Speech Audio Specialist - AI Trainer

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: Audio Engineer (Speech / TTS Audio Specialist) – Brazilian Portuguese
Type: Contract
Compensation: $50/hour
Location: Remote

Role Responsibilities

• Edit and process Brazilian Portuguese voice recordings for use in TTS and speech AI systems.
• Perform audio cleanup including silence trimming, breath reduction/removal, de-clicking, de-essing, and noise reduction.
• Conduct detailed quality assurance checks for clipping, distortion, background noise, and loudness consistency.
• Ensure audio meets strict technical specifications for ML training pipelines.
• Evaluate recordings for Brazilian Portuguese pronunciation accuracy, naturalness, and fluency.
• Collaborate with teams working on Brazilian Portuguese speech datasets, voice talent recordings, and model training workflows.

Qualifications

Must-Have

• Native or near-native Brazilian Portuguese speaker with strong listening intuition for Brazilian Portuguese speech nuances.
• Experience editing speech or voice recordings.
• Strong understanding of speech audio quality standards.
• Hands-on experience with tools like iZotope RX, Pro Tools, or similar audio restoration software.
• Ability to identify and fix artifacts, inconsistencies, and technical defects in audio.
• Experience working with high-volume audio datasets.

Preferred

• Experience working with TTS vendors or platforms.
• Prior involvement in speech ML, voice AI, or dataset creation/annotation workflows.
• Familiarity with audio QA pipelines, labeling, or evaluation processes.
• Experience directing or editing Brazilian Portuguese voice talent recordings.

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: https://talent.docs.mercor.com/welcome
• For any help or support, reach out to: [email protected]

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