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.
Join OpenTrain to design and solve advanced physics problems that probe LLM reasoning and symbolic skills; remote, part-time contractor work (20+ hrs/week) for candidates with graduate-level physics experience and strong written English.
Posted Jul 17, 2026
Join OpenTrain AI to design and evaluate graduate- and PhD-level mathematics problems that test and improve large language models; work remotely as a contractor for 20+ hours/week building benchmark questions, reviewing model solutions, writing formal Lean proofs, and validating Python computations.
Posted Jul 17, 2026
Join OpenTrain AI as a French Audio Transcription QA Specialist to review multi-channel French conversations, verifying verbatim transcriptions, speaker diarization, timestamps, and content safety. Remote, contract, part-time work requiring native French and 20+ hours/week.
Posted Jul 17, 2026
Join OpenTrain to QA multi-channel German audio and verified transcriptions for a high-quality multilingual evaluation dataset. Remote, 8-week contractor role (~20+ hrs/week) requiring native German, precise timestamping, JSON validation, and multi-speaker expertise.
Posted Jul 17, 2026
Join OpenTrain to evaluate AI-generated Korean transcriptions and diarization for multi-channel conversational audio; remote, part-time contractor work requiring 20+ hours/week and strong Korean transcription/QC skills.
Posted Jul 17, 2026
Join OpenTrain as a remote Arabic Audio Transcription QA Specialist reviewing multi-channel conversations for an evaluation-grade speech dataset. This part-time contractor role (20+ hrs/week) is ideal for native Arabic speakers skilled in verbatim transcription, diarization, timestamps, metadata, an
Posted Jul 17, 2026
Review AI-generated Japanese transcriptions and diarization for multi-channel, conversational audio—validating timestamps, speaker IDs, and preserving unnormalized speech. Remote, contract work for fluent Japanese speakers with a strong ear; ~20+ hours/week.
Posted Jul 17, 2026
Join OpenTrain AI to evaluate Italian multi-channel transcriptions and diarization for a high-accuracy dataset; remote, part-time contractor work (20+ hrs/week) that requires native/fluent Italian and experience validating JSON metadata and timestamps.
Posted Jul 17, 2026
Remote contract role reviewing AI-generated Spanish multi-speaker transcriptions, diarization, and timestamps for strict accuracy and metadata alignment; 20+ hours/week, worldwide, intermediate-level work for fluent Spanish reviewers with ASR/QA experience.
Posted Jul 17, 2026
Review AI-generated Portuguese (Brazil) transcriptions and diarization for multi-channel recordings, validating timestamps, speaker labels, and verbatim unnormalized speech. Remote, part-time contract role (20+ hrs/week) for entry-level contributors with transcription QA experience.
Posted Jul 17, 2026
Join OpenTrain as a remote Chemical Reasoning & Discovery Engineer creating chemistry-focused reasoning datasets and reproducible evaluation rubrics for LLMs. This 8-week, part-time contractor role (~20+ hrs/week) requires 4 hours overlap with PST and is ideal for experienced chemists.
Posted Jul 17, 2026
Join OpenTrain to evaluate and annotate AI-generated U.S. legal responses using structured rubrics; requires a J.D. and 3+ years of U.S. practice or teaching. Flexible part-time contract (10–30 hrs/week), ~1 month with possible extension.
Posted Jul 17, 2026
Join OpenTrain to evaluate AI chatbot responses for real small-business scenarios, creating prompts, running short conversations, and providing structured feedback that improves models. This 10-week, remote contract is entry-level and requires business knowledge and 20+ hours/week availability.
Posted Jul 17, 2026
Record Spanish (Latam) voice-overs for AI training projects on a flexible, remote contract basis (20+ hrs/week). Ideal for voice actors with a professional home studio, demo reel, and experience taking direction or doing dubbing/ADR.
Posted Jul 17, 2026
Record high-quality French voice-overs for AI speech and language training in a flexible, remote contractor role. Ideal for experienced voice actors with a professional home studio and availability for 20+ hours/week.
Posted Jul 17, 2026
OpenTrain AI is hiring an experienced Arabic voice actor to record high-quality, emotionally expressive voice-overs for characters and stories. This flexible, remote contract role expects 20+ hours/week, reliable delivery from a home or studio setup, and the ability to revise reads to direction.
Posted Jul 17, 2026
Flexible freelance role recording Japanese voice-overs for characters, dubbing, and localization; requires a demo reel, professional recording setup, and 20+ hours/week availability. Work remote or in-studio on varied AI training projects through OpenTrain.
Posted Jul 17, 2026
Work remotely as a Tagalog Analytical Content Reviewer helping fine-tune LLMs: analyze Tagalog text, create reasoning scenarios, and provide detailed annotations. Contract, 20+ hours/week with required overlap to US time zones.
Posted Jul 17, 2026
Join OpenTrain as a remote Malay Language AI Analyst to analyze and summarize complex text, research factual claims, and create Q&A scenarios that improve large language models. This contractor role requires fluency in Malay and English and strong analytical reasoning.
Posted Jul 17, 2026
Join OpenTrain AI as a Hebrew Language AI Analyst to improve large language models by summarizing texts, validating claims, and creating reasoning examples. Remote, contractor role for bilingual Hebrew/English contributors offering 20+ hours/week of flexible, entry-level work.
Posted Jul 17, 2026
Work remotely as a Turkish-English content reviewer to improve large language models by analyzing, summarizing, and validating Turkish text; bilingual fluency and strong analytical skills required. Flexible contractor role with 20+ hrs/week expectation and some overlap with UTC-8 hours.
Posted Jul 17, 2026
Join OpenTrain as a remote Swedish Analytical AI Trainer to help fine-tune large language models through summarization, research-backed validation, and scenario-based analytical tasks; part-time contractor work requiring Swedish and English and 20+ hours/week with some US-hours overlap.
Posted Jul 17, 2026
Work remotely as a Danish-language AI trainer: read and summarize long texts, research and validate claims, solve analytical puzzles, and provide clear answers and annotations to improve language models. Contractor role, 20+ hours/week with some overlap to US (UTC-8) hours.
Posted Jul 17, 2026
Work remotely as a Korean-English AI content analyst helping train and evaluate multilingual models through summarization, online verification, reasoning puzzles, and writing clear answers; part-time contractor work starting at 20+ hours/week with flexible scheduling. Entry-level candidates with str
Posted Jul 17, 2026
Join OpenTrain to improve LLMs by analyzing Japanese texts: summarize, fact-check, and craft QA scenarios that teach models. Remote part-time contractor role for bilingual Japanese/English contributors, 20+ hours/week with some overlap to US hours.
Posted Jul 17, 2026
Work remotely as a Dutch-English Analytical Content Reviewer for OpenTrain: spend 20+ hours/week reading, summarizing, researching, and annotating long-form text to improve language models through evaluation ratings, RLHF, and QA tasks.
Posted Jul 17, 2026
Join OpenTrain as a remote Arabic Content Analyst to read, verify, and break down Arabic content, craft analytical prompts and model responses, and provide detailed annotations that improve LLM reasoning; bilingual Arabic/English required and this role requires 40 hours/week overlapping US Pacific t
Posted Jul 17, 2026
Join OpenTrain to analyze Italian content, verify claims through online research, and craft clear explanations and scenarios that teach LLMs. This remote contractor role requires fluency in Italian and English, strong analytical writing, and careful judgment to improve model behavior.
Posted Jul 17, 2026
Work remotely as a bilingual English/German AI Content Analyst to summarize long-form content, fact-check claims, and build reasoning scenarios that help train large language models. Flexible contractor, part-time role (20+ hrs/week) with some US-hour overlap.
Posted Jul 17, 2026
Join OpenTrain to help train large language models by reading, summarizing, reasoning, and annotating French and English content. Remote, contractor role requiring bilingual fluency and 20+ hours/week with some US-time overlap.
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.
