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 to annotate biological documents and shape AI models in computational biology and medicinal chemistry. Part-time contract work (20+ hrs/week), remote worldwide, $90–$120/hr, focused on classification, entity NER, and evaluation tasks.
Posted Jul 28, 2026
Join OpenTrain as a remote Bioinformatics Scientist to curate and validate drug-discovery datasets, review AI-generated scientific outputs, and deliver written feedback that improves model behavior. Part-time contractor work (20+ hrs/week) paying $90–$120/hr USD depending on experience.
Posted Jul 28, 2026
Join OpenTrain as a remote PhD-level Physics Research and AI Evaluation Specialist—conduct physics research, create educational content, and evaluate AI-generated scientific responses. Part-time contractor role (20+ hrs/week) paying $70–$90/hr.
Posted Jul 28, 2026
Design and evaluate AI-powered enterprise workflows as a Senior Enterprise AI Productivity Specialist — 20+ hours/week, remote worldwide, contractor role paying $80–$150/hr. Build automations, integrations, adoption plans, and business-impact documentation.
Posted Jul 28, 2026
Join OpenTrain as a part-time contractor annotating audio and video for AI training (classification and transcription). Entry-level role, 20+ hours/week, paid USD $6–8/hr — help shape real AI data while working remotely.
Posted Jul 28, 2026
Join OpenTrain as a part-time, remote COBOL Code Analysis and AI Training Specialist and help train AI by interpreting and documenting legacy COBOL systems. Earn $90–$120/hr for 20+ hours/week while turning your COBOL domain knowledge into high-quality training data.
Posted Jul 28, 2026
Join OpenTrain to create AI training data from legacy COBOL codebases as a remote contractor; work 20+ hours/week at $90–$126/hr helping translate mainframe logic into clear documentation, test cases, and model-ready annotations.
Posted Jul 28, 2026
Join OpenTrain as a remote Data Annotator labeling video and audio for AI systems; part-time contract, 20+ hrs/week, $6–$10/hr. No prior AI experience required — attention to detail and strong English are what matter.
Posted Jul 28, 2026
Join OpenTrain AI as a remote Business Analyst to help fine-tune large language models by answering analytical questions, creating scenarios, and labeling text in English and Brazilian Portuguese. Entry-level, contractor role with flexible hours and clear quality targets.
Posted Jul 26, 2026
Evaluate AI-written business email replies for relevance, accuracy, personalization, and professionalism. Remote, entry-level contract work (20+ hrs/week) reviewing multiple model outputs and writing clear evaluation feedback to improve AI behavior.
Posted Jul 25, 2026
Assess AI-generated reproductions of published ML papers: read papers, inspect code/data/output artifacts, rank reproduction attempts, and provide clear written evaluations. Remote, contractor role for experienced ML researchers — 20+ hrs/week.
Posted Jul 25, 2026
Join OpenTrain as a remote Clinical Medicine AI Evaluation Physician to design and run clinical evaluations that test AI medical reasoning. Flexible contract work (20–30 hrs/week), 1-month engagement with possible extensions; licensed physicians only.
Posted Jul 25, 2026
OpenTrain AI is hiring an Egyptian Arabic voice actor to record and review conversational audio for AI training (20 hrs/week, 1–3 months) paying $30–$65/hr. Ideal for native-dialect performers with studio-quality recording setup and voice-acting experience.
Posted Jul 25, 2026
Record and transcribe Saudi Arabic audio remotely for OpenTrain—part-time, entry-level work with flexible hours and pay ranging $30–$65/hr. Use your phone or microphone to produce clear recordings and accurate transcriptions that help train voice AI.
Posted Jul 25, 2026
Join OpenTrain as a contractor to design adversarial red-team workflows, test SaaS/cloud environments, and evaluate security controls for AI training; remote, flexible, 20+ hrs/week, paid $60–$100/hr.
Posted Jul 25, 2026
Design, execute, and document realistic multi-step GitHub-centered engineering workflows for AI training. Remote contractor role, 20+ hrs/week, pay $14–$36 USD/hr; strong software-engineering experience and clear technical writing required.
Posted Jul 25, 2026
Remote contractor to design and document realistic product management and marketing workflows for AI training; 20+ hrs/week, pay $13–$36/hr. Requires hands-on PM or marketing experience, frequent Slack and Google or Microsoft 365 use, and strong process documentation skills.
Posted Jul 25, 2026
Join OpenTrain AI as a Workflow Annotator focused on finance data workflows—work remotely on flexible contracts (20+ hrs/week) and earn $14–$36/hr converting real FP&A and SQL-backed workflows into clear training data and model feedback.
Posted Jul 25, 2026
Design and solve multi-step physics problems and write clear step-by-step solutions that probe large language model reasoning. Fully remote contractor role (20+ hrs/week) requiring advanced physics knowledge, scientific Python skills, and a 3-week commitment with PST overlap.
Posted Jul 24, 2026
Remote contractor role evaluating personalization in a conversational AI using your own account data; work in Russian, 20+ hrs/week at $15/hr. Create multi-turn prompts, compare responses side-by-side, and write clear rationales while following strict data hygiene.
Posted Jul 24, 2026
Experienced private equity attorney to review and annotate complex transactional documents for AI training; remote contract, 20+ hrs/week, pay up to $130/hr. Help teach models by providing precise legal analysis, sample clauses, and risk assessments.
Posted Jul 24, 2026
Play top-tier AAA games to record, organize, and annotate gameplay video for AI training—remote, part-time contract work (20+ hrs/week) with pay up to $18/hr. Ideal for experienced players with a high-end gaming PC and strong attention to detail.
Posted Jul 24, 2026
Review BIM models and construction drawings using Revit and Navisworks to detect clashes, document root causes, and recommend technical fixes for AI training and model evaluation; remote contract, ~20+ hours/week.
Posted Jul 24, 2026
Contract role transcribing and analyzing Sherpa-language video: timestamped transcriptions, contextual translation, emotionality and semantic evaluation. Remote, part-time contractor work (20+ hrs/week); fluency in Sherpa and English required.
Posted Jul 24, 2026
Join OpenTrain as a Nepali bilingual linguistic reviewer to transcribe Nepali video content, add timestamps, and analyze tone, grammar, and idioms. This remote, part-time contractor role asks for strong Nepali/English skills and a regular weekly time commitment.
Posted Jul 24, 2026
Transcribe Albanian video, add precise timestamps, and annotate tone, intent, grammar, and idioms for AI training. Remote contractor role, 20+ hours/week; native/near-native Albanian and English required—entry-level friendly.
Posted Jul 24, 2026
Join OpenTrain as a Telugu Language Expert to review and localize Telugu content that helps train AI systems. Remote contract work with flexible hours — minimum 15 hrs/week, typical engagements 20+ hrs; no prior AI training experience required.
Posted Jul 24, 2026
Join OpenTrain AI as a part-time Nynorsk Language Review Specialist to edit, proofread, and evaluate Nynorsk content for translation and localization projects. Work remotely under flexible hours (less than 20 hrs/week) and help shape language quality across AI training tasks.
Posted Jul 24, 2026
Join OpenTrain as a remote Tamil Language Specialist to translate, transcribe, and localize documentation and training materials on a part-time contract basis. Contribute glossaries, style guidance, and linguistic insights while working under 20 hours/week.
Posted Jul 24, 2026
OpenTrain seeks a Bulgarian Language Review Specialist to review, translate, and QA Bulgarian–English documents for AI training projects; part-time remote (20+ hrs/week) with flexible hours and global applicants. Compensation is handled through OpenTrain project budgets.
Posted Jul 24, 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.
