Remote AI training jobs for Portuguese speakers

Explore remote AI training and data labeling roles that list Portuguese as a working-language requirement. OpenTrain hires candidates and may place or refer successful applicants to a client project.

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100% remote
Flexible hours
Hourly / per-task pay
14 open roles

Business Account Rater (Multilingual, Google Workspace)

Evaluate AI-generated business email responses using your active Google Workspace inbox and provide structured RLHF feedback in Spanish, Italian, Portuguese, German, Japanese, Korean, or French. Remote contractor role, part-time (20+ hrs/wk typical) for 3–4 months with PST overlap.

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Generative AI & RLHF

Text

Remote · Brazil, France, Germany +4 more

Spanish, Italian +5 more

Part-time · Flexible

Entry level

Posted Jul 26, 2026

Business Analyst (Portuguese, Brazil)

Join OpenTrain AI as a remote Business Analyst to help fine-tune large language models by answering analytical questions, creating scenarios, and labeling text in English and Brazilian Portuguese. Entry-level, contractor role with flexible hours and clear quality targets.

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Generative AI & RLHF

Text

Remote · Worldwide

Portuguese, English

Part-time · Flexible

Entry level

Posted Jul 26, 2026

Business Account Rater (Gmail Personalization)

Review AI-generated email replies that use business Gmail history and rate them for relevance, personalization, and helpfulness. Contractor role for US-based native speakers of Spanish, Italian, Portuguese, German, Japanese, Korean, or French; flexible hours for a 3–4 month engagement.

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Generative AI & RLHF

Text

Remote · United States

Spanish, Italian +5 more

Part-time · Flexible

Entry level

Posted Jul 25, 2026

Portuguese Audio Annotation QA Specialist

Join OpenTrain to review multi-channel Portuguese conversations for transcript accuracy, speaker diarization, timestamps, and audio fidelity. This remote, part-time contractor role (~20+ hrs/week) requires native Portuguese and a strong ear for subtle audio issues.

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Audio & Speech

Audio

Remote · Worldwide

Portuguese

Part-time · Flexible

Entry level

Posted Jul 20, 2026

Portuguese Language Data Annotation Expert

Work remotely as a part-time contractor annotating and reviewing Portuguese text for AI—20+ hours/week at $30–$65/hr. Use your native or near-native Portuguese and fluent English to label, evaluate, and improve language data for machine learning.

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Translation & Localization

Text

Remote · Worldwide

Portuguese, English

Part-time · Flexible

Intermediate level

Hourly · $30–$65/hr

Posted Jul 17, 2026

Portuguese (Brazil) Audio Transcription Reviewer

Review AI-generated Portuguese (Brazil) transcriptions and diarization for multi-channel recordings, validating timestamps, speaker labels, and verbatim unnormalized speech. Remote, part-time contract role (20+ hrs/week) for entry-level contributors with transcription QA experience.

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Audio & Speech

Audio

Remote · Worldwide

Portuguese

Part-time · Flexible

Entry level

Posted Jul 17, 2026

Portuguese AI Personalization Quality Analyst

Join OpenTrain as a Portuguese AI Personalization Quality Analyst evaluating personalized generative responses using your own conversation context — remote, contractor, 20+ hrs/week at $15/hr. Create multi-turn prompts, compare model outputs, and write precise rationales to improve grounding and hel

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Generative AI & RLHF

Text

Remote · Worldwide

Portuguese

Part-time · Flexible

Intermediate level

Hourly · $15/hr

Posted Jul 16, 2026

AI Quality Analyst, Portuguese (Portugal)

Join OpenTrain as a part-time AI Quality Analyst evaluating a conversational AI personalization feature; Portuguese fluency required. Remote, contractor work at $15/hr with a 20+ hour weekly commitment—you'll design personal prompts, compare side-by-side responses, and write defensible rationales.

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Generative AI & RLHF

Text

Remote · Worldwide

Portuguese

Part-time · Flexible

Intermediate level

Hourly · $15/hr

Posted Jul 15, 2026

Portuguese Quality Assurance Lead

Lead QA for Portuguese AI training projects: review AI-generated Portuguese content and trainer work, give precise written feedback, maintain style guides, and improve QA workflows. $35/hr, 20+ hours/week, remote (Brazil or Portugal), contractor, part-time.

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Generative AI & RLHF

Text

Remote · Brazil, Portugal

Portuguese

Part-time · Flexible

Intermediate level

Hourly · $35/hr

Posted Jul 9, 2026

Portuguese AI Response Evaluation Expert

Review and rate AI-generated Portuguese responses, write clear model solutions, and apply localization expertise to ensure accuracy and cultural nuance. Part-time contractor role, fully remote, based in Brazil; up to $30/hour and 20+ hours per week.

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Generative AI & RLHF

Text

Remote · Brazil, Portugal

Portuguese

Part-time · Flexible

Intermediate level

Hourly · $30/hr

Posted Jul 9, 2026

Portuguese Marketing Document AI Specialist

Create, edit, and evaluate Portuguese marketing presentations, reports, and spreadsheets to support AI training. Part-time contractor role (20+ hrs/week), worldwide, native Portuguese required — earn up to $55/hr.

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Generative AI & RLHF

Document

Remote · Worldwide

Portuguese, English

Part-time · Flexible

Entry level

Hourly · $10–$55/hr

Posted Jun 30, 2026

Portuguese HR Documents Specialist (Remote, Contract)

Join OpenTrain to create and refine Portuguese HR policies, contracts, and onboarding materials for AI training; contractor, part-time (20+ hrs/week) paid hourly up to $45 USD. Native-level Portuguese, a Bachelor's degree and 3+ years HR documentation experience required.

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Writing & Editing

Document

Remote · Worldwide

Portuguese

Part-time · Flexible

Entry level

Hourly · $10–$45/hr

Posted Jun 30, 2026

Financial Documents Specialist (Portuguese)

Join OpenTrain as a contractor to review, create, and refine Portuguese financial documents for AI training. Part-time (20+ hrs/week), remote work with pay up to $45/hr; strong finance background and native Portuguese required.

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Legal & Finance

Document

Remote · Worldwide

Portuguese

Part-time · Flexible

Entry level

Hourly · $10–$45/hr

Posted Jun 30, 2026

Business Document Review Specialist (Portuguese)

Join OpenTrain to evaluate AI-generated business documents in Portuguese, working remotely 20+ hrs/week as a contractor; assess Excel, PowerPoint and Word deliverables and provide actionable feedback. Pay range: $20–$70 USD/hr (up to $70/hr).

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Generative AI & RLHF

Document

Remote · Worldwide

Portuguese

Part-time · Flexible

Intermediate level

Hourly · $20–$70/hr

Posted Jun 30, 2026