Looking for remote AI-training or data-labeling work while located in Cuba? These listings are remote AI training and data labeling roles that explicitly accept applicants located in Cuba. OpenTrain is the hiring organization; candidates apply through OpenTrain, and OpenTrain may place or refer successful candidates to the client whose project they will support. Read each posting carefully: individual listings control eligibility, qualifications, hours, and pay, so check the live role for the exact requirements before applying.
Design realistic cloud infrastructure tasks and reproducible environments to train next-generation AI systems. Remote contractor role (20+ hrs/week), $40–$100/hr, requires senior hands-on platform experience in cloud, SRE, or DevOps.
Posted Jul 21, 2026
Join OpenTrain AI as a remote, part-time Macroeconomic Modeling Specialist to build and validate EViews-based time-series forecasting models (VAR, VECM, ARIMA). This contract role pays $35–$100/hr, requires strong econometrics and EViews scripting, and is under 20 hrs/week.
Posted Jul 21, 2026
Build high-fidelity Open 3D Engine simulations and Python/C++ automation for synthetic data used in AI training. Contract, remote, 20+ hrs/week; pay range $20–$120/hr depending on scope and experience.
Posted Jul 21, 2026
Join OpenTrain as a Lightworks post-production expert reviewing AI-generated guidance for advanced editing workflows. Remote, contract, part-time (20+ hrs/week), paid $50–$100 USD per hour to help improve how AI understands real Lightworks workflows.
Posted Jul 21, 2026
Build and refine 2D games with Cocos2d-x to generate high-quality training data for AI—remote, contract, 20+ hrs/week, $50–$110/hr. Entry-level developers with proven Cocos2d-x experience, strong problem-solving, and clear communication are encouraged to apply.
Posted Jul 21, 2026
Build, validate, and automate advanced macroeconomic time-series models in EViews for a remote contract role (20+ hrs/week) with pay up to $100/hr. Translate statistical output into concise reports and support policy-facing economic narratives.
Posted Jul 21, 2026
OpenTrain AI seeks a Qucs-S expert to design, simulate, and evaluate electronic circuits for document-based AI training projects; contractor, remote, 20+ hours/week, $50–$120/hr. Bring real-world circuit experience and clear technical writing to help teach AI systems.
Posted Jul 21, 2026
Contractor role designing rigorous scientific-reasoning evaluation datasets for advanced AI models; requires 3+ years of physics experience and 20+ hours/week. Work remotely for OpenTrain AI to author multi-step tasks, reference solutions, and scoring rubrics for model assessment.
Posted Jul 20, 2026
Record high-quality Korean voice-overs for AI speech training in a flexible, remote contractor role requiring a professional home studio and at least 20 hours/week. Ideal for voice actors with strong vocal control, a demo reel, and experience following direction.
Posted Jul 20, 2026
Evaluate a personalization feature in Polish by designing short multi-turn prompts, comparing paired model responses, and writing concise, defensible quality rationales. Contractor role, $20/hr, remote, ~4 hours/day with 4-hour overlap with PST for a 1-month engagement.
Posted Jul 20, 2026
Join OpenTrain to evaluate a new personalization feature in Japanese: design multi-turn prompts, compare paired model responses, and write clear rationales in a remote, 3-month contractor role paying $15/hr with PST overlap.
Posted Jul 20, 2026
Join OpenTrain as a remote Bahasa Indonesian Content Review Analyst: analyze and summarize long content, fact-check claims, and create analytical QA examples to improve large language models. Contractor role with some US-hours overlap, 20+ hours/week typical and up to 40 hours/week, max 12 months.
Posted Jul 20, 2026
Join OpenTrain AI to design, solve, and evaluate challenging mathematics problems that probe LLM reasoning limits; this remote, part-time contractor role expects 20+ hours/week, advanced graduate-level math knowledge, Python ability, and English fluency.
Posted Jul 20, 2026
Record high-quality scripted English voice samples to train and evaluate text-to-speech models. Remote contract, part-time (20+ hrs/week), requires a quiet studio, professional recording gear, and experience performing long-form audio.
Posted Jul 18, 2026
Join OpenTrain AI to evaluate AI-generated responses using your personal Gmail; native German or Korean speakers who can read English will work remotely 3–4 months, typically 20+ hrs/week with required PST overlap. Contractor, part-time role focused on personalization and quality feedback.
Posted Jul 18, 2026
Join OpenTrain as a Contract Playbook General Counsel to draft and refine commercial contract playbooks and templates, provide annotated agreements, and deliver legal feedback that supports AI training. Part-time contractor role (<20 hrs/week) at $90–$130/hr; active state bar required.
Posted Jul 18, 2026
Join OpenTrain AI as a part-time, contract Senior FreeCAD Engineer reviewing and producing parametric CAD models, assemblies, and production drawings. Remote, 20+ hrs/week; pay range $40–$100/hr (USD).
Posted Jul 18, 2026
Review AI-generated Russian multi-speaker transcriptions and diarization for evaluation-grade audio; remote, entry-level contract work requiring 20+ hours/week and strong attention to verbatim fidelity, timestamps, and JSON output checks.
Posted Jul 17, 2026
Contract with OpenTrain as an AI Quality Analyst evaluating a conversational AI personalization feature: design multi-turn prompts, rate side-by-side text responses, and write defensible rationales. 3-month contract, remote, 20+ hrs/week with required PST overlap.
Posted Jul 17, 2026
Review and validate AI-produced C++ code for correctness, efficiency, and reliability in a remote, contractor role. Ideal for intermediate C/C++ engineers who can spend 20+ hours/week giving clear, actionable feedback to improve generated software.
Posted Jul 17, 2026
Join OpenTrain as a Commercial Contracts Attorney to review and annotate M&A diligence documents and help train AI tools used by transaction teams; part-time contract work at $90–$100/hr, 20+ hours/week, remote and worldwide. Bring 5+ years of commercial contract and VDR experience plus a JD and act
Posted Jul 17, 2026
Seeking a licensed M&A/corporate attorney to evaluate deal scenarios, due diligence materials, and AI-generated legal outputs for 20+ hours/week. Remote, contract work paying $80–$100/hr to reviewers with JD and active bar membership.
Posted Jul 17, 2026
Join OpenTrain to draft high-quality commercial agreement templates used to train next-generation AI systems; remote, contract work at $80–$100/hr for 20+ hours/week. Ideal for practicing or recently qualified commercial attorneys with strong drafting experience.
Posted Jul 17, 2026
Work remotely as a part-time contractor annotating and reviewing Portuguese text for AI—20+ hours/week at $30–$65/hr. Use your native or near-native Portuguese and fluent English to label, evaluate, and improve language data for machine learning.
Posted Jul 17, 2026
Join OpenTrain as a remote Bengali language expert translating, localizing, and reviewing content while working 20+ hours/week. Competitive pay up to $30/hr on a flexible contractor, part‑time schedule—help shape how AI understands Bengali.
Posted Jul 17, 2026
Join OpenTrain AI to evaluate and localize Hindi text for AI systems, providing clear, evidence-based feedback to improve model behavior. Remote contractor work paying $10–$30/hr with flexible weekly hours (20–40+ hrs depending on project).
Posted Jul 17, 2026
Join OpenTrain as a remote Hebrew Language Expert to translate, localize, and QA Hebrew content while shaping language workflows; part-time contractor work at 20+ hours/week with hourly pay from $10–$30. Ideal for translators, editors, and localization pros fluent in Hebrew and English.
Posted Jul 17, 2026
Join OpenTrain AI as a remote French Language Expert providing translation, localization, proofreading, and linguistic guidance for multilingual AI-training projects; part-time contractor role (20+ hrs/week) paid USD $10–$25/hr (listed rate $25/hr), fluent French and English required.
Posted Jul 17, 2026
Join OpenTrain AI to design challenging biology problems and write rigorous step-by-step solutions that probe large language model reasoning; remote, contractor role for experts in biology (20+ hours/week, English required).
Posted Jul 17, 2026
Write and solve postgraduate-level chemistry problems, produce step-by-step explanations with equations and annotated diagrams, and evaluate model outputs to improve generative AI. Contract, part-time role (20+ hrs/week), remote, English required.
Posted Jul 17, 2026
Work described on these postings is human-in-the-loop AI training and data-labeling: preparing, reviewing, or categorizing examples used to train or evaluate models. Tasks can vary by project and may include 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. Inspect each job posting to see precise responsibilities, deliverables, and any required skills.
OpenTrain is the hiring organization for the roles shown and all applications are submitted through OpenTrain; successful candidates may be placed or referred to the client whose project they will support. Eligibility to apply while located in Cuba depends on each posting, so confirm location rules, working hours, required qualifications, and pay details on the live job.
