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.
OpenTrain AI seeks a native Telugu audio recording expert to produce high-quality scripted and unscripted recordings for language model training. Remote, contractor role (20+ hrs/week) paying $10–$30/hour — candidates must have native fluency and 3+ years of professional audio experience.
Posted Jul 30, 2026
Join OpenTrain as an expert AI Safety Red Teaming Specialist to probe conversational models for jailbreaks, prompt injections, and misuse; contractor, 20+ hrs/week, $48–$62/hr, remote, requires native English and Norwegian fluency.
Posted Jul 30, 2026
OpenTrain is hiring an expert AI Safety Red Team Specialist to perform text-based adversarial testing of conversational models (20+ hrs/week). Earn $48–$62/hr while finding jailbreaks, prompt injections, and systemic failure cases; native English and Finnish required.
Posted Jul 30, 2026
Join OpenTrain to red team conversational AI—find jailbreaks, prompt injections, and multi-turn manipulation, and produce reproducible vulnerability reports; remote, contract, 20+ hrs/week, $48–$62/hr. Native English and Danish required.
Posted Jul 30, 2026
Probe conversational AI for jailbreaks, prompt injections, and misuse as a remote AI Safety Red Team Specialist for OpenTrain. Contractor, part-time role (20+ hrs/week) paying $24–$35/hr; native English and Thai required.
Posted Jul 30, 2026
Join OpenTrain as an AI Safety Red Team Expert to probe conversational AI with adversarial prompts, jailbreaks, and structured red‑team methods. Remote, contract, 20+ hrs/week, pay $29–$45/hr; native English and Portuguese required.
Posted Jul 30, 2026
Join OpenTrain AI to red-team conversational models—finding jailbreaks, prompt injections, bias, and misuse—while producing reproducible attack cases and risk reports. Contract, part-time role (20+ hrs/week) paying USD 17–25/hr; native English and Indonesian required.
Posted Jul 30, 2026
Join OpenTrain to perform adversarial, text-based red teaming on conversational AI—find jailbreaks, annotate failures, and produce reproducible attack cases. Remote contractor role paying $17–$25/hr that requires native English and Vietnamese and a background in red teaming or cybersecurity.
Posted Jul 30, 2026
Join OpenTrain AI as an expert red teamer probing conversational models for jailbreaks, prompt injection, bias exploitation, and multi-turn manipulation; remote contractor role, 20+ hrs/week, $48–$62/hr, native English and Dutch required.
Posted Jul 30, 2026
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
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 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
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
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 AI to review and annotate technical materials science documents, evaluate AI-generated engineering content, and create domain-specific training scenarios — part-time, remote, and paid $80–$130/hr for ~20+ hours/week.
Posted Jul 29, 2026
Join OpenTrain as an Aerodynamics Expert to review, summarize, and rate advanced aerodynamic and CFD documentation for AI training projects; remote contractor work, 20+ hours/week, $80–$130/hr. Help turn engineering results into high-quality training data for next-generation models.
Posted Jul 29, 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.
