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 through Multilingual Transcription Audit and Forced Alignment Audit .
- Review recordings and transcriptions to ensure accuracy using a fixed set of error codes.
- Verify audio segments for correct timestamp alignment and transcription accuracy.
- Correct errors by adjusting boundaries, splitting or merging segments, and adding or removing segments as needed.
- Provide detailed written rationales for each judgment to improve AI model performance .
- Work independently with a focus on careful listening and consistent rubric application .

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, linguistic annotation, or QA.
- Ability to distinguish similar sounds and identify word boundaries in continuous speech.

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

Application Process (Takes 20–30 mins to complete)
- Upload resume
- AI interview based on your resume
- Submit form

Resources & Support
- For details about the interview process and platform information, please check:
- For any help or support, reach out to:

PS: Our team reviews applications daily. Please complete your AI interview and application steps to be considered for this opportunity.
hiringmercor

📌 Spanish Transcription Specialist (Madrid)
🏢 Mercor
📍 Madrid