real languages work, analyze what the models get wrong, and help...

  • Finnish Specialist

    3 hours ago


    New York, NY, United States DataAnnotation Full-time

    Pay: up to $25 – $40 /hour (depends on task difficulty and specialization) Location: Remote · Type: Independent contractor · Hours: Flexible hours · Payouts: Weekly Overview Evaluate AI on Finnish translation, localization, and cultural nuance across real projects. You’ll evaluate AI on real languages work, analyze what the models get wrong, and...

  • Training Developer

    3 hours ago


    Oklahoma City, OK, United States DataAnnotation Full-time

    Models can recite physics and still get it wrong: dimensional errors, misapplied approximations, and derivations that skip the step where the physics actually happens. As a Physicist you'll evaluate AI reasoning across mechanics, E&M, quantum, and thermodynamics, and write solutions with the care of a good problem-set grader. What you’ll actually do Craft...

  • Telugu Specialist

    3 hours ago


    New York, NY, United States DataAnnotation Full-time

    Pay: up to $25 – $40 /hour (depends on task difficulty and specialization) Location: Remote · Type: Independent contractor · Hours: Flexible hours · Payouts: Weekly Overview Evaluate AI on Telugu translation, localization, and cultural nuance across real projects. You’ll evaluate AI on real languages work, analyze what the models get wrong, and help...

  • Call Specialist

    2 days ago


    New York, NY, United States DataAnnotation Full-time

    Pay: up to $25 – $40 /hour (depends on task difficulty and specialization) Location: Remote · Type: Independent contractor · Hours: Flexible hours · Payouts: Weekly Overview Evaluate AI on Czech translation, localization, and cultural nuance across real projects. You’ll evaluate AI on real languages work, analyze what the models get wrong, and help...

  • Czech Specialist

    2 days ago


    New York, NY, United States DataAnnotation Full-time

    Pay: up to $25 – $40 /hour (depends on task difficulty and specialization) Location: Remote · Type: Independent contractor · Hours: Flexible hours · Payouts: Weekly Overview Evaluate AI on Czech translation, localization, and cultural nuance across real projects. You’ll evaluate AI on real languages work, analyze what the models get wrong, and help...