Spanish Annotation Expert - AI Trainer

Mercor; San Francisco (CA); Híbrido; MXN 299.000 - 449.000; A tiempo parcial

Descripción de la vacante

Mercor connects elite creative and technical talent with leading AI research labs. This AI Session Annotator role, conducted remotely, requires native Mexican Spanish, precise writing, and strong English reading skills.

You will review AI sessions via voice/video, score quality on multiple criteria, and document evidence for each assessment. The position is a contract engagement with immediate start and high-volume workload, ideal for detail-oriented linguists with a background in data

Formación

• Must-Have: Native or native-level Mexican Spanish, spoken and written.
• Must-Have: Clear, precise written Spanish.
• Must-Have: An Android phone with a working camera and microphone.
• Must-Have: Attention to detail and consistent rubric application.
• Must-Have: Professional English reading comprehension.
• Preferred: Experience in data annotation, linguistic QA, content moderation, or AI model evaluation.
• Preferred: Training in linguistics, translation, or interpreting.
• Preferred: Ability to recognize non-Mexican Spanish registers.

Responsabilidades

• Review recorded sessions where users interact with an AI assistant via voice and camera.
• Compare assistant responses with visible video content, identifying hallucinated or fabricated details.
• Score sessions on visual interpretation, accuracy, relevance, and response timing.
• Evaluate the assistant's use of spatial and directional language and its warnings on health, safety, or financial security.
• Write detailed comments supporting each score with evidence from the session.
• Capture conversation turns in the intake form.

Conocimientos

Mexican Spanish

Written Spanish

Android device

Attention to detail

English reading

Rubric application

Educación

Linguistics training

Descripción del empleo

About the job

Mercor connects elite creative and technical talent with leading AI research labs. Headquartered in San Francisco, our investors include Benchmark , General Catalyst , Peter Thiel , Adam D'Angelo , Larry Summers , and Jack Dorsey .

Position Details

Position: AI Session Annotator (Mexican Spanish)

Type: Contract

Compensation: $12–$18/hour

Location: Remote

Role Responsibilities

Review recorded sessions where users interact with an AI assistant via voice and camera. Compare assistant responses with visible video content, identifying hallucinated or fabricated details. Score sessions on visual interpretation, accuracy, relevance, and response timing. Evaluate the assistant's use of spatial and directional language and its warnings on health, safety, or financial security. Write detailed comments supporting each score with evidence from the session. Capture conversation turns in the intake form.

Qualifications

• Must-Have: Native or native-level Mexican Spanish , spoken and written. Clear, precise written Spanish. An Android phone with a working camera and microphone. Attention to detail and consistent rubric application. Professional English reading comprehension.
• Preferred: Experience in data annotation, linguistic QA, content moderation, or AI model evaluation. Training in linguistics, translation, or interpreting. Ability to recognize non-Mexican Spanish registers.

Start Date

Immediate ; high volume of work expected between 26 to 31 Aug .