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 as a part-time contractor building production ML pipelines, deploying models on AWS, and orchestrating containerized workloads; remote worldwide, 20+ hrs/week, pay $30–$90/hr.
Posted Jun 28, 2026
Join OpenTrain AI as a remote contractor to evaluate and improve AI outputs for .NET, C#, AWS, and Azure—review code snippets, diagrams, and technical docs. Part-time (20+ hrs/week) with competitive pay in the posted $30–$90/hr range.
Posted Jun 28, 2026
Join OpenTrain AI to label humanoid robotics video for VLA models as a Level B annotator — 20+ hrs/week, contractor, paid USD $6/hr (range $5–$8); Encord experience preferred but other platform experience is accepted.
Posted Jun 27, 2026
Join OpenTrain as a contract redlining attorney to perform simulated negotiations, review AI contract responses, and build objective evaluation frameworks; part-time remote contractor work, flexible schedule, $80–$105/hr for ~20 hours/week over 1–3 months.
Posted Jun 27, 2026
Use your telecom systems expertise to train and evaluate AI: remote, contract, 20+ hrs/week with pay up to $75/hr. Review AI-generated telecom content, document protocols, and shape training materials for practical AI understanding.
Posted Jun 27, 2026
Work remotely as a Swedish-language AI training specialist translating, proofreading, and localizing business documents and customer communications; 20+ hours/week, contractor, paid $45–$95 USD/hr. Bring native Swedish fluency and a quality-first approach to shape real-world AI language behavior.
Posted Jun 27, 2026
Review scientific figures, lab reports, and technical publications to evaluate model outputs and deliver clear, rubric-based feedback; remote contractor role paying $40–$50/hr, 20+ hrs/week, estimated project earnings $6,400–$8,000.
Posted Jun 27, 2026
Join OpenTrain AI as a remote Sanskrit Language Specialist to translate, proofread, and create high-quality Sanskrit content on a part-time contract basis (under 20 hrs/week). Competitive pay range $45–$95/hr based on work and experience.
Posted Jun 27, 2026
Use your private equity experience to shape finance-focused AI: evaluate model outputs, review investment materials, and create scenario-based training content. Part-time remote contract, 20+ hours/week, pay $30–$65/hr (up to $65/hr), English required.
Posted Jun 27, 2026
OpenTrain AI is hiring an intermediate UI/UX Designer for a short contract role (fixed price $100) with a remote, worldwide scope; applicants will complete a brief AI-driven interview that evaluates design skills, tools knowledge, and portfolio work.
Posted Jun 15, 2026
Label and review short educational content about carbohydrates, lipids, proteins, and DNA/RNA in a bilingual Odia–English project. Fixed-price contract ($20) for contributors who can do text generation, rating, and question answering.
Posted May 15, 2026
OpenTrain AI seeks detail-oriented contractors to extract structured data from legal, finance, and compliance documents (PDF/DOCX). Part-time, remote work validating and editing AI draft outputs into a required JSON schema; pay USD 8.00–11.20/hr.
Posted May 14, 2026
OpenTrain AI seeks licensed pathologists (MD/DO) to compare whole‑slide images and rate superresolution algorithm outputs; remote, contract, part‑time work at a competitive hourly rate (typical $150/hr; $100–$200/hr).
Posted May 12, 2026
Join an academic research project validating and refining image–text samples of African cultural content; native fluency required. Flexible, remote contract work paid $0.29 per sample with weekly payouts and an initial 50-sample pilot per language.
Posted Apr 28, 2026
Annotate and restructure accounting and finance PDFs—verify OCR, correct tables, and produce clean HTML and JSON key‑value outputs. Remote contractor role, 20+ hrs/week, $7–$9 USD/hour; ideal for candidates with bookkeeping, audit, or finance reporting experience.
Posted Apr 27, 2026
Record scripted Dutch dialogue for OpenTrain AI using a professional recording setup; native Dutch fluency and clean, unprocessed audio are required. This part-time contractor role is remote, flexible, and pays a competitive hourly rate.
Posted Apr 23, 2026
Rate and evaluate image quality for dataset development in a remote, part-time contractor role paying $5–$7/hr. Must be fluent in English, have intermediate experience with image quality evaluation or annotation, and be available 20+ hours/week.
Posted Apr 15, 2026
Record high-quality narrated audio for AI training with a flexible part-time contract. Must have professional recording equipment, fluent English, and the ability to follow precise tone, pacing, and pronunciation instructions; paid $50/hr (range $40–$60).
Posted Apr 10, 2026
OpenTrain AI is hiring a remote QC specialist to review and correct auto-annotated refinery image frames (8,000). Fixed-price contract ($1,200), 20+ hours/week, using CVAT to adjust bounding boxes and classifications with strong attention to detail.
Posted Apr 5, 2026
Contract role to design and evaluate computer-science problems and validate AI solutions using Python (NumPy/Pandas/SciPy). Remote, project-based work paying $15–$40/hr with a typical commitment of ~10–20 hours/week during active phases.
Posted Apr 5, 2026
Join OpenTrain to design reproducible, industry-grade data science problems and prompts for GenAI training; contract, part-time work (≈10–20 hrs/week) with pay up to $40/hr. Ideal for senior data scientists with expert Python, SQL and ML/MLOps experience.
Posted Apr 5, 2026
Create and verify original computational STEM/ML problems for GenAI training—contract, remote, ~10–20 hrs/week, paid hourly (up to $40/hr). Must have 5+ years ML experience, expert Python and SQL, strong statistics, and written English (C1+).
Posted Apr 5, 2026
Join OpenTrain AI as a remote, part-time contractor to evaluate and localize AI-generated Chinese (Simplified) and English content; requires 5+ years' localization/translation experience, native or near-native Chinese and C1 English, 20+ hours/week, paid $17–$23/hr.
Posted Apr 3, 2026
Join OpenTrain AI as a remote, contractor AI Safety LLM Trainer reviewing Korean and English model outputs for safety, policy alignment, and red-team testing; hourly pay $28–$38 and 20+ hours/week. Use senior Trust & Safety experience to rate, analyze, and improve model behavior with clear, reproduc
Posted Apr 3, 2026
Remote, part-time contract reviewing AI outputs for safety, correctness, and cultural nuance in Japanese and English; $27–$31/hr, 20+ hours/week. Use your Trust & Safety and red-teaming experience to shape safer AI behavior across languages.
Posted Apr 3, 2026
Join OpenTrain AI to evaluate and create Japanese-localized AI training content, testing models for accuracy, bias, and cultural fit. Fully remote contractor role paying $24–$31/hr (typical $28/hr); requires native or near-native Japanese and C1-level English.
Posted Apr 3, 2026
Join OpenTrain AI as a remote, part-time contractor reviewing and red-teaming LLM outputs in Hebrew and English to find safety failures and produce labeled evaluation data. $26–$38/hr, 20+ hours/week; your feedback will directly shape model safety.
Posted Apr 3, 2026
Join OpenTrain as a remote contractor to evaluate and red-team LLM outputs in French and English, focusing on safety, policy alignment, and adversarial case curation. This part-time role (20+ hrs/week) pays $24–$36/hr (typical $30/hr) and requires hands-on LLM red-teaming experience.
Posted Apr 3, 2026
Review and revise AI-generated French responses as a remote hourly contractor, rating outputs and producing corrected model answers; BA in linguistics/translation or a related field is required. Paid $16–$26.50/hr (typical $24/hr); worldwide and fully remote.
Posted Apr 3, 2026
Remote contractor role evaluating AI-generated content in English and Spanish; annotate safety, reasoning, and edge cases while red-teaming to detect risky outputs. Requires near-native Spanish, C1+ English, 5+ years in trust & safety or related fields, and LLM red-teaming experience.
Posted Apr 3, 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.
