Looking for remote AI training or data-labeling work while located in Estonia? 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. AI-training work can include tasks such as labeling images or video, transcribing audio, evaluating model outputs, or translating text; inspect each posting to learn what the role requires.
Join OpenTrain AI to transcribe and linguistically review Uzbek video content: timestamp dialogue, annotate emotion and tone, and provide grammatical and idiomatic feedback. Part-time contractor role (min 15 hrs/week, under 20), paid $45–$95/hour, remote worldwide.
Posted Jun 30, 2026
Remote contract role transcribing and annotating Uyghur video with precise timestamps, tone evaluation, and grammatical analysis; 20+ hours/week, worldwide, paid $40–$95 USD/hour. Entry-level candidates with strong Uyghur/English skills and transcription experience are encouraged to apply.
Posted Jun 30, 2026
Work part-time as a Tibetan language AI trainer: translate, review, annotate, and evaluate Tibetan text to improve language models. Remote contractors worldwide; 20+ hours/week; hourly pay $40–$95.
Posted Jun 30, 2026
Join OpenTrain AI to transcribe and evaluate Tamang-language audio and multimedia on a remote, part-time contract. Competitive pay ($40–$95/hr), minimum 15 hours/week; you’ll provide precise transcriptions, timestamping, and clear evaluation feedback to improve AI behavior.
Posted Jun 30, 2026
Contractor role reviewing Spanish (Spain) audio transcriptions and adding linguistic annotations — 20+ hours/week, paid $10–$20/hour. Join OpenTrain to help improve AI language models with precise, independent annotation work.
Posted Jun 30, 2026
Join OpenTrain AI to refine machine-generated Spanish (Mexico) transcriptions, add metadata, and flag cultural nuances for AI training datasets. Remote, entry-level contract work paying $10–$20 USD/hour with a typical commitment of 20+ hours/week.
Posted Jun 30, 2026
Join OpenTrain AI to transcribe and annotate Romanized Hindi audio and text, correct machine transcripts, and add metadata; remote contract work at $8–$16 USD/hr with a 20+ hour weekly commitment. Ideal for detail-oriented transcribers fluent in Romanized Hindi.
Posted Jun 30, 2026
Join OpenTrain AI to build and optimize Panda3D-based 3D simulations that train machine learning models; contract, remote work at 20+ hrs/week with pay between $50–$120 USD/hour. You'll code in Python and C++, collaborate via GitHub, and document technical designs.
Posted Jun 30, 2026
Contribute rigorous, publication-grade physics solutions to train next-generation AI. Contract role paying $80–$140/hr for ~10 hours/week over 8–10 weeks; PhD or advanced-stage PhD candidates with LaTeX and Python/SymPy experience encouraged to apply.
Posted Jun 30, 2026
Seeking a remote Physics PhD to create, review, and evaluate advanced physics problem sets and model outputs for AI training; part-time contract (~20 hrs/week) paying $80–$90/hr for 1–3 months. Work focuses on text tasks: question answering, text generation, and evaluation.
Posted Jun 30, 2026
Apply your PhD engineering expertise to write authoritative responses, design experiments, and analyze results for AI training; remote, part-time contract at $80–$90/hr for 20+ hours/week. English required; worldwide applicants welcome.
Posted Jun 30, 2026
Join OpenTrain as a remote contractor reviewing Node.js, JavaScript, and TypeScript code to create high-quality training data for AI systems; part-time (≈20 hrs/week) for 1–3 months, paid $30–$90/hr. Bring strong backend experience and clear technical communication.
Posted Jun 30, 2026
Join OpenTrain to transcribe and annotate Myanmar–English video data with precise timestamps, cultural insight, and linguistic analysis. Flexible part-time contractor work (20+ hrs/week) paying $45–$95/hr for high-quality bilingual reviewers.
Posted Jun 30, 2026
Join OpenTrain to apply your military operations, targeting, and international humanitarian law expertise to evaluate AI model outputs and design policy-relevant evaluation tools; remote contract work, 20+ hrs/week, $50–$90/hour. Help shape responsible AI behavior in defense and humanitarian context
Posted Jun 30, 2026
Join OpenTrain to help design taxonomies, rubrics, and benchmarks for detecting self-harm, eating disorders, and suicide risk in AI systems; remote, contractor role (20+ hrs/week) paying USD $50–$90/hr, English required.
Posted Jun 30, 2026
OpenTrain is hiring a PhD-level mathematician to review, create, and evaluate advanced mathematical content for AI training—remote, contract role at 20+ hrs/week, paid $60–$90/hr. Help build rigorous math datasets, write problems and proofs, and shape how models learn.
Posted Jun 30, 2026
Join OpenTrain as a remote Marketing Strategy PowerPoint Consultant to craft executive-level narratives and high-impact slides from research and data. Contractor role, 20+ hours/week, paid $30–$55/hr; English required, open to applicants worldwide.
Posted Jun 30, 2026
Join OpenTrain to create and evaluate realistic enterprise marketing prompts, campaign plans, and stakeholder materials that teach AI systems how marketing teams work; up to $40/hr, 20+ hours/week, remote and contract. Ideal for experienced marketing ops and business writers who enjoy prompt design
Posted Jun 30, 2026
Create, edit, and evaluate Portuguese marketing presentations, reports, and spreadsheets to support AI training. Part-time contractor role (20+ hrs/week), worldwide, native Portuguese required — earn up to $55/hr.
Posted Jun 30, 2026
Join OpenTrain to create, translate, and evaluate Japanese marketing documents for AI training—remote contractor, part-time (20+ hrs/week) with pay from $30–$70/hr. Native Japanese and 3+ years of marketing experience required.
Posted Jun 30, 2026
Join OpenTrain as a part-time contractor producing and reviewing French marketing documents, presentations, and spreadsheets — remote, 20+ hours/week, paid hourly (USD $10–$55/hr). Use your marketing experience and native French skills to help train next-generation AI.
Posted Jun 30, 2026
Join OpenTrain AI as a remote, bilingual Marketing Documents Specialist to create and review Chinese–English marketing materials for AI training; part-time contractor work at $10–$55/hr with a 20+ hour weekly expectation. Bring marketing experience, native Chinese, and strong Office skills.
Posted Jun 30, 2026
Review marketing and sales decks, build rubrics, analyze campaign and dashboard data, and help train AI business tools in a contract role paying $50–$60/hr for 20+ hours/week. Join OpenTrain to grow a flexible freelance career shaping how commercial AI behaves.
Posted Jun 30, 2026
Join OpenTrain as a part-time, remote Mandarin–English translation specialist helping train AI with high-quality business translations, localization, and proofreading. Flexible contract work under 20 hours/week with pay ranging $45–$95 USD/hour.
Posted Jun 30, 2026
Remote contractor role developing strategic recommendations, executive presentations, financial models, and scoring rubrics used to train AI; $50–70/hr, 20+ hrs/week. Join OpenTrain to apply consulting experience to real business documents and help shape model behavior.
Posted Jun 30, 2026
Expert M&A attorney needed to redline contracts, perform simulated negotiations, and evaluate AI responses to improve contract-review models. Remote contractor role (OpenTrain AI), 20+ hrs/week, $80–$105/hr; requires J.D., active U.S. bar, and 2+ years M&A experience.
Posted Jun 30, 2026
Join OpenTrain to transcribe Lingala video content, annotate speaker tone and intent, and provide translation and grammar evaluations to improve AI language models; remote contract work, entry-level, 20+ hrs/week, paid $45–$95 USD per hour.
Posted Jun 30, 2026
Help train legal AI by reviewing contracts, interpreting regulations, and writing concise legal summaries for a remote contractor role. Entry-level friendly, 20+ hrs/week, paid $15–$25/hr, English required.
Posted Jun 30, 2026
Work remotely as a contract Korean–English transcription and translation specialist for AI training: time-stamped video transcriptions, faithful translations, and nuanced tone evaluation. Minimum 15 hours/week (typical projects 20+); pay USD $20–$65/hr.
Posted Jun 30, 2026
Remote contractor role reviewing Panda3D and Python game code for AI training—provide clear critiques, example fixes, and gameplay insights; 20+ hrs/week, pay up to $120/hr. Ideal for Python game devs comfortable with C++ engine integration and GitHub workflows.
Posted Jun 30, 2026
Roles that explicitly accept applicants located in Estonia involve human review and preparation of examples used to train or evaluate AI systems. Depending on the individual posting, tasks can include annotating images or video, transcribing or labeling audio, rating or writing model responses, evaluating search results, translating text, or applying subject-matter knowledge to verify outputs. Each listing specifies the exact responsibilities, required languages, and any domain knowledge needed, so candidates should read postings closely to see whether the tasks match their skills and interests.
All applications for roles that accept applicants located in Estonia are handled through OpenTrain. OpenTrain is the hiring organization for the public roles on this site and may place or refer successful candidates to the client whose project they will support. Eligibility, hours, pay, and other hiring details are set by each posted role, so review the posting for the rules that apply to that opportunity.
