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Verified partner opportunity

Audio Engineer (Speech / TTS Audio Specialist) – Brazilian Portuguese

$20 - $30 / hour

MercorRemote - country eligibility not specifiedHourly contract

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.

Is this a fit?

  • Ability to identify and fix artifacts, inconsistencies, and technical defects in audio

Apply on Mercor

Complete your application with Mercor. No HumanitApp account or fee.

What happens next

  1. Continue to the official listing and enter your application details; have your resume ready.
  2. Complete the role-specific screen or assessment requested by the partner.
  3. Confirm availability, location eligibility and work authorization if requested. The partner determines the exact process.
Application completion checklist →

Last verified 2026-10-15

Exact listing verified. HumanitApp is independent from Mercor and may receive a referral fee; the partner controls assessment and hiring.

Read our Mercor review
Ready to continue?Audio Engineer (Speech / TTS Audio Specialist) – Brazilian Portuguese

Official role description

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

Relevant skills

AI evaluationMachine learning

Compensation context

The listing states $20 - $30 / hour. Confirm the final rate, workload, and payment terms during the official application process.

Qualification checklist

  • Ability to identify and fix artifacts, inconsistencies, and technical defects in audio

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Before you apply

Referral and application questions

Can I start immediately through an Instant Work Offer?

This listing is not a promise of immediate work. Mercor may send separate offers to prequalified candidates. Read how Instant Work Offers work.

How should I compare the listed pay?

The listing states $20 - $30 / hour. Confirm the final rate, workload, and payment terms during the official application process.

Does Apply use a referral link?

Yes. The button opens the exact verified Mercorlisting using the referral URL published for this role.

Is HumanitApp the employer?

No. HumanitApp independently curates the opportunity. The partner platform manages applications and hiring decisions.

Must I share my details here?

No. Choose the primary Apply action to continue directly without giving HumanitApp your name or email address.

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