Curated remote opportunities

Remote AI & Data Training Jobs in Costa Rica 2026

1955 remote jobs open to candidates in Costa Rica in AI & Data Training. Updated daily.

Plan Documents Specialist - Freelance Project

Meridial AI
AI Expert - Operations Full-time
Operations Onboarding Microsoft Teams +12 Consulting Compliance Management Research Documentation Audit Microsoft Excel Product Management Document Drafting Design Review Project Management Audit Support
  • Costa Rica
  • $6/hr
  • Feb 12, 2026

Who Are We Looking For? We’re looking for a dedicated specialist to assist our Operations team to manage plan document drafting, amendments, restatements, and plan setup.

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LaTex Specialist (Fluent in Thai) - Freelance AI Trainer Project

Meridial AI
AI Expert - Mathematics Full-time
LaTeX Thai AI +12 Training Education Formatting Management Troubleshooting Editing Reasoning Accuracy Consistency Engineering Mathematics Physics
  • Remote (Global)
  • $8 – $65/hr
  • Feb 12, 2026

Are you a LaTeX expert fluent in Thai eager to shape the future of AI? Large‑scale language models are evolving from clever chatbots into powerful engines of scientific discovery.

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LaTex Specialist (Fluent in Russian) - Freelance AI Trainer Project

Meridial AI
AI Expert - Mathematics Full-time
LaTeX Russian AI +12 Training Education Formatting Management Troubleshooting Editing Reasoning Accuracy Consistency Engineering Mathematics Physics
  • Remote (Global)
  • $8 – $65/hr
  • Feb 12, 2026

Are you a LaTeX expert fluent in Russian eager to shape the future of AI? Large‑scale language models are evolving from clever chatbots into powerful engines of scientific discovery.

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LaTex Specialist (Fluent in German) - Freelance AI Trainer Project

Meridial AI
AI Expert - Mathematics Full-time
LaTeX German AI +12 Training Education Formatting Management Troubleshooting Editing Reasoning Accuracy Consistency Engineering Mathematics Physics
  • Remote (Global)
  • $8 – $65/hr
  • Feb 12, 2026

Are you a LaTeX expert fluent in German eager to shape the future of AI? Large‑scale language models are evolving from clever chatbots into powerful engines of scientific discovery.

View Details Apply Now

Medicine Specialist (Fluent in Japanese) - Freelance AI Trainer Project

Meridial AI
AI Expert - Clinical & Medical Full-time
Medicine Japanese AI +12 Training Education Research Healthcare Pharmacology Pathology Diagnostics Ethics Physiology Epidemiology Immunology Diagnosis
  • Remote (Global)
  • $8 – $65/hr
  • Feb 12, 2026

Are you a fluent Japanese-speaking medicine expert eager to shape the future of AI? Large‑scale language models are evolving from clever chatbots into powerful engines of scientific discovery.

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Medicine Specialist (Fluent in German) - Freelance AI Trainer Project

Meridial AI
AI Expert - Clinical & Medical Full-time
Medicine German AI +12 Training Education Research Healthcare Pharmacology Pathology Diagnostics Ethics Physiology Epidemiology Immunology Diagnosis
  • Remote (Global)
  • $8 – $65/hr
  • Feb 12, 2026

Are you a fluent German-speaking medicine expert eager to shape the future of AI? Large‑scale language models are evolving from clever chatbots into powerful engines of scientific discovery.

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LaTex Specialist (Fluent in Spanish - Spain) - Freelance AI Trainer Project

Meridial AI
AI Expert - Mathematics Full-time
LaTeX Spanish AI +12 Training Education Formatting Management Troubleshooting Editing Reasoning Accuracy Consistency Engineering Mathematics Physics
  • Remote (Global)
  • $8 – $65/hr
  • Feb 12, 2026

Are you a LaTeX expert fluent in Spanish (Spain) eager to shape the future of AI? Large‑scale language models are evolving from clever chatbots into powerful engines of scientific discovery.

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LaTex Specialist (Fluent in Spanish- Latin America) - Freelance AI Trainer Project

Meridial AI
AI Expert - Mathematics Full-time
LaTeX AI Spanish +12 Training Education Formatting Management Troubleshooting Editing Reasoning Accuracy Consistency Engineering Mathematics Physics
  • Costa Rica
  • $8 – $65/hr
  • Feb 12, 2026

Are you a LaTeX expert fluent in Spanish (Latin America) eager to shape the future of AI? Large‑scale language models are evolving from clever chatbots into powerful engines of scientific discovery.

View Details Apply Now

Analytical Chemistry Specialist - Freelance AI Trainer Project

Meridial AI
AI Expert - Chemistry Full-time
Chemistry AI Training +12 Education Research Spectroscopy Analysis Testing Optimization Interpretation Quality Assurance Reasoning Accuracy Engineering Communication
  • Remote (Global)
  • $8 – $65/hr
  • Feb 12, 2026

Are you an analytical chemistry expert eager to shape the future of AI? Large‑scale language models are evolving from clever chatbots into powerful engines of scientific discovery.

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Malayalam Language Specialist - Freelance AI Trainer Project

Meridial AI
Bilingual LLM & Translation Full-time
Malayalam AI Training +12 Education Research Communication Translation Grammar Syntax Morphology Semantics Phonetics Pragmatics Accuracy Reasoning
  • Remote (Global)
  • $8 – $65/hr
  • Feb 12, 2026

Are you a Malayalam language expert eager to shape the future of AI? Large‑scale language models are evolving from clever chatbots into powerful engines of linguistic discovery.

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Mathematics Specialist (Fluent in Swedish) - Freelance AI Trainer Project

Meridial AI
AI Expert - Mathematics Full-time
Mathematics Swedish AI +12 Training Education Research Algebra Calculus Linear Statistics Geometry Logic Analysis Optimization Probability
  • Remote (Global)
  • $6 – $65/hr
  • Feb 12, 2026

Are you a mathematics expert fluent in Swedish, eager to shape the future of AI? Large‑scale language models are evolving from clever chatbots into powerful engines of scientific discovery.

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Coding Specialist - Freelance AI Trainer (Fluent in Italian) Project

Meridial AI
AI Expert - Software Engineering Full-time
AI Italian Training +12 Education Research Algorithms Architecture Infrastructure Programming REST API Management Debugging Reasoning Engineering Accuracy
  • Remote (Global)
  • $8 – $65/hr
  • Feb 12, 2026

Are you a coding expert fluent in Italian eager to shape the future of AI? Large‑scale language models are evolving from clever chatbots into powerful engines of scientific discovery.

View Details Apply Now

Coding Specialist (Fluent in Swedish) - Freelance AI Trainer Project

Meridial AI
AI Expert - Software Engineering Full-time
Swedish AI Training +12 Education Research Algorithms Architecture Infrastructure Programming REST API Management Debugging Reasoning Engineering Accuracy
  • Remote (Global)
  • $8 – $65/hr
  • Feb 12, 2026

Are you a coding expert fluent in Swedish eager to shape the future of AI? Large‑scale language models are evolving from clever chatbots into powerful engines of scientific discovery.

View Details Apply Now

Coding Specialist (Fluent in Dutch) - Freelance AI Trainer Project

Meridial AI
AI Expert - Software Engineering Full-time
Dutch AI Training +12 Education Research Algorithms Architecture Infrastructure Programming REST API Management Debugging Reasoning Engineering Accuracy
  • Remote (Global)
  • $8 – $65/hr
  • Feb 12, 2026

Are you a coding expert fluent in Dutch eager to shape the future of AI? Large‑scale language models are evolving from clever chatbots into powerful engines of scientific discovery.

View Details Apply Now

Science Specialist (Fluent in German) - Freelance AI Trainer Project

Meridial AI
Sciences (AI) Full-time
German AI Training +12 Education Research Problem Solving Chemistry Physics Astronomy Reasoning Accuracy Engineering Teaching Communication Insurance
  • Remote (Global)
  • $8 – $65/hr
  • Feb 12, 2026

Are you a science specialist fluent in German, eager to shape the future of AI? Large-scale language models are evolving from clever chatbots into powerful engines of scientific discovery.

View Details Apply Now

Coding Specialist (Fluent in German) - Freelance AI Trainer Project

Meridial AI
AI Expert - Software Engineering Full-time
German AI Training +12 Education Research Algorithms Architecture Infrastructure Programming REST API Management Debugging Reasoning Engineering Accuracy
  • Remote (Global)
  • $8 – $65/hr
  • Feb 12, 2026

Are you a coding expert fluent in German eager to shape the future of AI? Large‑scale language models are evolving from clever chatbots into powerful engines of scientific discovery.

View Details Apply Now

Mathematics Specialist (Fluent in Spanish - Latin America) - Freelance AI Trainer Project

Meridial AI
AI Expert - Mathematics Full-time
Mathematics Spanish AI +12 Training Education Research Algebra Calculus Linear Statistics Geometry Logic Analysis Optimization Probability
  • Costa Rica
  • $6 – $65/hr
  • Feb 12, 2026

Are you a mathematics expert fluent in Spanish (Latin America), eager to shape the future of AI? Large‑scale language models are evolving from clever chatbots into powerful engines of scientific discovery.

View Details Apply Now

Mathematics Specialist (Fluent in Korean) - Freelance AI Trainer Project

Meridial AI
AI Expert - Mathematics Full-time
Mathematics Korean AI +12 Training Education Research Algebra Calculus Linear Statistics Geometry Logic Analysis Optimization Probability
  • Remote (Global)
  • $6 – $65/hr
  • Feb 12, 2026

Are you a mathematics expert fluent in Korean, eager to shape the future of AI? Large‑scale language models are evolving from clever chatbots into powerful engines of scientific discovery.

View Details Apply Now

Mathematics Specialist (Fluent in German) - Freelance Trainer Project

Meridial AI
AI Expert - Mathematics Full-time
Mathematics German AI +12 Training Education Research Algebra Calculus Linear Statistics Geometry Logic Analysis Optimization Probability
  • Remote (Global)
  • $6 – $65/hr
  • Feb 12, 2026

Are you a mathematics expert fluent in German, eager to shape the future of AI? Large‑scale language models are evolving from clever chatbots into powerful engines of scientific discovery.

View Details Apply Now

Coding Specialist (Fluent in Spanish - Latin America) - Freelance AI Trainer Project

Meridial AI
AI Expert - Software Engineering Full-time
Spanish AI Training +12 Education Research Algorithms Architecture Infrastructure Programming REST API Management Debugging Reasoning Engineering Accuracy
  • Costa Rica
  • $8 – $65/hr
  • Feb 12, 2026

Are you a coding expert fluent in Spanish (Latin America) eager to shape the future of AI? Large‑scale language models are evolving from clever chatbots into powerful engines of scientific discovery.

View Details Apply Now

Coding Specialist (Fluent in Japanese) - Freelance AI Trainer Project

Meridial AI
AI Expert - Software Engineering Full-time
Japanese AI Training +12 Education Research Algorithms Architecture Infrastructure Programming REST API Management Debugging Reasoning Engineering Accuracy
  • Remote (Global)
  • $8 – $65/hr
  • Feb 12, 2026

Are you a coding expert fluent in Japanese eager to shape the future of AI? Large‑scale language models are evolving from clever chatbots into powerful engines of scientific discovery.

View Details Apply Now

Senior Quality Reviewer

Claru
QA Reviewer / Auditor Contractor
Annotation Accuracy Editing +12 Engineering Research Rubrics Cadence Monday.com Calibration Slack Documentation Quality Assurance Analysis Quality Review Test Engineering
  • Remote (Global)
  • $55 – $90/hr
  • Feb 11, 2026

Quality review sits between the annotation team and the client. You will sample completed batches, apply the scoring rubric, and produce accuracy reports that the project lead uses to give feedback to annotators.

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Safety Evaluation Analyst

Claru
Red Team / Safety Evaluator Contractor
AI Cybersecurity Testing +12 Machine Learning Journalism Writing Onboarding Reporting Slack Engineering Research Analysis Safety Evaluation Penetration Testing Creative Writing
  • Remote (Global)
  • $65 – $75/hr
  • Feb 10, 2026

We need people who can think like attackers. You will methodically test AI models against a taxonomy of failure modes: harmful content generation, jailbreak susceptibility, PII leakage, bias amplification, and more.

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