Looking for remote AI training or data labeling work as an applicant located in China? OpenTrain is the hiring organization for roles posted on OpenTrain, and candidates apply through OpenTrain. OpenTrain may place or refer successful candidates to the client whose project they will support. These opportunities can support AI systems through tasks such as reviewing examples, labeling data, evaluating responses, transcribing content, or translating text. Eligibility can change by role, so review each live posting carefully.
Create high-fidelity Brazilian Portuguese recordings that help train next-generation AI systems. This remote contractor role pays $20–$40 per hour and offers flexible work of 20+ hours per week.
Posted Aug 3, 2026
Apply advanced quantum optics expertise to benchmark AI systems and evaluate research-grade technical analyses. This remote contractor project offers global flexibility, approximately 10 hours per week, and $80–$160 per hour.
Posted Aug 2, 2026
Apply advanced AdS/CFT and mathematical physics expertise to review AI-generated solutions to research-level problems. This remote contractor engagement offers 10 hours per week for 8–10 weeks at $80–$160 per hour.
Posted Aug 2, 2026
Apply advanced condensed matter magnetism expertise to AI training involving magnetic structures, neutron scattering, magnetic space groups, and magneto-optic signatures. Remote contractor work runs about 8–10 weeks at approximately 10 hours per week.
Posted Aug 2, 2026
Apply advanced condensed matter and quantum information expertise to evaluate AI systems through exact diagonalization, symmetry methods, and quantum many-body benchmark analysis. Remote, part-time contract at $80–$160 per hour.
Posted Aug 2, 2026
Apply advanced statistical physics and quantum information expertise to evaluate AI-generated solutions, interpret simulations, and adjudicate technical research problems. Remote contract work requires about 10 hours weekly for 8–10 weeks at $80–$160 per hour.
Posted Aug 2, 2026
Apply your expertise in atomic, molecular, and optical physics to evaluate AI-generated reasoning, atomic-structure calculations, and spectroscopy analysis. Remote contractor work is worldwide, part-time, and pays $80–$160 per hour.
Posted Aug 2, 2026
Apply advanced chemistry expertise to help train and evaluate next-generation AI systems. This fully remote contract offers flexible part-time work worldwide at $70–$90 USD per hour, with 20+ hours per week.
Posted Aug 2, 2026
Collect synchronized gameplay video and telemetry while testing selected PC titles for bugs, anomalies, and data quality. This remote contractor role offers flexible part-time work at $10–$14 per hour for experienced PC gamers.
Posted Aug 2, 2026
Create research questions, answers, and benchmarking materials that help improve advanced language models. This remote contract offers flexible part-time work at $50–$60 per hour for strong researchers and communicators with an Apple Silicon Mac.
Posted Aug 2, 2026
OpenTrain AI is hiring a senior software engineer to design production-like coding benchmarks and safety tests for frontier coding agents. Contractor role: remote, 20+ hrs/week (min 4 hrs/day), 4–8 week assignment; Python required and 8+ years' experience.
Posted Aug 1, 2026
Join OpenTrain to evaluate Spanish-language AI responses for real small-business scenarios: craft prompts, run short chatbot conversations, and rate outputs for clarity, usefulness, and accuracy. Part-time contractor role (20+ hrs/week), fully remote and worldwide.
Posted Aug 1, 2026
Use your US legal expertise to help train and evaluate AI through nuanced research, drafting, document review, and quality assurance. This remote contract role offers flexible part-time work at $140–$400 per hour.
Posted Aug 1, 2026
Probe conversational AI models and agents for jailbreaks, prompt injections, bias, and other safety failures. This expert, remote contract role offers flexible part-time work at $48–$62 per hour for fluent English and Swedish speakers.
Posted Jul 31, 2026
Record high‑quality Mandarin audio for AI training on a flexible part‑time contract (20+ hrs/week). Native Mandarin speakers with professional studio experience and clean recording setups can earn $20–$40/hr for a 1–3 month project.
Posted Jul 30, 2026
Record studio-quality German voice samples for AI training on a flexible, part-time contractor schedule; paid $20–$40 USD/hour and requiring native German fluency and professional recording experience.
Posted Jul 30, 2026
Record high-quality native Italian audio for AI training projects on a flexible, part-time contract paying $20–$40/hr. Join OpenTrain AI to contribute recordings, follow scripted prompts, and help shape how Italian-speaking systems understand natural speech.
Posted Jul 30, 2026
Join OpenTrain as an AI Model Reviewer to evaluate and generate high-quality examples, prompts, and rationales that improve model reasoning — remote, contractor work at $100–$180/hr for 20+ hours/week. Ideal for experts in law, education, engineering, science, or writing.
Posted Jul 30, 2026
Join OpenTrain AI as a Semiconductor Devices & Microelectronics Expert to create and review technical explanations that train generative AI models; remote contractor role paying $66–$130/hr for 20+ hours/week. Use your device-physics and microfabrication expertise to rate and generate text for AI tr
Posted Jul 30, 2026
Join OpenTrain to evaluate and improve AI-generated mechanical engineering content across mechanics, thermodynamics, fluids, heat transfer, vibrations, and manufacturing; part-time contractor role at $80–$100/hr, 20+ hours/week. Provide detailed technical judgments and written rationales to train ne
Posted Jul 30, 2026
OpenTrain AI seeks experienced electrical engineers to evaluate and rate AI-generated circuit designs and technical answers across analog, digital, mixed-signal, power, and RF. Remote contractor role, 20+ hrs/week, $80–$130/hr to help shape high-quality technical AI reasoning.
Posted Jul 30, 2026
Apply your mechanical design and CAD expertise to train and evaluate AI models for engineering workflows. Part-time remote contractor work (under 20 hrs/week) paying $66–$130/hr, no prior AI experience required.
Posted Jul 30, 2026
Record and edit high-quality Thai speech for AI training as a part-time contractor — earn $10–$30/hr while working 20+ hours/week remotely. Open to native or near-native Thai speakers with professional recording gear and editing experience.
Posted Jul 30, 2026
Record high-quality Tamil audio for AI training in a remote, part-time contract role—paid $10–$30/hr with a typical commitment of 20+ hours/week. Use professional equipment to deliver clean, natural spoken samples and perform quality checks.
Posted Jul 30, 2026
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
AI training is human work that helps prepare and review examples used by artificial-intelligence systems. Depending on the individual role, applicants may label images or video, transcribe or record audio, write or rate model responses, evaluate search results, translate text, review code, or apply subject-matter knowledge. For applicants located in China, only postings that explicitly accept applications from China match this search intent. The individual posting defines the actual responsibilities.
OpenTrain is the hiring organization for roles posted on OpenTrain. Candidates apply through OpenTrain, and OpenTrain may place or refer successful candidates to the client whose project they will support. Each posting is the authoritative source for eligibility, qualifications, responsibilities, hours, pay, and other client-specific requirements. A role that accepts applicants located in China may have different requirements from another posting, so read the individual listing before deciding whether to apply.
