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.
Assess frontier AI coding agents by running realistic backend engineering tasks and reviewing model-generated code for correctness, maintainability, and performance. Remote contractor role paying $85/hr, 20+ hours/week, sprint-based work with typical tasks taking 2–3 hours.
Posted Jul 29, 2026
Evaluate frontier AI coding agents on real-world infrastructure tasks—cloud, Kubernetes, CI/CD, observability—and earn $85/hr as a part-time contractor (20+ hrs/wk). Ideal for DevOps/SRE professionals with hands-on cloud and AI-agent experience.
Posted Jul 29, 2026
Evaluate frontier AI coding agents by reviewing model-generated ETL pipelines, data warehouses, and distributed systems; contractor, 20+ hrs/week at $80/hr (USD). Ideal for data engineers with 2+ years' hands-on ETL and infrastructure experience.
Posted Jul 29, 2026
Join OpenTrain as a contractor reviewing model-generated ML code, MLOps, and LLM application workflows—apply engineering judgment to find bugs, edge cases, and performance issues. Part-time remote work at $85/hr, 20+ hours/week, open worldwide to experienced ML engineers.
Posted Jul 29, 2026
Join OpenTrain for a high‑engagement, short‑term Finance Sprint evaluating whether public‑finance workflows reflect real professional practice; remote, worldwide contract at $115–$150/hr for 20+ hours/week.
Posted Jul 29, 2026
Evaluate browser-based test workflows and confirm deterministic, reliable automation for AI-generated web applications. Part-time contractor role (20+ hrs/week), remote worldwide, $30–$60/hr — requires QA/SDET experience with Playwright, Cypress, Selenium.
Posted Jul 29, 2026
Freelance evaluator who creates prompts and rates AI chatbot answers for Hindi small-business scenarios, submitting transcripts and structured assessments; 20+ hours/week, remote, contract part-time. Work with up to five-turn conversations and business documents in Hindi.
Posted Jul 29, 2026
Join OpenTrain AI to evaluate and compare chatbot responses for real-world small business scenarios in an entry-level, project-based role. Work remotely 20+ hours/week creating prompts, running multi-turn conversations, and submitting structured RLHF-style evaluations.
Posted Jul 29, 2026
Evaluate and improve agentic coding models by reviewing agent trajectories, verifying outputs, and designing rubrics on a 5-week remote contract. Requires 5+ years of hands-on software experience and daily overlap with PST.
Posted Jul 29, 2026
Short-term remote contract for a bilingual French/English analyst to create, label, and evaluate analytical Q&A that improve large language models; part-time (20+ hrs/week) with requirements to overlap US hours and potential extension. Entry-level friendly for strong analytical writers.
Posted Jul 29, 2026
Expert contractor role to design and optimize GPU software for LLM training (CUDA/WebGPU/GLSL). Remote, 20+ hrs/week, $60–$85/hr; requires advanced GPU programming and strong C++ for host-side integrations.
Posted Jul 29, 2026
Join a focused Finance Sprint to evaluate whether AI training tasks reflect real-world real-estate underwriting, project finance, and infrastructure practice; remote contractor role at $150–$200/hr, 20+ hours/week for experienced finance professionals. Apply via OpenTrain to shape how AI understands
Posted Jul 29, 2026
Join OpenTrain to evaluate AI-generated and human-created data science work: design grading criteria, score technical deliverables, and write defensible evaluations. Remote, contract role for experienced data scientists with 20+ hours/week availability and $100–$150/hr pay.
Posted Jul 29, 2026
Manage operations for LLM browsing projects: track annotator performance in Google Sheets, review quality, and coordinate contributors. Remote contractor, 20+ hrs/week, $50–$60/hr.
Posted Jul 29, 2026
Join OpenTrain as an AI Video Annotator to review AI-generated video edits frame-by-frame, rate outputs, surface failure modes, and write concise reasoning notes; recurring remote batches pay $15–$20/hr for 20+ hours/week.
Posted Jul 29, 2026
Use your consulting experience to evaluate AI and human consulting deliverables for real-world projects. Remote, freelance role paying $100–$150/hr with a default 40-hour weekly commitment and flexible part-time options.
Posted Jul 29, 2026
OpenTrain AI seeks experienced, certified medical coders to assign CPT and ICD-10 codes to clinical records in a remote, high-volume contractor role paying $45–$65/hr. This short-term, production-focused assignment requires active CPC or CRC certification and strong U.S. documentation knowledge.
Posted Jul 29, 2026
Join OpenTrain as an ML Researcher Evaluation Specialist to assess frontier machine-learning researchers and their publication records for a high-priority pilot; part-time contractor role (20+ hrs/week), remote worldwide, paid $60–$100 USD/hr.
Posted Jul 29, 2026
OpenTrain AI seeks senior civil engineers to design scenario-based evaluation tasks and rubrics for AI used in infrastructure and construction; remote contractor role at $70–$80/hr, ~20+ hours/week. Use PE-level judgment across structural, geotech, water resources, transportation, and construction m
Posted Jul 29, 2026
Join OpenTrain to design evaluation scenarios and rubrics that test AI systems against enterprise mechanical engineering challenges; paid contract work at $70–$80/hr, 20+ hours/week, remote and worldwide. Ideal for engineers with hands-on product design and certification experience.
Posted Jul 29, 2026
Create and evaluate realistic business .xlsx/.docx/.pptx examples and provide side-by-side preference data to improve AI document behavior. Remote, contract role (20+ hrs/week) paying $20–60/hr; entry-level applicants with strong Excel/Office skills welcome.
Posted Jul 29, 2026
OpenTrain AI is hiring a remote Privacy Annotation Specialist to review legal documents for PII and confidential content, validate OCR outputs, and perform QA for AI-driven legal workflows; contract, part-time (20+ hrs/week), $105–$140/hr USD.
Posted Jul 29, 2026
Join OpenTrain AI to train next‑generation models by reviewing and annotating microbiology documents (RLHF and evaluation tasks). Remote, contract, 20+ hours/week; pay $70–$90/hr — ideal for candidates with a BSc+ in microbiology/biology and strong scientific communication.
Posted Jul 29, 2026
Join OpenTrain as a PII Document Review Specialist to classify, annotate, and redact sensitive information in documents; part-time contractor work (20+ hrs/week) with pay from $63–$119/hr (USD), remote and worldwide, English required.
Posted Jul 29, 2026
Join OpenTrain as a remote Materials Science AI Training Expert to review technical documents, write clear explanations of advanced materials concepts, and evaluate AI-generated materials engineering content. Part-time contractor role, 20+ hours/week, paid $80–$100/hr (USD).
Posted Jul 29, 2026
Join OpenTrain as an Aerodynamics Expert to review, evaluate, and summarize aerodynamic and CFD documents for AI training; remote contractor work at $80–$100/hr for 20+ hours/week. Use your aerospace or mechanical engineering knowledge and technical writing to shape next‑generation AI.
Posted Jul 29, 2026
Join OpenTrain to help train AI through high-quality Word and PDF review, formatting, and data extraction; remote, contractor work at 20+ hours/week with hourly pay between $20–$55 USD. Ideal for experienced document professionals comfortable with regulated materials and confidentiality.
Posted Jul 29, 2026
Join OpenTrain to design realistic business PowerPoint tasks, collaborate with LLMs to create and edit .pptx files, and evaluate model outputs; contract, remote work at $20–$60/hr with a 20+ hour/week commitment. Apply if you have advanced PowerPoint, Excel, and Word experience.
Posted Jul 29, 2026
Join OpenTrain as a Software Engineering AI Training Expert to design reinforcement-learning code environments and reference solutions that teach AI to write, debug, refactor, and optimize code; remote, part-time (10–15 hrs/wk), $50–$150/hr, worldwide, English required.
Posted Jul 29, 2026
Join OpenTrain AI to teach next-generation models practical analog and digital circuit design — remote, contract work at 20+ hrs/week with pay from $60–$120/hr. Contribute simulations, PCB reviews, hardware validation, and technical ratings in English.
Posted Jul 29, 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.
