Looking for remote AI training or data labeling work open to applicants located in Ukraine? These roles can involve preparing and reviewing examples for AI systems, such as labeling data, evaluating outputs, or handling language-based tasks. OpenTrain is the hiring organization for roles presented on OpenTrain. Candidates apply through OpenTrain, which may place or refer successful candidates to the client whose project they will support.
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
Capture and annotate gameplay from top-tier AAA games while helping shape the data used to train AI systems. This remote, part-time contractor role offers flexible work at $10–$15 per hour for contributors worldwide.
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
OpenTrain AI seeks a Spanish-language data annotation expert to label and validate Spanish text with linguistic precision. Remote, contract, part-time role (20+ hrs/week) for contributors with native/near-native Spanish and experience in annotation or linguistic QA.
Posted Jul 24, 2026
Join OpenTrain to record and transcribe Catalan speech from anywhere in Spain, part-time. Help build high-quality Catalan audio datasets, work under flexible hours, and earn $14–17/hr (typical $15/hr) as a contractor.
Posted Jul 23, 2026
Join OpenTrain to create and validate parametric FreeCAD models used to train AI—build libraries of mechanical parts and apply GD&T standards while working 20+ hours/week as a contractor paid $40–$100/hr. Intermediate CAD and mechanical design experience required.
Posted Jul 23, 2026
Evaluate how AI models solve complex software engineering problems by designing reproducible reinforcement learning environments, verification systems, and coding tasks. Remote, part-time contractor work pays $50–$100 per hour for less than 20 hours weekly.
Posted Jul 23, 2026
Annotate images using CVAT and the Segment Anything tool to create polygon outlines for individual objects; entry-level, remote contract work paying $4–$6/hr (typical $5/hr). Start with a short trial and earn more work by meeting speed and accuracy goals.
Posted Jul 22, 2026
Short contract for a bilingual (German/English) reviewer to label and create analytical text scenarios that improve LLM reasoning. One-week, 40 hrs/week remote role with required daily overlap to UTC-8; immediate start.
Posted Jul 22, 2026
Join OpenTrain AI to review, label, and evaluate text that helps fine-tune large language models; this remote, short-term contract requires English and Spanish fluency, strong analytical judgment, and attention to annotation quality.
Posted Jul 22, 2026
Join OpenTrain as a remote Hebrew Language Expert translating, localizing, and QAing Hebrew text for AI training. Contract, part-time role (20+ hrs/week), paid hourly up to $30/hr; native or near-native Hebrew and professional English required.
Posted Jul 22, 2026
Build reproducible reinforcement learning environments that test how AI systems solve real-world coding problems. This remote contractor role offers flexible work of approximately 15 hours per week at $50–$100 per hour.
Posted Jul 22, 2026
Join OpenTrain as a part-time Chinese Voice Coach to evaluate learner recordings, deliver targeted pronunciation feedback, and create lesson materials — remote work under 20 hrs/week with pay up to $65/hr. Native Mandarin or Cantonese speakers with voice-coaching experience encouraged to apply.
Posted Jul 22, 2026
Join OpenTrain to build and evaluate RL training environments that teach AI systems how to operate cloud infrastructure. Remote contractor role, worldwide, 20+ hrs/week (see schedule), paying $60–$130/hr with estimated project earnings of $9,600–$20,800.
Posted Jul 22, 2026
Join OpenTrain to test an Android mobile app: run supplied test cases, find UI/functional bugs, capture screenshots, and submit clear reproduction steps. Fixed-price contract of $130 for part-time remote work under 20 hours/week; entry-level testers welcome.
Posted Jul 21, 2026
Join OpenTrain AI to design rigorous, reproducible scientific-reasoning datasets that evaluate and improve LLMs. 8-week remote contractor role at 20+ hrs/week requiring 3+ years of physics experience and strong quantitative modeling skills.
Posted Jul 21, 2026
Join OpenTrain AI to QA multi-channel, unscripted US English audio and human-verified transcripts—checking fidelity, word-level timestamps, speaker IDs, metadata, and safety. Entry-level contractor role, 20+ hours/week, fully remote and worldwide.
Posted Jul 21, 2026
Join OpenTrain as a Medicinal Chemistry Review Specialist to evaluate and improve medicinal-chemistry datasets used to train advanced AI — contract, part-time, remote, 20+ hrs/week at $60–$80/hr. Provide expert reviews of structures, reactions, SARs, and experimental design.
Posted Jul 21, 2026
Apply advanced neuroscience expertise to annotate, review, and author neuroscience research, case studies, and scenario-based materials used to train generative AI — remote contract, part-time (20+ hrs/week), $60–$80/hr. Prior AI training experience not required.
Posted Jul 21, 2026
Apply your biochemistry expertise to annotate, validate, and refine biochemical datasets and model outputs for life-sciences AI; remote, 20+ hrs/week contract at $60–$80/hr. Join OpenTrain to shape how AI systems learn from scientific data.
Posted Jul 21, 2026
OpenTrain AI seeks an advanced-degree molecular biologist to review protocols, create annotations, and evaluate AI-generated scientific outputs. This remote, contract role is 20+ hours/week and pays $60–$80/hr for high-quality, evidence-based work.
Posted Jul 21, 2026
Join OpenTrain as a Pharmacology AI Training Expert helping train and evaluate AI responses about pharmacokinetics, pharmacodynamics, drug interactions, and therapeutic use. Contract role, 20+ hrs/week, paid $60–$80/hr for experienced PharmD/PhD/MD candidates.
Posted Jul 21, 2026
Join OpenTrain as a Human Data Manager to design and run annotation and data workflows, track KPIs, and improve dataset quality for AI training. Part-time contractor role, remote, paying $40–$60/hr with flexible hours (20+ hrs/week).
Posted Jul 21, 2026
Join OpenTrain AI as an Immunology AI Training Expert to evaluate and improve AI-generated immunology content, design datasets and case studies, and help shape scientifically accurate model outputs. Part-time contractor role (20+ hrs/week) paying $60–$80/hour, remote and worldwide.
Posted Jul 21, 2026
OpenTrain is hiring a remote contractor to review and produce production-ready parametric 3D CAD models, engineering drawings, and technical documentation. Part-time, 20+ hours/week; pay range $40–$100 USD/hr (posted rate $100/hr).
Posted Jul 21, 2026
Design realistic cloud infrastructure tasks and reproducible environments to train next-generation AI systems. Remote contractor role (20+ hrs/week), $40–$100/hr, requires senior hands-on platform experience in cloud, SRE, or DevOps.
Posted Jul 21, 2026
Join OpenTrain as an RL Environment Developer building reproducible reinforcement-learning environments that test AI models on complex software engineering workflows; contract, remote, 20+ hrs/week, $50–$150/hr based on experience.
Posted Jul 20, 2026
Contractor role designing rigorous scientific-reasoning evaluation datasets for advanced AI models; requires 3+ years of physics experience and 20+ hours/week. Work remotely for OpenTrain AI to author multi-step tasks, reference solutions, and scoring rubrics for model assessment.
Posted Jul 20, 2026
Record high-quality Korean voice-overs for AI speech training in a flexible, remote contractor role requiring a professional home studio and at least 20 hours/week. Ideal for voice actors with strong vocal control, a demo reel, and experience following direction.
Posted Jul 20, 2026
AI training and data labeling work helps prepare and review the examples used by artificial-intelligence systems. Depending on the role, tasks 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. For applicants located in Ukraine, the individual posting determines the exact assignment and eligibility.
OpenTrain is the hiring organization for these public roles, and candidates apply through OpenTrain. After a successful application, OpenTrain may place or refer the candidate to the client whose project they will support. Each individual posting provides the authoritative information for that opportunity, so review it carefully before deciding whether to apply.
