Audio Annotation Trainer – Portuguese (Brazil) | Freelance | Worldwide Remote
Turing is seeking a detail-oriented Transcriber and Audio Annotation Trainer fluent in Brazilian Portuguese to help build an evaluation-grade, multilingual audio dataset for cutting-edge AI systems. This is a fully remote freelance opportunity ideal for linguists, language teachers, or professional transcriptionists.
About Turing
Turing is one of the world's fastest-growing AI companies, partnering with leading AI labs to advance frontier model capabilities in reasoning, coding, multilinguality, and more. We build real-world AI systems that solve mission-critical challenges for global organizations.
Role Overview
You will review and validate AI-generated transcriptions and diarization outputs for multi-channel audio recordings, ensuring high accuracy across diverse conversational dynamics, speakers, and contexts.
Day-to-Day Responsibilities
- Review AI-generated transcriptions and diarization outputs against strict low word error rate (WER) targets.
- Validate that transcripts accurately capture spontaneous speech, including overlaps, interruptions, false starts, and disfluencies.
- Assess the precision of turn-level and word-level timestamps and speaker identification in complex, overlapping dialogue.
- Read and validate JSON-formatted outputs for accurate metadata tagging, diarization alignment, and timestamp logic.
- Identify transcription, segmentation, and alignment errors and determine whether AI output meets acceptance thresholds.
Requirements
- Fluent or native proficiency in Portuguese (Brazil).
- Exceptional ear for audio fidelity — able to detect background noise, channel bleed, or clipping.
- Meticulous attention to detail for word-level timestamps, diarization accuracy, and verbatim transcription rules.
- Ability to evaluate AI transcription quality and identify recognition, segmentation, and speaker attribution errors.
Preferred Qualifications
- Linguists / Phonetics Experts: Deep understanding of natural speech patterns and conversational dynamics.
- Language Teachers: Native-level mastery with ability to evaluate transcript fidelity without normalization.
- Professional Transcriptionists / Speech Data QA Specialists: Experience reviewing ASR outputs and validating timestamps at the turn and word level.
Perks
- Fully remote, flexible work arrangement.
- Opportunity to contribute to cutting-edge AI and LLM projects.
- Potential for contract extension based on performance and project needs.
This is a flexible freelance agreement, not a full-time or part-time employment position.
