Audio Engineer – Speech, TTS Audio Specialist – Brazilian Portuguese

🔥 14 hours ago

🇺🇸 United States – Remote

💵 $20 - $30 / hour

⏳ Contract/Temporary

🟡 Mid-level

🟠 Senior

👷🏻‍♀️ Engineer

👻 Ghost score 9%

What it means: how likely this posting is sitting open without active hiring.How to read it: 60% or higher means we think this is a ghost. Lower scores are less of a worry.How we score it: age, reposts, open roles vs team size, how fast jobs close, and whether pay is listed.Fine print: an estimate from public data, not a judgment of the company. Real jobs can score high, so treat it as a hint, not a fact.

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Mercor

WebsiteLinkedInAll Job Openings

51 - 200 employees

Founded 2023

🔥 Funding within the last year

💰 $350M Series C - Mercor on 2025-10

Mercor is a company for which no descriptive text was provided in the input. Additional information (products, services, target customers, or industry specifics) is needed to create an accurate summary and select appropriate industries.

📋 Description

• 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 quality assurance checks for clipping, distortion, background noise, artifacts, loudness consistency, and level balancing • Ensure audio meets technical specifications for machine-learning training pipelines • Evaluate Brazilian Portuguese pronunciation accuracy, naturalness, and fluency • Process large batches of recordings while maintaining consistency and throughput • Collaborate on Brazilian Portuguese speech datasets, voice talent recordings, and model-training workflows • Prepare high-quality audio datasets for AI systems training and enhancement

🎯 Requirements

• Native or near-native Brazilian Portuguese fluency • 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 iZotope RX, Pro Tools, or similar audio restoration software • Ability to identify and fix audio artifacts, inconsistencies, and technical defects • Experience working with high-volume audio datasets or structured workflows • Familiarity with TTS vendors or platforms preferred • Prior involvement in speech ML, voice AI, or dataset creation/annotation workflows preferred • Familiarity with audio QA pipelines, labeling, or evaluation processes preferred • Experience directing or editing Brazilian Portuguese voice talent recordings preferred • 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 nuances of human Brazilian Portuguese speech versus synthetic voice requirements • Must be unable to require H1-B or STEM OPT support

🏖️ Benefits

• Fully remote role • Flexible schedule / work on your own schedule • Weekly payments via Stripe or Wise • Projects may be extended, shortened, or concluded early depending on needs and performance • Competitive pay • Referral bonus of up to $280 per successful referral • Reasonable accommodations upon request