Source Job

Global

  • Converse with the model on language scenarios, verify factual accuracy and logical soundness.
  • Capture reproducible error traces and suggest improvements to our prompt engineering and evaluation metrics.
  • Challenge advanced language models on topics like verb conjugation, noun-adjective agreement, sentence structure, word order, accentuation, and colloquial expressions.

20 jobs similar to Portuguese Language Data Contributor (Multimodal) – Freelance AI Trainer

Jobs ranked by similarity.

$15–$15/hr
US

  • Data collection, evaluation, and annotation.
  • Pairwise comparisons.
  • Object tagging and labeling across different content types.

RWS TrainAI focuses on improving AI-generated content. They embrace DEI and equal opportunity, committed to a discrimination-free work environment where employment decisions are based on business needs and qualifications.

$15–$15/hr
US

  • Data collection, evaluation, and annotation.
  • Pairwise comparisons.
  • Object tagging and labeling across different content types (audio, video, images, or collected data)

RWS TrainAI focuses on improving AI-generated content. They embrace DEI and are an equal opportunity employer committed to providing a work environment free of discrimination and harassment.

Global

  • Listen to short audio clips in Russian and evaluate them using a defined rubric.
  • Accurately identify target accents from provided audio samples.
  • Compare multiple recordings and assess which one sounds more natural in relation to the target accent.

Welo Data, part of Welocalize, is a global AI data company with 500,000+ contributors delivering high-quality, ethical data to train the world’s most advanced AI systems. We’re building smarter, more human AI with a diverse community in 100+ countries.

Global

  • Record a scripted conversation with another speaker using natural code-switching between your native language (Turkish) and English.
  • Complete a short Pre-Vet test on our Aurora Studio Platform (the Pre-Vet consists of recording 4 sentences).
  • If successful, you’ll be matched with another speaker and scheduled for a recording session within the next 2–3 weeks.

Lionbridge is an AI data training company. They provide opportunities to contribute to cutting-edge AI technology on a global project.

US

  • Review, score, and improve AI-generated responses
  • Evaluate prompts and responses across a wide range of topics
  • Perform QA checks on other annotators’ work and provide feedback

RWS is committed to equal employment opportunity and provides a work environment free of discrimination and harassment. They base employment decisions on business needs, job requirements, and individual qualifications.

Europe

  • Native or near-native fluency in Kyrgyz
  • Based in: Kyrgyzstan , Remote
  • English proficiency

Welo Data, part of Welocalize, is a global AI data company with 500,000+ contributors delivering high-quality, ethical data to train the world’s most advanced AI systems. They are building smarter, more human AI with a diverse community in 100+ countries.

Australia

  • Listen to short audio clips in Chinese (Mandarin, Putonghua) and evaluate them using a defined rubric.
  • Accurately identify target accents from provided audio samples.
  • Apply consistent and objective judgment based on provided evaluation guidelines.

Welo Data, part of Welocalize, is a global AI data company with 500,000+ contributors delivering high-quality, ethical data to train the world’s most advanced AI systems. They are building smarter, more human AI with a diverse community in 100+ countries.

  • Design scenario-based and edge-case prompts to test AI behavior.
  • Develop evaluation rubrics to assess AI responses across multiple criteria.
  • Perform side-by-side evaluations of AI outputs and score them using defined criteria.

Welo Data, part of Welocalize, is a global AI data company with 500,000+ contributors delivering high-quality, ethical data to train the world’s most advanced AI systems. They are building smarter, more human AI with a diverse community in 100+ countries.

Global

  • Data collection, evaluation, and annotation.
  • Pairwise comparisons.
  • Object tagging and labeling across different content types (audio, video, images, or collected data)

RWS enhances communication and delivers value. They embrace DEI and promote equal opportunity, committed to a work environment free of discrimination and harassment.

US

  • Develop and maintain high-quality Brazil taxonomies, attributes, and metadata libraries.
  • Oversee the onboarding questionnaire process to collect structured information for improved matching.
  • Localize market-specific prompts to ensure cultural and linguistic appropriateness for the Brazilian market.

They are seeking a Principal Taxonomist to support the international expansion of a global taxonomy and matching platform, with Brazil as the primary focus market. This initiative represents the next phase of global rollout, transitioning from manual questionnaire reviews to a scalable, AI-driven model while maintaining high quality standards.

Global

  • Help train and evaluate cutting-edge AI models using real legal expertise.
  • Complete AI training tasks such as analyzing, editing, and writing annotations, grounded in legal reasoning and professional practice.
  • Judge the performance of AI in performing legal tasks and improve cutting-edge AI models by providing expert feedback.

Prolific is building the biggest pool of quality human data in the world. Over 35,000 AI developers, researchers, and organizations use Prolific to gather data from paid study participants with a wide variety of experiences, knowledge, and skills.

Europe

  • Produce long-form educational guides and sharp social media copy.
  • Write content optimized for AI-powered search and discovery.
  • Translate intricate financial products into digestible content.

Raisin is the world's leading platform for savings and investment products, connecting consumers with banks in the EU, the UK, and the US. The fintech company works with over 300 banks and holds over 75 billion euros in assets from around one million customers.

Global

  • Review and validate Oracle SQL queries and output generated from existing natural language questions.
  • Ensure that SQL logic is correct, Oracle-compliant, and that it produces realistic, accurate results.
  • Verify that query outputs correctly and fully answer the original natural language questions and provide edits if needed.

CrowdGen, by Appen, provides AI annotation project. This role is a project-based opportunity where you will join as an Independent Contractor.

Europe

  • Listen to short audio clips in French (France) and evaluate them using a defined rubric.

Welo Data, part of Welocalize, is a global AI data company with 500,000+ contributors delivering high-quality, ethical data to train the world’s most advanced AI systems. They build smarter, more human AI with a diverse community in 100+ countries.

Africa

  • Create Canva’s voice across all parts of the Canva product in 19 African languages.
  • Translate key content and manage the relationship with our localisation vendor.
  • Develop/update style guides and glossaries and review vendor translations.

Canva is a design platform redefining how the world experiences design. The team spans the globe and supports flexible, remote-friendly ways of working, with a focus on collaboration.

Global

  • Completing AI training tasks such as analyzing, editing, and writing computer science–related content
  • Judging the performance of AI on programming, algorithms, data structures, and systems prompts
  • Improving cutting-edge AI models using your understanding of software engineering and computational thinking

Prolific is building the biggest pool of quality human data in the world. Over 35,000 AI developers, researchers, and organizations use Prolific to gather data from paid study participants with a wide variety of experiences, knowledge, and skills.

Global

  • Completing AI training tasks such as analyzing, editing, and writing research-focused content
  • Judging the performance of AI on research design, methodology, and scientific reasoning prompts
  • Improving cutting-edge AI models using your experience in research and experimentation

Prolific is creating a pool of quality human data in the world. Over 35,000 AI developers, researchers, and organizations use Prolific to gather data from paid study participants with many experiences, knowledge, and skills, developing accurate, nuanced, and aligned AI systems.