Looking for AI-training or data-labeling work while located in South Korea? OpenTrain is the hiring organization, candidates apply through OpenTrain, and OpenTrain may place or refer successful candidates to the client whose project they support. Roles that explicitly accept applicants located in South Korea can involve a range of human-review tasks used to improve AI systems; review each live posting for the full eligibility and task list.
Join OpenTrain to evaluate large language model outputs, create challenging prompts, and deliver recorded verbal feedback; remote, contract role (20+ hrs/week) paying $20–$30/hr. Entry-level friendly for strong American English speakers with LLM experience.
Posted Jul 15, 2026
Join OpenTrain as a remote Economics Expert to create benchmark-quality economics responses, review advanced solutions, and document rationales for AI training—PhD required; $80–90/hr, 20+ hours/week, contract part-time.
Posted Jul 15, 2026
Join OpenTrain as a contractor producing authoritative computer‑science answers, creating golden responses, and reviewing technical solutions to improve AI. PhD required; 20+ hours/week; $80–$90/hr; fully remote and open worldwide (English).
Posted Jul 15, 2026
Bring your PhD in biology to improve AI systems: review and refine biology prompts, scenarios, and model outputs on a part-time, remote contract at $80–90/hr. Work <20 hrs/week on text-based evaluation and generation tasks with OpenTrain AI.
Posted Jul 15, 2026
Join OpenTrain as a remote Physics AI Training Specialist (contract, <20 hrs/week) to create and review advanced physics content that improves AI reasoning; requires a PhD in Physics and pays $80–$90/hr. Work focuses on text-based generation and evaluation tasks.
Posted Jul 15, 2026
Join OpenTrain as a contracted Math Expert (PhD) creating and refining precise model answers for advanced undergraduate and graduate math prompts. Part-time remote work, 20+ hours/week at $80–$90/hr; English required.
Posted Jul 15, 2026
Use your PhD-level statistics expertise to write, review, and explain model responses that teach AI systems; part-time remote contract paying $90–$120/hr for an estimated 1–3 month project with flexible hours.
Posted Jul 15, 2026
Join OpenTrain as a remote Chemistry AI Training Reviewer to write and rate advanced chemistry responses, create golden-reference answers, and improve model behavior — part-time contract paying $80–$90/hr for an estimated 1–3 month engagement.
Posted Jul 15, 2026
Record, transcribe, and rate German voice interactions for a next‑generation AI assistant on your Mac; $38/hr, 20+ hours/week, fully remote and contractor-friendly. Ideal for native German speakers with strong transcription attention to detail.
Posted Jul 14, 2026
Remote contract role transcribing and rating French voice interactions for a next‑generation AI assistant at $38/hr; requires an Apple Silicon Mac and native/near‑native French. Immediate start; typical 20+ hrs/week with a default 40‑hour commitment over a 3‑week timeline.
Posted Jul 14, 2026
Design grading rubrics and score AI and human consulting deliverables with evidence-based written justifications. Remote contractor role, 20+ hours/week, pay $150–$220/hr working for OpenTrain AI on evaluation and quality tasks.
Posted Jul 14, 2026
Create graduate-level multiple-choice questions and exam-quality rationales, review AI-generated mechanical engineering content, and help ensure technical accuracy; contract, remote role paying $60–$130/hr for ~20+ hours/week.
Posted Jul 14, 2026
Remote, contractor role recording, annotating and evaluating German speech to improve AI pronunciation and language understanding; part-time (20+ hrs/week) and paid $30–$65/hr. Native German fluency and phonetics awareness required.
Posted Jul 14, 2026
Remote, part-time contract role writing and reviewing graduate-level electrical engineering exam questions and model outputs; flexible under 20 hrs/week, paid $40–$130/hr. Ideal for PhD or advanced master's holders with university teaching and assessment experience.
Posted Jul 14, 2026
Provide authoritative adjudication and written evaluations on contested high-energy and mathematical physics arguments to train next-generation AI. Part-time remote contractor role (under 20 hrs/week), $80–$160/hr, OpenTrain AI hiring.
Posted Jul 14, 2026
Join OpenTrain as a French Voice Coach delivering personalized pronunciation, diction, and fluency coaching in French; contractor, part-time role paying $30–$65/hr. Work remotely under 20 hours/week designing exercises, giving actionable feedback, and keeping progress records.
Posted Jul 14, 2026
Join OpenTrain as a part-time Hindi Voice Coach helping learners improve pronunciation, intonation, and conversational fluency through remote coaching and audio review. Flexible contractor role (under 20 hrs/week), paid $30–$65/hr, open worldwide to native or near-native Hindi speakers.
Posted Jul 14, 2026
Rate and annotate AI‑generated German-language music for up to 6 months, using music-production and audio-engineering terminology. Remote part‑time contract, 20+ hours/week, $32.48–$58.46/hr; native German and strong English required.
Posted Jul 13, 2026
Review and annotate Vietnamese AI-generated music—judge lyrics, vocal quality, musicality, creativity, and production, and tag songs with genre, structure, and performance features. Remote contractor role for experienced music producers or audio engineers, 20+ hrs/week, USD $13.01–$23.43/hr; Vietnam
Posted Jul 13, 2026
Evaluate AI-generated Thai music—lyrics, vocals, and full mixes—on a flexible part-time contract. Intermediate role (20+ hrs/week) paying $13.01–$23.43/hr; native or near-native Thai and English required.
Posted Jul 13, 2026
Join OpenTrain as an AI Safety Red Teamer testing conversational models with jailbreaks, prompt injections, and adversarial attacks. This contract, remote role pays $20–$22/hr, requires native English and Odia, and expects 20+ hours/week.
Posted Jul 13, 2026
Join OpenTrain AI to evaluate Odia-language model responses and write clear English evaluations that improve LLM behavior. Part-time contractor role (20+ hrs/week), $15–$20/hr — native Odia fluency and strong English writing required.
Posted Jul 13, 2026
Join OpenTrain AI to evaluate Telugu AI-generated responses and write clear English assessment notes that improve model behavior; remote contract, 20+ hrs/week, $15–$20/hr. Ideal for native Telugu speakers with strong English writing and LLM experience.
Posted Jul 13, 2026
Evaluate Urdu AI-generated responses for factual accuracy, clarity, tone, and reasoning, and write clear English analyses that guide model improvement. Remote contractor role, 20+ hours/week, $15–$20 per hour.
Posted Jul 13, 2026
Join OpenTrain as a remote Bengali AI Response Evaluator to review and rate Bengali LLM outputs, provide detailed English feedback, and help improve model behavior; part-time contract work, flexible hours, $15–$20/hr.
Posted Jul 13, 2026
Join OpenTrain to design rubrics and score AI-generated and human marketing deliverables—creative briefs, campaign concepts, brand frameworks, ad copy and presentations—remotely as a contractor. Flexible part-time work paying $80–$150/hr with a default 40 hr/week commitment.
Posted Jul 13, 2026
Evaluate AI-generated and human accounting deliverables—score reconciliations, financial statements, disclosures, workpapers and technical memos with clear, evidence-based justifications. Expert US GAAP and audit experience required; contract, part-time, remote, 20+ hrs/week, $130–$160/hr.
Posted Jul 13, 2026
Annotate robotic surgery video in Supervisely for a part-time, fully remote contractor role applying segmentation, bounding boxes, keypoints, and object tracking; strong attention to detail and medical familiarity required. Pay range $15–$32/hr (hourly rate listed $22/hr); expect ~20+ hrs/week.
Posted Jul 12, 2026
Join OpenTrain AI as a part-time contractor building reinforcement-learning environments that teach models to fix, refactor, and optimize real code; flexible remote work up to $150/hr, under 20 hours/week.
Posted Jul 12, 2026
Join OpenTrain as a remote Data Annotation Generalist working 20+ hours/week on English text classification projects; entry-level contributors with strong attention to detail and communication skills are encouraged to apply for $30–$80/hr (USD).
Posted Jul 11, 2026
Work for applicants located in South Korea falls under AI training and data-labeling activities used to build and refine machine-learning systems. Tasks listed on postings can include annotating images or video, transcribing or annotating audio, translating or verifying text, writing or rating model responses, evaluating search relevance, or applying subject-matter knowledge to review content. The individual posting defines the exact responsibilities, any language expectations, and the scope of work for that role.
All applications for these roles are submitted through OpenTrain. OpenTrain is the hiring organization for the roles presented on OpenTrain and may place or refer successful candidates to the client whose project they support. The individual live posting is the authoritative source for eligibility, qualifications, schedule, pay, hours, location rules, and any client-specific requirements.
