Looking for remote AI training or data labeling work you can apply for from Czechia? OpenTrain is the hiring organization for these roles, and candidates apply through OpenTrain. OpenTrain may place or refer successful candidates to the client whose project they will support.
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 part-time contractor to design reinforcement-learning code environments and expert reference solutions that teach AI to code, debug, refactor, and optimize — paid $50–$150/hr. Remote role with flexible hours; apply with a strong GitHub/GitLab record.
Posted Jul 29, 2026
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
Review and compare AI-generated responses for professional users, assessing personalization, relevance, accuracy, and helpfulness. This remote contractor role offers flexible part-time work for native-level speakers of German, Japanese, Korean, French, or English.
Posted Jul 25, 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
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
AI training and data labeling work helps prepare and review examples used by artificial-intelligence systems. Depending on the individual 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. A remote listing that accepts applicants located in Czechia may focus on one or more of these activities, so read each posting to understand its specific scope.
OpenTrain is the hiring organization for the public roles available through OpenTrain. Candidates apply through OpenTrain, and successful candidates may be placed or referred to the client whose project they will support. Because each project has its own requirements, the individual live posting is the source of truth for eligibility, qualifications, hours, pay, and other role-specific details.
