Project Cursa - Robot Manipulation Video Annotation QC (V2)

Welo Global; México; Remote; MXN 86,000 - 122,000; Full time

Benefits offered by this job

Fully remote

Flexible project-based opportunities

Global contributor community

Work on your terms

Job summary

Welo Data is seeking a detail-oriented QC Reviewer to verify robot manipulation video annotations. You will audit labeling across three detail levels, cross-check against all camera views, and ensure complete coverage with accurate, style-compliant descriptions.

Role emphasizes precise language, independent work, and providing concrete feedback to annotators. Fully remote, international collaborators welcome, with project-based opportunities.

Qualifications

• Excellent written English and strong reading comprehension to evaluate nuanced language choices.
• Exceptional attention to detail to catch subtle mismatches between video content and descriptions.
• Strong grasp of spatial/mechanical description to verify accuracy of actions and objects.
• Ability to follow a detailed style guide and make judgments in edge cases.
• Comfort giving clear, constructive feedback to annotators and working independently.

Responsibilities

• Review robot manipulation video annotations across three labeling levels: atomic motion, skill/subtask, task/goal.
• Cross-check descriptions against multiple camera views for accuracy of actions and objects.
• Verify full coverage of videos, including idle or pause moments, with no gaps.
• Flag discrepancies where outcomes are smoothed or inaccurately described.
• Ensure adherence to the style guide with consistent terminology and varied phrasing.
• Identify recurring errors and report them for calibration.
• Provide actionable feedback referencing the style guide and references.

Skills

English proficiency

Attention to detail

Spatial language

Feedback writing

Independent work

Tools

Label Studio

Job description

About the Role

We are looking for a detail-oriented QC Reviewer to ensure the quality and consistency of robot manipulation video annotations produced by our annotation team. You'll review labeled video segments against a detailed styleguide and reference examples, catch errors or inconsistencies, and provide clear, constructive feedback to annotators. This role is critical to maintaining the accuracy and reliability of training data used for robotics AI models.

What You'll Do

• Review completed annotations of robot manipulation videos across three levels of labeling detail (atomic motion, skill/subtask, task/goal).
• Cross-check annotator descriptions against all three camera views (overhead and both wrist-mounted cameras) to verify accuracy of described actions, object identification, and contact/grasp details.
• Verify full coverage of each video — confirm there are no gaps in labeling, including idle or pause moments.
• Check that descriptions accurately reflect what actually happened in the video, including failures, drops, or slipped grips — flagging any instances where outcomes were inaccurately described or "smoothed over."
• Evaluate annotations for adherence to the style guide: correct vocabulary usage, spatial/directional accuracy, consistent terminology for objects and actions, and appropriate language variation (avoiding repetitive phrasing).
• Identify recurring errors or patterns of confusion among annotators and report them to the team lead for calibration purposes.
• Provide specific, actionable feedback on rejected or revised annotations, referencing the style guide and reference examples.
• Participate in periodic calibration sessions with the team and client to align QC standards with evolving guidelines or edge-case resolutions.
• Maintain a QC log or tracking sheet documenting review outcomes, common error types, and annotator performance trends (as required by the project).

What We’re Looking For

Required:

• Excellent written English and strong reading comprehension — you'll be evaluating precise, nuanced language choices, not just checking for typos.
• Exceptional attention to detail — able to catch subtle mismatches between video content and written description (e.g., a mislabeled grasp type, an incorrect object part, a missed failure event).
• Strong grasp of spatial/mechanical description (left/right, above/below, object parts like handles, lids, edges) to verify annotator accuracy.
• Ability to apply a detailed, structured style guide consistently and make sound judgment calls in ambiguous or edge-case scenarios.
• Comfort giving clear, specific, and constructive feedback to annotators (written feedback, not just pass/fail marks).
• Reliable, self-directed work habits, with the ability to work independently while meeting review turnaround expectations.

Nice to Have:

• Prior experience in a QC, editing, proofreading, or annotation review role.
• Experience with video annotation, data labeling, or transcription QA specifically.
• Familiarity with robotics terminology (grippers, end-effectors, manipulation).
• Experience with annotation tools such as Label Studio, including review/approval workflows.

$4.03 - $4.03 an hour

Why Join Welo Data?

• Limitless Flexibility: Project-based opportunities that fit your availability. Choose when and how much you want to contribute—fully remote, with complete autonomy.
• Limitless Growth: Optional access to AI and Large Language Model workshops designed specifically for professionals like you. No coding required—just your expertise.
• Limitless Support: Be part of a global contributor community with responsive guidance and support.
• Real Impact: Apply your expertise in the Legal field to influence the AI systems shaping the future of your industry—while collaborating with data professionals and expanding your skills.

About Welo Data

Welo Data, part of Welocalize, is a global AI data company with 500,000+ contributors delivering high-quality, ethical data to train the world’s most advanced AI systems. We’re building smarter, more human AI with a diverse community in 100+ countries.

At Welo Data, Limitless AI. Limitless You. isn’t just a slogan—it’s our promise. We build smarter AI through the power of human contribution, offering limitless opportunities for our global community to grow, contribute, and work on their terms.