Find remote AI training and data labeling jobs open to applicants in Brazil.
Review inpatient records, clinical notes, FHIR data, and claims to improve AI systems and data quality. This remote contractor role offers flexible scheduling and pays $100 to $120 per hour.
Posted Oct 9, 2026
Create and test small game projects that help evaluate AI systems. This contract pays $25 to $70 per hour equivalent, paid per task that meets the project specifications.
Posted Oct 8, 2026
Review AI-generated medical responses for clinical accuracy, reasoning, completeness, and patient safety. This worldwide contractor role pays $100 per hour and requires an actively licensed nurse practitioner or medical doctor.
Posted Oct 8, 2026
Review AI-generated answers about finance, accounting, valuation, and investments for accuracy, reasoning, and risk awareness. Earn $150 per hour in a remote, four-week contractor engagement requiring 20+ hours per week.
Posted Oct 8, 2026
Evaluate AI-generated answers to U.S. legal hypotheticals for up to $150 per hour. This remote, four-week project requires a U.S. law degree, active bar admission, and three years of legal practice.
Posted Oct 8, 2026
Create rigorous life sciences tasks for AI evaluation using experiments, biological data, figures, sequences, and research evidence. This remote contractor role runs for one month and requires 20 or more hours per week.
Posted Oct 8, 2026
Design difficult genomics and bioinformatics tasks, reference solutions, and objective graders for AI agents in a five-week remote contractor assignment paying $260 per approved task.
Posted Oct 8, 2026
Design complex computational life sciences tasks that test how AI agents inspect data, write code, use scientific tools, and produce valid results. This remote five-week contractor assignment pays $280 per approved task.
Posted Oct 8, 2026
Build high-fidelity 3D environments and assets that match real-world objects in simulation platforms. This role pays $60 to $150 per hour and requires English fluency, 3D modeling or CAD experience, and physics simulation knowledge.
Posted Oct 8, 2026
Create digital illustrations, layouts, and graphics for AI training, then review and improve visual assets through structured feedback. This remote contractor role pays $35 to $105 per hour and requires strong graphic design skills.
Posted Oct 8, 2026
Transcribe Swiss German and English audio with accuracy, capture dialects and speaker changes, and review transcripts for quality. Pay is $25 to $30 per hour equivalent, paid per task, with 20+ hours per week.
Posted Oct 8, 2026
Review curated image collections and select work with strong composition, lighting, color, originality, and technical execution. This remote contractor role pays $35 to $105 per hour and requires strong visual judgment and English fluency.
Posted Oct 8, 2026
Review and improve financial analysis datasets for AI training, applying expertise in earnings, valuation, modeling, and investment research. This remote contractor role pays $175 to $300 per hour.
Posted Oct 7, 2026
Review inpatient notes and FHIR records for medical AI training, checking clinical claims and documentation quality. This part-time contractor role pays $70 to $115 per hour and suits physicians with recent inpatient experience.
Posted Oct 7, 2026
Record stable 360-degree driving footage from a car-mounted, trailing perspective for AI training. This flexible remote contractor role pays $15 to $25 per hour and is open to fluent English speakers in listed countries.
Posted Oct 7, 2026
Transcribe and review Gujarati audio for AI training from a remote setting. Earn $8 to $12 per hour as a contractor while using your language skills to improve written data quality.
Posted Oct 7, 2026
Transcribe Bengali audio and video, correct machine-generated transcripts, and label language data for AI systems. This remote contractor role pays $10 to $22 per hour.
Posted Oct 7, 2026
Transcribe Urdu audio and video, refine existing transcripts, and add metadata and speaker details remotely for $10 to $22 per hour. Use your knowledge of Urdu grammar, spelling, dialects, and modern usage.
Posted Oct 7, 2026
Transcribe and review Punjabi audio and video, identify speakers, and annotate language data for AI projects. This remote contractor role pays $8 to $15 per hour and is open to candidates in many countries.
Posted Oct 7, 2026
Create realistic mobile coding tasks, reproducible environments, deterministic validators, and reference solutions for AI models. This remote contractor role takes about 15 hours per week and pays $50 to $100 per hour equivalent, paid per task that meets project specifications.
Posted Oct 7, 2026
Transcribe and review Norwegian audio and video, classify speech segments, and flag unclear recordings for AI training. This remote, part-time contractor role pays $20 to $30 per hour.
Posted Oct 7, 2026
Design and evaluate realistic coding-agent tasks using production-like repositories, tests, evaluators, and scoring rubrics. This contract role is open worldwide, requires English fluency and 20+ hours per week, and calls for deep software engineering experience.
Posted Oct 7, 2026
Design rigorous bioinformatics and computational genomics tasks that test whether AI models can analyze data, write code, and produce verifiable scientific results. This remote five-week contractor assignment pays $150 per approved task.
Posted Oct 7, 2026
Build and test vulnerable GenAI agent and RAG codebases, annotate security risks, and evaluate detection tools at $150 per hour. This contract role requires 20+ hours per week and strong application security experience.
Posted Oct 7, 2026
Transcribe Finnish audio, add linguistic labels, review other contributors’ work, and flag dialect differences or unclear passages. This part-time contractor role pays $20 to $30 per hour and accepts applicants in listed countries.
Posted Oct 7, 2026
Review technology contracts, simulate negotiations, and evaluate AI responses for legal accuracy and risk. This remote, part-time contractor role pays $80 to $110 per hour.
Posted Oct 6, 2026
Review and improve AI-generated product roadmaps, feature specifications, and backlogs using real product management frameworks. This remote contract role requires 20 or more hours per week and professional English.
Posted Oct 6, 2026
Create realistic backend feature and bug-fix tasks for AI coding systems, then build deterministic verifiers that assess solutions. Pay is $30 to $100 per hour equivalent, paid per task that meets the project specifications.
Posted Oct 6, 2026
Analyze short speech recordings for vocal traits, emotion, delivery, and audio quality. This part-time contractor role pays $30 to $70 per hour for careful, structured assessments.
Posted Oct 6, 2026
Review and improve AI-generated legal work involving litigation, legal analysis, case strategy, and procedure. Pay is $80 to $170 per hour for qualified attorneys with a U.S. law license.
Posted Oct 5, 2026
AI training and data labeling involve human work used to prepare and review examples for artificial-intelligence systems. Depending on the individual role, tasks can include labeling images or video, transcribing or recording audio, writing or rating model responses, evaluating search results, translating text, reviewing code, or applying subject-matter knowledge. For applicants located in Brazil, only the individual posting can confirm whether that opportunity accepts applications from Brazil and explain the work involved.
OpenTrain is the hiring organization for these roles, and candidates apply through OpenTrain. OpenTrain may place or refer successful candidates to the client whose project they will support. Review each individual posting for the details and requirements that apply to that opportunity, including whether applicants located in Brazil are eligible.
