Looking for remote AI training or data labeling work open to applicants located in Portugal? OpenTrain is the hiring organization for these roles. Candidates apply through OpenTrain, and OpenTrain may place or refer successful candidates to the client whose project they will support. Each live posting determines eligibility and provides the responsibilities, qualifications, hours, location rules, pay, and other details for that role.
Use your transactional legal expertise to review and redline commercial agreements for an AI training project. This remote contractor role pays $90-$130 per hour and requires active U.S. bar admission.
Posted Sep 6, 2026
Create practical AI recipes for fitness, events, travel, or pet care by writing domain guidance, building Google Sheets, and refining interactive apps. This remote contract role requires 40 hours weekly, including PST overlap and weekend availability.
Posted Sep 6, 2026
Use your fantasy sports expertise to evaluate AI outputs, validate scoring and playoff logic, and calibrate draft boards and projection models. This worldwide, part-time contractor role requires 20+ hours weekly.
Posted Sep 6, 2026
Use Chinese and scientific expertise to evaluate AI responses for accuracy, helpfulness, and safe handling of sensitive STEM topics. This flexible contractor role pays $68 to $72 per hour for fewer than 20 hours per week.
Posted Sep 6, 2026
Annotate videos of robotic arms performing assigned tasks and help train next-generation AI systems. This remote contractor project pays $50-$90 per hour and requires under 20 hours weekly for 1-3 months.
Posted Sep 6, 2026
Review robotic arm task videos, identify actions and outcomes, and create structured annotations for AI training. This remote contractor role offers $50-$90 per hour, 20+ hours weekly, and does not require prior AI experience.
Posted Sep 5, 2026
Analyze varied datasets, evaluate AI outputs, and provide precise feedback in a remote AI Data Generalist contract role paying $50-$90 per hour. Work 20+ hours weekly on flexible project assignments.
Posted Sep 5, 2026
Review AI-generated surveys for methodological quality, bias, clarity, and reliable evidence. This remote freelance role offers $120 per hour and flexible work of at least 20 hours weekly.
Posted Sep 5, 2026
Use advanced scientific expertise and Arabic fluency to write prompts, evaluate AI responses, and review sensitive dual-use content. This remote contract offers 7 hours per week at $38-$42 per hour.
Posted Sep 5, 2026
Use your clinical or therapeutic expertise to review physician and patient surveys for accuracy, clarity, and real-world relevance. This remote, part-time contractor role pays $200 per hour and supports the development of better AI systems.
Posted Sep 5, 2026
Review videos of robotic arms, identify task actions and outcomes, and create accurate training data for next-generation AI. This fully remote contractor role pays $50–$90 per hour and welcomes applicants without prior AI experience.
Posted Sep 5, 2026
Join a remote contractor project supporting next-generation AI through text annotation, model evaluation, written feedback, and RLHF tasks. Earn $50 to $90 per hour while applying critical thinking across varied topics.
Posted Sep 5, 2026
Join a remote contractor project helping improve next-generation AI through data annotation, question answering, and English-language output evaluation. Earn $50-$90 per hour while applying critical thinking and careful judgment.
Posted Sep 5, 2026
Use your SaaS revenue operations expertise to help train AI systems through CRM configuration, workflow design, data quality, and operational judgment. This remote contractor role pays $40-$80 per hour and requires 20+ hours weekly.
Posted Sep 4, 2026
Use hands-on SaaS revenue operations expertise to evaluate and improve AI training scenarios involving CRM systems, compliance, workflows, and reporting. This worldwide contractor opportunity pays $50-$100 per hour and requires 20+ hours weekly.
Posted Sep 4, 2026
Record naturalistic third-person video of everyday activities across indoor, outdoor, and vehicle settings. Earn $20 per hour with flexible 20+ hour weekly contract work and no prior AI experience required.
Posted Sep 4, 2026
Use your CAD and manufacturing expertise to evaluate AI-generated workflows, assess technical accuracy, and create practical evaluation rubrics. This fully remote contractor role offers flexible work under 20 hours per week.
Posted Sep 4, 2026
Record high-quality third-person video of everyday activities, environments, and vehicle navigation to help train next-generation AI. This remote contractor role pays $20 per hour and requires access to a compatible camera.
Posted Sep 4, 2026
Record real-world activities, walking, and vehicle navigation with an Insta360, GoPro MAX, or compatible camera. Earn $20 per hour of approved video in a flexible remote contractor project expected to last 1 to 3 months.
Posted Sep 4, 2026
Use your Autodesk Fusion 360, CAM, and CNC expertise to evaluate AI-generated manufacturing guidance and build process-quality rubrics. This fully remote contractor project offers flexible work under 20 hours per week.
Posted Sep 4, 2026
Evaluate Korean and English voice AI interactions, transcribe recordings, and provide clear feedback that helps improve AI behavior. This remote contractor role pays $24 per hour and requires 20+ hours weekly.
Posted Sep 4, 2026
Use your chemistry or biology expertise and Ukrainian fluency to evaluate AI safety, accuracy, and helpfulness across specialized scientific topics. This remote contract role offers 7 hours per week at $48 to $52 per hour.
Posted Sep 4, 2026
Use doctoral-level chemistry or biology expertise to write Thai scientific prompts and evaluate AI responses for accuracy, safety, and responsible handling of sensitive topics. This remote contractor role offers 7 hours per week at $24 to $28 per hour.
Posted Sep 4, 2026
Help evaluate and strengthen AI model safety in Norwegian through prompt writing, conversation classification, and adversarial pattern detection. This remote contractor role pays $58 to $62 per hour for about 7 hours weekly.
Posted Sep 4, 2026
Use PhD-level chemistry or biology expertise to write Finnish prompts and evaluate AI responses for scientific accuracy, helpfulness, and safe handling of dual-use information. This worldwide contractor role offers flexible work under 20 hours per week at $61 to $65 per hour.
Posted Sep 4, 2026
Use Thai fluency, cultural judgment, and structured reasoning to evaluate sensitive AI prompts and conversations. This remote, part-time contract pays $18-$22 per hour and starts immediately.
Posted Sep 4, 2026
Help improve AI safety by writing and evaluating sensitive Ukrainian prompts and conversations. This remote, part-time contractor role pays $38-$42 per hour and requires Ukrainian fluency, written English, and careful judgment.
Posted Sep 4, 2026
Use PhD-level chemistry or biology expertise to evaluate Danish AI responses for scientific accuracy, helpfulness, and safety. This remote contract role offers $61 to $65 per hour for about 7 hours weekly.
Posted Sep 4, 2026
Help improve AI safety by writing Danish prompts, reviewing model responses, and identifying adversarial or escalating patterns. This remote contractor role offers flexible work under 20 hours per week at $48-$52 per hour.
Posted Sep 4, 2026
Use your PhD-level scientific expertise and Croatian fluency to evaluate AI responses, write technical prompts, and improve safe model behavior. This remote freelance role pays $48-$52 per hour for approximately 7 hours weekly.
Posted Sep 4, 2026
AI training work involves preparing and reviewing examples used by artificial-intelligence systems. Roles open to applicants located in Portugal can involve annotating images or video, transcribing or recording audio, writing or rating model responses, evaluating search results, translating text, reviewing code, or applying subject-matter knowledge. The individual live posting explains which responsibilities and requirements apply.
OpenTrain is the hiring organization for roles open to applicants located in Portugal. Candidates apply through OpenTrain. OpenTrain may place or refer successful candidates to the client whose project they will support. Refer to each individual live posting for every other role-specific detail.
