Your ear for the authentic sounds, rhythms, and nuances of European Spanish will directly shape how the next generation of AI understands and produces language.

This is a rare opportunity to turn your deep linguistic intuition into meaningful, well-compensated remote work — no prior AI experience required.

Why This Role

• Flexible, fully remote — work on your own schedule from anywhere.
• Meaningful impact — your expertise directly improves how AI systems represent and respect linguistic diversity.
• Specialized work — your Castilian Spanish knowledge is genuinely rare and valued here.
• Engaging variety — no two audio samples are the same; this is intellectually stimulating work.
• Potential for ongoing collaboration and contract extension based on performance.

• Listen and Evaluate: Assess AI-generated audio samples for phonetic accuracy, naturalness, and adherence to authentic Castilian Spanish patterns.
• Transcribe and Annotate: Label diverse audio samples with precision, capturing the distinct sounds and structures of Peninsular Spanish.
• Catch Model Errors: Identify and flag hallucinations, phonetic mistakes, or Latin American dialect bias that slips into model outputs.
• Analyze Prosody and Acoustics: Evaluate model performance on cadence, the apical "s," and the overall rhythm of European Spanish speech.
• Provide Expert Feedback: Write clear, structured English justifications explaining why audio outputs meet or fall short of Castilian standards.
• Ensure Cultural Authenticity: Validate that AI outputs reflect genuine, lived Castilian Spanish — from modern slang to formal registers.

Work arrangement: Fully remote

Eligible countries: United States