MercorAudio Engineer (Speech / TTS Audio Specialist) – Brazilian Portuguese
Good fit for: translators, linguists, interpreters, and bilingual speakers.
Listing verified on the platform’s official board. Last checked November 11, 2026.
Overview
We're looking for audio engineers with strong experience editing and quality-checking voice recordings for speech and text-to-speech (TTS) applications, specifically for Brazilian Portuguese-language audio. This role focuses on preparing high-quality audio datasets for machine learning systems, ensuring clarity, consistency, and technical compliance across large volumes of Brazilian Portuguese 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 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 and distortion
- Background noise and artifacts
- 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**
- * *
**Ideal Candidate Profile**
- Detail-oriented with strong **critical listening skills in Brazilian Portuguese**
- Comfortable working with **repetitive, high-precision tasks at scale**
- Able to balance **speed and quality** in production environments
- Familiar with the nuances of **human Brazilian Portuguese speech vs synthetic voice requirements**
Applying via Mercor: Mercor pays twice a week once you are hired and billing work. Sign-up is free; expect a resume upload and an AI interview before matching.