Audio Quality Analyst - Fully Remote | Upto $20/Hr

Mercor; São Paulo; Remote; BRL 105,000 - 140,000; Part time

Job summary

Mercor is seeking an Audiobook QA Expert for Portuguese (Brazil) to review AI-narrated content, assess pronunciation and enjoyment in Brazilian Portuguese, and log issues. The role is remote, contract-based, and requires 20 hours per week.

You will annotate, label, and report on listener satisfaction, using review tooling. English may be used for reporting and communication.

Qualifications

• Native or near-native fluency in Brazilian Portuguese.
• Experience as an active audiobook listener with opinions on quality.
• Working knowledge of English for reporting and communication.
• Experience in annotation, labeling, transcription, or similar detail-oriented work.

Responsibilities

• Listen to AI-narrated audiobooks in Brazilian Portuguese and assess narration quality, accuracy, and enjoyment.
• Spot and log errors in synthesized speech, including mispronunciations and unnatural phrasing.
• Categorize issues and mark their exact span using our review tooling.
• Report on overall listener satisfaction and identify natural vs. disruptive narration moments.
• Work consistently across many hours of audio, maintaining attention to detail.

Skills

Brazilian Portuguese

Audio QA

English for reporting

Annotation

20h/wk availability

Job description

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 Details

Position: Audiobook QA Expert — Portuguese (Brazil)
Type: Contract
Compensation: $15–$20/hour
Location: Remote
Commitment: 20 hours/week

Role Responsibilities

• Listen to AI-narrated audiobooks in Brazilian Portuguese and assess narration quality, accuracy, and enjoyment.
• Spot and log errors in synthesized speech, including mispronunciations and unnatural phrasing.
• Categorize issues and mark their exact span using our review tooling.
• Report on overall listener satisfaction and identify natural versus disruptive narration moments.
• Work consistently across many hours of audio, maintaining attention to detail.

Qualifications

Must-Have

• Native or near-native fluency in Brazilian Portuguese.
• Experience as an active audiobook listener with opinions on quality.
• Working knowledge of English for reporting and communication.
• Experience in annotation, labeling, transcription, or similar detail-oriented work.
• Reliable availability for 20 hours/week on a part-time basis.

Preferred

• Experience with AI training-data, model-evaluation, or audio/QA annotation projects.
• Background in language, editing, voice, or audio production.