Looking for remote AI training or data labeling work that lists Portuguese as a working-language requirement? These roles can connect language knowledge with tasks that help prepare and review examples for AI systems. OpenTrain is the hiring organization for roles on OpenTrain. Candidates apply through OpenTrain, and OpenTrain may place or refer successful candidates to the client whose project they will support.
Transcribe and evaluate Portuguese audio for AI training, preserving speaker nuance and context while earning $10-$18 per hour. Work remotely as a contractor for 20+ hours weekly.
Posted Sep 7, 2026
Use a specialized Mac app to record and evaluate Brazilian Portuguese voice interactions with an AI assistant. This remote, four-week contract pays $11.45 per hour and requires 20+ hours weekly.
Posted Sep 4, 2026
Use Portuguese fluency and careful judgment to evaluate sensitive AI model behavior, write expert prompts, and identify adversarial language. This remote contract pays $40-$44 per hour for about 7 hours weekly, with training provided.
Posted Sep 4, 2026
Use PhD-level expertise in chemistry, biology, or a related field to evaluate Portuguese AI responses for scientific accuracy, helpfulness, and safety. This remote contract offers approximately 7 hours per week at $50-$54 per hour.
Posted Sep 4, 2026
Review machine-generated Brazilian Portuguese transcripts against audio, correcting words, punctuation, timestamps, and alignment. Work remotely as a flexible contractor for $10-$35 per hour with OpenTrain.
Posted Sep 3, 2026
Review and correct Brazilian Portuguese audio transcripts, including words, punctuation, timestamps, and timing alignment. Work remotely on a flexible contract paying $10-$35 per hour.
Posted Sep 3, 2026
Review and correct Brazilian Portuguese audio transcripts for AI training in a fully remote contract role paying $10-$35 per hour. Work independently on flexible, asynchronous projects with a 20+ hour weekly commitment.
Posted Sep 3, 2026
Use your outpatient primary care expertise to evaluate AI-generated clinical documentation, identify inaccuracies, and improve medical AI systems. This remote, part-time contractor role pays $170-$190 per hour.
Posted Sep 3, 2026
Use your inpatient medicine expertise and multilingual communication skills to evaluate clinical documentation AI. This remote contract role offers flexible part-time scheduling and pays $170 per hour.
Posted Sep 3, 2026
Create detailed Brazilian Portuguese transcripts from natural speech, including accents, crosstalk, pauses, and background noise. This fully remote contract offers flexible work and $15-$35 per hour.
Posted Sep 2, 2026
Review and correct machine-generated Brazilian Portuguese transcripts for AI training from anywhere in the United States. Work independently on a flexible schedule for 20+ hours per week at $10-$35 per hour.
Posted Sep 2, 2026
Transcribe Brazilian Portuguese audio for AI training, including conversations with overlapping speakers, background noise, and informal speech. This remote contract offers flexible scheduling, 20+ hours per week, and pay of $10 to $35 per hour.
Posted Sep 2, 2026
Transcribe challenging Brazilian Portuguese audio for AI training, including multi-speaker recordings, background noise, and informal speech. Work remotely on a flexible schedule for 10 to 40 hours per week.
Posted Sep 2, 2026
Review and refine machine-generated Brazilian Portuguese transcripts with precise word, punctuation, and timestamp corrections. This remote contract offers flexible work at $10-$35 per hour for detail-oriented language specialists.
Posted Sep 2, 2026
Transcribe Brazilian Portuguese audio for AI training datasets in a fully remote, flexible contract role paying $10-$35 per hour. Work independently on challenging recordings with multiple speakers, background noise, and natural speech.
Posted Sep 2, 2026
Transcribe challenging Brazilian Portuguese audio for AI training from anywhere. This flexible contract role offers 20+ hours per week, pays $10-$35 per hour, and requires no prior AI experience.
Posted Sep 2, 2026
Use your Brazilian Portuguese voice acting skills to record characters, stories, and varied content for AI projects. This flexible freelance role offers worldwide availability and requires 20+ hours per week.
Posted Aug 28, 2026
Record natural, high-quality European Portuguese audio to help improve AI speech recognition and language understanding. This remote contract offers flexible scheduling and $20 to $40 per hour based on experience.
Posted Aug 3, 2026
Create high-fidelity Brazilian Portuguese audio samples for next-generation AI systems in a remote contractor role paying $20-$40 per hour. Bring professional recording experience, strong equipment skills, and native-level Portuguese fluency.
Posted Aug 3, 2026
Help improve conversational AI by uncovering jailbreaks, prompt injections, bias risks, and other vulnerabilities. This remote contractor role offers 20+ hours per week at $29-$45 per hour for native English and Portuguese speakers.
Posted Jul 30, 2026
Evaluate how conversational AI uses personal context in Portuguese, rank responses, and explain quality issues. This remote contractor role pays $15/hour and requires 20+ hours per week.
Posted Jul 16, 2026
Lead quality assurance for Portuguese AI training projects, reviewing localized content, guiding contributors, and improving QA workflows at $35 per hour. This flexible, remote contractor role requires 20+ hours weekly.
Posted Jul 9, 2026
Review and improve Portuguese AI responses for accuracy, reasoning, localization, and clarity in a fully remote contractor role based in Brazil. Work 20+ hours weekly at $30 per hour through OpenTrain.
Posted Jul 9, 2026
Record clear, natural scripted audio in English and one or more supported languages using professional equipment. This worldwide, part-time contractor role offers $40 to $60 per hour and 20+ hours of weekly work.
Posted Apr 10, 2026
Review and score European Portuguese language data and AI outputs for quality, correctness, and guideline alignment. This flexible contract role offers less than 20 hours per week at $15 per hour.
Posted Nov 12, 2025
Use your software development skills and native-language writing ability to create precise JSON, tables, lists, prompts, and AI-training content for $25 per hour. This intermediate contractor role offers part-time project work through OpenTrain.
Posted Aug 14, 2024
Use your Portuguese creative writing skills to craft authentic chatbot responses and improve AI-generated text. This remote contract role offers flexible hours for writers in Brazil and Portugal.
Posted Jul 23, 2024
Work requiring Portuguese may involve translating text, transcribing or recording audio, writing or rating model responses, evaluating search results, or labeling other data used to develop AI systems. The exact language level, task scope, qualifications, hours, pay, and other conditions are determined by each individual posting. Read the live role carefully before deciding whether it matches your background and availability.
OpenTrain is the hiring organization for these public roles, and candidates apply through OpenTrain. After a successful application, OpenTrain may place or refer the candidate to the client whose project they will support. Because client and project requirements differ, use each live posting as the source for the role's qualifications, responsibilities, and other hiring details.
