Mercor connects elite creative and technical talent with leading AI research labs. Headquartered in San Francisco our investors include BenchmarkGeneral CatalystPeter ThielAdam DAngeloLarry Summers and Jack Dorsey.
Position: Sonic Audit Specialist - Portuguese Type:Contract Compensation:$25/hour Location:Remote
Role Responsibilities
Evaluate AI training data in Brazilian Portuguese by auditing multilingual transcription and forced alignment tasks.
Review transcriptions for accuracy and apply error codes to ensure the AI model captures speech correctly.
Verify and correct word-level audio segmentation adjusting timestamps and transcriptions as needed.
Provide written rationales for each judgment to enhance AI model performance.
Work independently and asynchronously with a focus on careful listening and detailed analysis.
Qualifications
Must-Have
Native or near-native command of Portuguese as spoken in Brazil.
Strong English reading and writing skills.
Experience with transcription subtitling localization linguistic annotation or QA.
Ability to apply a disciplined rubric consistently.
Preferred
Experience in AI data annotation or model evaluation.
Background in phonetics or linguistics.
Familiarity with audio editing or waveform tools.
Application Process (Takes 2030 mins to complete)
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#hiringmercor Employment Type : Full Time Experience: years Vacancy: 1
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Portuguese Transcription Expert AI Trainer • São Paulo, São Paulo, Brazil