Portuguese Transcription Expert - AI Trainer

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: 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 20–30 mins to complete) Upload resume AI interview based on your resume Submit form Resources & Support For details about the interview process and platform information, please check: https://talent.docs.mercor.com/welcome For any help or support, reach out to: support@mercor.com PS: Our team reviews applications daily. Please complete your AI interview and application steps to be considered for this opportunity. #hiringmercor