Audio Engineer (Brazilian Portuguese TTS) at Mercor
posted 1 hour agoAudio Engineer (Speech / TTS Audio Specialist) – Brazilian Portuguese | $50/hr | Remote
We're looking for audio engineers with strong experience editing and quality-checking voice recordings for speech and text-to-speech (TTS) applications, specifically in Brazilian Portuguese. The role focuses on preparing high-quality audio datasets for machine learning systems, ensuring clarity, consistency, and technical compliance across large volumes of speech data. Native or near-native Brazilian Portuguese fluency is required to accurately assess speech quality, pronunciation, and naturalness.
What You'll Do
- Edit and process Brazilian Portuguese voice recordings for 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 and distortion, background noise and artifacts, and loudness consistency and level balancing
- Ensure audio meets strict technical specifications for ML training pipelines
- Evaluate recordings for Brazilian Portuguese pronunciation accuracy, naturalness, and fluency
- Work with large batches of recordings, maintaining consistency and throughput
- Collaborate with teams working on Brazilian Portuguese speech datasets, voice talent recordings, and model training workflows
Basic Qualifications
- Native or near-native Brazilian Portuguese speaker with strong listening intuition for Brazilian Portuguese speech nuances
- Experience editing speech or voice recordings (not just music production)
- Strong understanding of speech audio quality standards and common issues in recorded dialogue
- 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 or structured workflows
Preferred Qualifications
- 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
Pay
This is a remote, hourly role paying $50/hr.
How to apply for this role
- Upload your resume — keep it up-to-date and in English. Mercor will auto-fill your profile from it.
- Complete the AI interview — a 15-minute conversation about your experience. Be ready to discuss specific projects and challenges you've solved.
- Submit your application — only about 20% of applicants finish all the steps, so completing yours puts you well ahead.