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: Sonic Audit Specialist - Spanish
Type: Contract
Compensation: $40/hour
Location: Remote
Role Responsibilities
- Evaluate AI training data in Spanish by auditing multilingual transcription and forced alignment tasks.
- Review and judge transcriptions for accuracy, applying error codes and providing rationale for decisions.
- Verify and correct audio segment timestamps to ensure alignment with spoken words.
- Provide structured feedback to improve AI model training and data quality .




- Work independently with adaptable hours to complete tasks with precision.

Qualifications Must-Have
- Native or near-native command of Spanish as spoken in Spain.
- Strong English reading and writing skills.
- Experience in transcription, subtitling, localization, or linguistic annotation.
- Ability to apply a disciplined rubric consistently.

Preferred
- Prior experience in AI data annotation or model evaluation.
- Background in phonetics or linguistics .
- Experience with audio editing or waveform tools .

📌 Transcription Quality Specialist (Chamartín)
🏢 Mercor
📍 Chamartín