Video Caption Auditor Expert

We're looking for detail-oriented annotators to join a short-term, fast-moving project reviewing captions on egocentric (first-person) video — footage recorded from a head-mounted camera showing someone's hands performing everyday tasks like cooking, cleaning or crafting. You'll audit whether a written caption accurately describes what happens in a short video segment, and give each caption a clear verdict. The project is already underway, so we're prioritising people who can start quickly.

What You'll Do

For each video segment and its caption, you'll decide:

• Approve — the caption accurately describes the action

• Reject — the caption has an error, rated Major or Minor, with the reason(s), for example:

  • Wrong main verb (e.g. "wring" when the person is rubbing)

  • A main action that is added, missing or out of order

  • Wrong object or tool, or the wrong / swapped hand (left vs. right)

• Exclude — the footage itself is unusable (corrupted, badly mounted camera, broken segment boundaries)

• You'll follow a detailed written guideline with clear rules and examples, and judge only what is visible in each segment.

Who We're Looking For

• Excellent attention to detail and patience for careful, repetitive visual review

• Reliable left/right reasoning from the camera wearer's point of view

• Strong English reading comprehension and a precise sense of word meaning (e.g. the difference between "wipe", "rub" and "scrub")

• Ability to learn a detailed guideline quickly and apply it consistently

• Good judgment on ambiguous cases

• Nice to have: prior experience in video annotation, data labelling, content moderation, QA, or AI training/evaluation work.

Why Join Us?

• Contribute to Cutting-Edge AI Development: Play a direct role in improving how advanced AI models understand and interpret real-world human actions through first-person video.

• Flexible, Remote Work: Work from anywhere while contributing to a structured, high-impact AI annotation project.

• Clear Guidelines and Expectations: Benefit from detailed instructions, practical examples, and well-defined evaluation criteria to help you deliver high-quality work.

• Apply Your Attention to Detail: Put your observational skills, language comprehension, and critical thinking to work on meaningful AI evaluation tasks.

• Opportunity for Future Projects: Strong performance may open doors to additional AI training, annotation, and evaluation opportunities.

• Quick Onboarding: Join an active project with an accelerated onboarding process, allowing qualified candidates to begin contributing promptly.

We consider all qualified applicants without regard to legally protected characteristics and provide reasonable accommodations upon request.

Contract and Payment Terms

• You will be engaged as an independent contractor.
• This is a fully remote role that can be completed on your own schedule.
• Projects can be extended, shortened, or concluded early depending on needs and performance.
• Your work at Mercor will not involve access to confidential or proprietary information from any employer, client, or institution.
• Payments are weekly on Stripe or Wise based on services rendered.
• Please note: We are unable to support H1-B or STEM OPT candidates at this time.

About Mercor

Mercor partners with leading AI labs and enterprises to train frontier models using human expertise. You will work on projects that focus on training and enhancing AI systems. You will be paid competitively, collaborate with leading researchers, and help shape the next generation of AI systems in your area of expertise.