Find remote AI training and data labeling jobs open to applicants in Costa Rica.
Create and review advanced biology and health tasks that train and test AI models. This remote four-week contract requires graduate-level expertise, at least four hours per day, and Pacific Time overlap.
Posted Sep 11, 2026
Review scientific computing scripts, worksheets, datasets, proofs, and matrix outputs to help improve AI systems. This remote contractor role requires English fluency, careful judgment, and 40 hours per week with Pacific Time overlap.
Posted Sep 11, 2026
Review Shopify e-commerce workflows, metrics, and data models for AI training. This part-time contractor role pays $60 to $100 per hour and requires at least five years of Shopify experience.
Posted Sep 10, 2026
Review robotic-arm footage, mark frame-accurate actions and outcomes, and create structured video data for AI training. This contractor role pays $22-$70 per hour and requires 20+ hours per week.
Posted Sep 10, 2026
Review business datasets and documents for accuracy, completeness, anomalies, and privacy compliance. This remote contractor role pays $31 to $60 per hour and requires at least 20 hours each week.
Posted Sep 9, 2026
Create difficult question-and-answer pairs that test advanced AI models, supported by citations and clear reasoning. This remote contractor role pays $40 to $90 per hour and requires strong research experience and written English.
Posted Sep 8, 2026
Support AI training by creating and reviewing CAD models, simulation models, calculations, schematics, and engineering documentation. This remote 8-week contract requires 20 to 40 hours weekly and at least 10 years of relevant experience.
Posted Sep 8, 2026
Review ServiceNow workflow scenarios, improve AI-generated responses, and explain your judgments in structured JSON tasks. This remote contractor role requires at least 20 hours per week and four hours of PST overlap.
Posted Sep 8, 2026
Use your CFD and aerodynamics expertise to create, solve, and review engineering tasks for AI training. This fully remote contractor role offers about 15 flexible hours per week and $80 to $150 per hour.
Posted Sep 8, 2026
Use advanced physics expertise to create clear, verified problem solutions that help train AI systems. This remote contractor role pays $100 to $200 per hour and runs for 8 to 10 weeks.
Posted Sep 8, 2026
Use advanced statistical physics, quantum information, or condensed matter expertise to evaluate AI training material. This remote contractor role pays $100 to $200 per hour for 5 to 10 or more flexible hours weekly.
Posted Sep 8, 2026
Use your circuit design experience to create, solve, and review AI training tasks across analog, digital, power, mixed-signal, and RF systems. This remote contractor role pays $80 to $150 per hour for about 15 flexible hours weekly.
Posted Sep 7, 2026
Use computational materials science, Python, and simulation skills to create and evaluate AI-training tasks. This remote contractor role offers flexible work of about 15 hours per week.
Posted Sep 7, 2026
Build coding environments and reference solutions that test how well AI models solve real software engineering problems. This remote contractor role offers about 15 hours per week and $50-$100 per hour.
Posted Sep 7, 2026
Build reproducible software engineering environments and reference solutions that help AI systems learn to fix, improve, and review code. This part-time contract pays $50 to $100 per hour and requires strong software development experience.
Posted Sep 7, 2026
Transcribe Mandarin and English audio, review transcripts, and add notes that help train AI systems. This part-time contract pays $20-$30 per hour and requires 20+ hours each week.
Posted Sep 7, 2026
Transcribe and annotate Cantonese and English audio remotely for AI training, earning $20-$35 per hour. This part-time contractor role requires native Cantonese, professional transcription experience, and 20+ hours per week.
Posted Sep 7, 2026
Use mechanical engineering, simulation, and Python skills to create and validate engineering tasks for AI training. This remote contractor role offers flexible work of about 15 hours per week.
Posted Sep 7, 2026
Use your CFD expertise to evaluate and improve AI-generated answers about fluid flow, heat transfer, meshing, turbulence, and validation. This remote contractor role offers $50-$150 hourly pay and requires 20+ hours weekly.
Posted Sep 7, 2026
Transcribe and review Dutch and English audio for AI training at $25-$30 per hour. This remote contract role requires native-level Dutch, strong attention to detail, and 20+ hours per week.
Posted Sep 7, 2026
Transcribe and review Portuguese audio, preserve speaker context, and help improve AI systems. This contractor role pays $10-$18 per hour and requires 20+ hours weekly.
Posted Sep 7, 2026
Analyze Thai and English content, check claims, answer reasoning questions, and create feedback for AI systems. This remote contractor role requires 20+ hours per week and offers flexible work for bilingual candidates.
Posted Sep 7, 2026
Build and improve multi-step AI systems for advanced mathematical reasoning. This four-week contractor assignment requires 40 hours per week, advanced Python, and four hours of Pacific Time overlap.
Posted Sep 7, 2026
Review AI-generated travel and event tools against real professional standards. This remote contractor role needs 4+ years in travel planning, events, agency operations, or hospitality and offers part-time work of 20+ hours per week.
Posted Sep 7, 2026
Review AI-generated logistics tools against real dispatch, routing, scheduling, inventory, and delivery-cost practices. This remote contractor role runs up to 10 weeks and generally requires 40 hours per week with PST overlap.
Posted Sep 7, 2026
Review and redline commercial agreements for an AI training project. This remote contractor role pays $90-$110 per hour and requires a law degree, active U.S. bar admission, and at least four years of transactional experience.
Posted Sep 6, 2026
Create realistic computational physics simulation files, reference solutions, and correctness checks for AI benchmarking. This contract role needs 5+ years of professional modeling experience and is open worldwide.
Posted Sep 6, 2026
Create human-written recipes that teach an AI assistant to turn plain-text requests into useful Google Sheets applications for fitness, events, travel, and pet care. This remote contractor project runs for up to three weeks.
Posted Sep 6, 2026
Review AI-generated meal planning and kitchen outputs using nutrition, dietetics, culinary, and menu-planning expertise. Work remotely for 20 or more hours each week in this contract role.
Posted Sep 6, 2026
Review and improve AI outputs about fantasy sports scoring, drafts, rosters, standings, playoffs, and projections. This worldwide contract role requires deep fantasy sports knowledge and 20+ hours per week.
Posted Sep 6, 2026
AI training and data labeling work can involve preparing information that helps artificial-intelligence systems learn and be evaluated. Depending on the project, tasks may 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 Costa Rica, the relevant posting will state whether the role accepts applications from that country and explain the work involved.
OpenTrain is the hiring organization for roles available through OpenTrain. Candidates apply through OpenTrain, and OpenTrain may place or refer successful candidates to the client whose project they will support. Whether a particular opportunity accepts applicants located in Costa Rica is determined by its individual posting, along with its qualifications and other requirements.
