Find remote AI training and data labeling jobs open to applicants in Brazil.
Review technical drawings, CNC documents, construction plans, and safety-related plans for AI training. This remote contractor role pays $55 to $60 per hour and requires strong industry experience.
Posted Sep 30, 2026
Create and evaluate psychiatric case studies, assessments, and AI-generated mental health content in Japanese and English. This remote, part-time contractor role pays $100 to $200 per hour.
Posted Sep 30, 2026
Work remotely as a part-time contractor evaluating aerospace, defense, and marine inspection materials for AI training. The role pays $60 per hour and requires at least 8 years of complex quality inspection experience.
Posted Sep 30, 2026
Review aircraft maintenance records, inspection materials, approach plates, and AI outputs using FAA standards. This remote contractor role pays $60 per hour and requires deep aviation maintenance experience.
Posted Sep 30, 2026
Review microstructures, welds, coatings, heat treatment evidence, and additive manufacturing builds for AI training. This remote contract role pays $60 per hour and requires strong standards-based judgment, but no prior AI experience.
Posted Sep 30, 2026
Review radiographic, ultrasonic, magnetic particle, and penetrant inspection data to help train AI systems. This remote, part-time contractor role pays $60 per hour and requires NDT Level II or III certification plus eight years of experience.
Posted Sep 30, 2026
Review PCB files, assemblies, wire harnesses, semiconductor packages, and inspection results as an electronics quality expert helping create better AI training data. This remote, part-time contractor role pays $60 per hour.
Posted Sep 30, 2026
Use your field troubleshooting knowledge to review AI training scenarios involving industrial systems, controls, and safety codes. This remote contractor role pays $60 per hour and requires fluent English.
Posted Sep 30, 2026
Review AI-generated sports and fantasy-sports outputs against real league rules, scoring systems, draft values, and playoff logic. This contractor project is expected to last up to two weeks and requires 40 hours per week, with part-time work potentially available.
Posted Sep 29, 2026
Review AI-generated psychological content, case studies, and assessments in Japanese and English for $100 to $200 per hour. A psychology PhD and professional bilingual fluency are required, and applications start through OpenTrain.
Posted Sep 29, 2026
Build and deploy multi-step AI agent workflows for mathematical and scientific reasoning. This remote, four-week contractor role requires advanced Python, production agent systems experience, and 40 hours per week.
Posted Sep 28, 2026
Review and improve AI-generated legal responses using your experience with contracts, legal research, and regulatory guidance. This part-time contract role is open worldwide and requires at least 20 hours per week.
Posted Sep 26, 2026
Create reproducible, terminal-based scientific computing tasks that test AI agents on physics, chemistry, materials science, and astronomy workflows. This five-week remote contractor assignment pays $300 per approved task.
Posted Sep 26, 2026
Create and evaluate multi-step computational mathematics tasks for AI agents, with expert solutions, tests, grading criteria, and documentation. This remote five-week contractor assignment pays $300 per approved task and requires at least 40 hours per week.
Posted Sep 26, 2026
Create practical lifestyle workflows that help an AI assistant turn plain-text requests into useful Google Sheets applications. You will write domain guidance, build reference sheets, test generated apps, and review quality.
Posted Sep 26, 2026
Build Python connectors that replicate business software or create and evaluate realistic AI agent tasks. This remote, four-week contract pays $300 per approved task and requires at least one approved task per day.
Posted Sep 26, 2026
Design adversarial prompts, review image edits against safety rules, and write clear evaluations that help improve AI systems. This part-time role is open worldwide and requires 20+ hours each week.
Posted Sep 26, 2026
Work remotely on AI training projects that use mechanical design expertise. Create CAD models, interpret drawings, and improve manufacturing documentation for $40 to $80 per hour.
Posted Sep 25, 2026
Transcribe and review Danish audio for AI training at $24 to $30 per hour. This part-time contractor role suits fluent Danish speakers with professional or research experience in transcription and annotation.
Posted Sep 25, 2026
Review AI-generated code patches for open source repositories, explain your decisions, and assess other reviewers’ work. Pay is $150 to $300 per hour equivalent, paid per task that meets project specifications, with about 15 hours per week.
Posted Sep 25, 2026
Evaluate AI-generated logistics and supply chain workflows, check routing and dispatch rules, and approve outputs against professional standards. This remote contractor project runs up to two weeks and requires 20+ hours each week.
Posted Sep 25, 2026
Review AI-generated project plans, schedules, and status reports using practical project management expertise. This remote contract role requires English fluency, 20+ hours weekly, and PST overlap.
Posted Sep 25, 2026
Review AI-generated HR tools and turn People Operations policies into spreadsheet rules, formulas, and quality standards. This worldwide contractor role suits HR professionals with five or more years of practical experience.
Posted Sep 25, 2026
Earn $70 to $90 per hour as an English-speaking contract redlining attorney evaluating AI responses to commercial agreement scenarios. Use your transactional legal experience to improve legal AI.
Posted Sep 24, 2026
Review and improve book manuscripts, assess AI-generated editorial work, and help shape editorial standards for AI training. This remote contractor role pays $80 to $120 per hour and requires extensive professional book-editing experience.
Posted Sep 24, 2026
Record polished Spanish voice-over audio for AI training and media projects at $200 per finished hour. This flexible remote contractor role requires professional recording experience, strong diction, and a high-quality setup.
Posted Sep 24, 2026
Create terminal-based Earth science tasks for AI agents using scientific programming, geospatial data, modeling, and objective evaluation. This remote contractor assignment pays $300 per approved task and runs for five weeks.
Posted Sep 24, 2026
Review executive sales, revenue, and go-to-market slides, rebuild them in PowerPoint, and explain your design decisions. This remote, part-time contract pays $150 to $350 per hour for project-based assignments.
Posted Sep 24, 2026
Review technology contracts, run simulated negotiations, and evaluate AI responses using your legal judgment. This remote, part-time contractor role pays $85 to $105 per hour and requires technology transactions experience.
Posted Sep 23, 2026
Review Toast POS workflows, restaurant transactions, menus, and order flows to help improve AI understanding of hospitality operations. This part-time contractor role pays $28 to $92 per hour and requires daily hands-on Toast POS use.
Posted Sep 23, 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.
