Looking for AI-training work while located in Vietnam? OpenTrain is the hiring organization, candidates apply through OpenTrain, and OpenTrain may place or refer successful candidates to the client whose project they will support. AI-training work supports machine-learning systems and can include tasks such as labeling images or video, transcribing or reviewing audio, rating model outputs, translating or checking translations, evaluating search results, or using subject-matter knowledge to judge content, inspect each live posting for the exact duties and requirements.
Review AI-generated market research outputs and produce gold-standard briefs, surveys, and insight syntheses in a remote, hourly contractor role. Part-time (20+ hrs/week), US$30–65/hr; requires 5+ years in market research and C1 English.
Posted Jul 9, 2026
Join OpenTrain as a Legal Research AI Evaluation SME to review and rate AI-generated legal research, create gold-standard memos, and provide precise written feedback; hourly contract work (20+ hrs/week), remote across multiple countries with advertised rates up to $110/hr.
Posted Jul 9, 2026
High-paying remote contract role reviewing AI-generated legal analyses: $115/hr, 20+ hrs/week. Use your law training to evaluate, rank, fact-check, and write clear feedback that improves AI legal reasoning.
Posted Jul 9, 2026
Join OpenTrain AI to evaluate and improve AI-generated Kotlin code and explanations. Work remotely as a contractor writing expert corrections, model solutions, and high-quality feedback to shape LLM coding behavior.
Posted Jul 9, 2026
Review and improve AI-generated JavaScript code, write clear technical explanations, and rate competing model outputs for AI training; remote contract, part-time (~20+ hrs/week) with pay tiers up to $60/hr. Requires 2+ years production JavaScript experience, strong writing, and familiarity with Reac
Posted Jul 9, 2026
Join OpenTrain AI as a Senior Java AI Code Reviewer to evaluate and improve AI-generated Java code, write reference implementations, and produce structured feedback. Remote contractor role, $55/hr, 20+ hours/week; applicants must be fluent in English and located in the listed countries.
Posted Jul 9, 2026
Join OpenTrain as an Investment Banking SME to review AI-generated finance outputs and author gold-standard valuation and memo content; this remote contract role requires 5+ years of deal-side experience, strong accounting and DCF skills, and is paid up to $110/hr for 20+ hours/week.
Posted Jul 9, 2026
Join OpenTrain as a remote contract Intellectual Property AI Training Expert to evaluate AI-generated legal responses, create model answers, and rate outputs; 20+ hrs/week, $50–$140/hr. Requires JD/LLB, active bar membership or eligibility, and 5+ years IP practice.
Posted Jul 9, 2026
Join OpenTrain as an Insurance AI Evaluation Specialist to review AI-generated insurance responses, create gold-standard outputs, and provide expert feedback; contractor role requiring 5+ years' insurance experience, 20+ hrs/week, $40–$70/hr, open to candidates in listed countries.
Posted Jul 9, 2026
Review and improve AI-generated frontend code by writing reference implementations, explaining reasoning, and ranking model responses. Expert HTML/CSS, accessibility, and cross-browser knowledge required; 20+ hrs/week, $70/hr, hiring across multiple countries.
Posted Jul 9, 2026
Join OpenTrain to review and create brand strategy outputs that teach AI better positioning, messaging, and go-to-market reasoning. Expert-level contract role, remote, 20+ hours/week, USD $35–85/hr; C1 English and 5+ years brand strategy experience required.
Posted Jul 9, 2026
Evaluate AI-generated Angular code and write model solutions as an expert Angular engineer. Remote contractor role, expert level (4+ years), ~20+ hrs/week at $90/hr — English required.
Posted Jul 9, 2026
Join OpenTrain as a Fintech & Crypto SME to review and rate AI-generated fintech, payments, and blockchain responses; create gold-standard explanations and model solutions. Remote, contractor role — 20+ hrs/week, $35–$100/hr, English C1 required.
Posted Jul 8, 2026
Join OpenTrain to review and create expert financial analysis for AI systems, providing gold-standard models, critiques, and prompts. Remote, contractor role for experienced finance professionals working 20+ hours/week at $50–$85/hr.
Posted Jul 8, 2026
Remote contractor role for licensed dentists to review and author dental AI content, evaluate clinical reasoning, and create gold-standard answers; $50–$90/hr, 20+ hours/week. Requires DDS/DMD (or equivalent), active licensure/eligibility, strong clinical judgment and C1 English.
Posted Jul 8, 2026
Join OpenTrain to review and author compliance and regulatory AI outputs—rank model responses, fact-check regulatory claims, and create gold-standard policies. Part-time contractor role (20+ hrs/week), remote, $40–$95/hr; requires 5+ years in compliance and C1 English.
Posted Jul 8, 2026
Join OpenTrain as a remote Contract Review Expert to assess, redline, and improve AI-generated contract analyses and drafting at $40–$100/hr (20+ hrs/week). Provide precise legal feedback, compare model outputs, and help make AI contract assistance safer and more reliable.
Posted Jul 8, 2026
Join OpenTrain as a remote Go AI Training Engineer to review and write Go solutions, evaluate AI-generated code and explanations, and help train better models — part-time contract, 20+ hrs/week, up to $60/hr, hiring across select countries.
Posted Jul 8, 2026
Join OpenTrain to evaluate AI-generated full-stack code and write reference implementations for Node.js and React systems. Remote contractor work (20+ hrs/week) with competitive hourly pay tiers up to $100/hr depending on country and 850 openings.
Posted Jul 8, 2026
Contract remote role reviewing and improving AI-generated electrical engineering solutions; $40–$100/hr, 20+ hours/week. Must have hands-on EE expertise, strong written communication, and prior exposure to technical model evaluation.
Posted Jul 8, 2026
Join OpenTrain as a remote AI Data Scientist to review AI-generated analysis and code, write step-by-step reference solutions, and rate model outputs. Part-time contractor work (20+ hrs/week) with hourly pay up to $100 and hiring across many countries.
Posted Jul 8, 2026
Review and rate AI-generated clinical research and biomedical content, create gold‑standard answers, and provide expert written feedback on study design, statistics, and safety; remote contractor role (20+ hrs/week) paying $40–$70 USD/hr and requiring 5+ years clinical research experience.
Posted Jul 8, 2026
Join OpenTrain to evaluate and improve AI-generated civil engineering outputs, providing technical feedback on calculations, assumptions, safety, and professional judgment. Remote contractor role, 20+ hours/week, paid $45–$100/hr; English fluency and 4+ years civil engineering experience required.
Posted Jul 8, 2026
OpenTrain AI seeks an expert Chemistry AI Training Reviewer to evaluate and improve AI-generated chemistry answers; MS/PhD required. Remote, contract role at $70/hr for 20+ hours/week in listed countries.
Posted Jul 8, 2026
Review and refine AI-generated chemical engineering content—assess technical accuracy, safety, assumptions, and calculations. Remote contract, flexible schedule with expected 20+ hours/week and competitive hourly pay ($40–$100/hr).
Posted Jul 8, 2026
OpenTrain is hiring an expert C++ engineer to review AI-generated C++ code, produce reference implementations, and write clear step-by-step technical explanations. Contractor role: $65/hour, 20+ hours/week, remote in the countries listed below.
Posted Jul 8, 2026
Join OpenTrain as a remote C# AI Training Engineer to review and improve AI-generated C#/.NET code and explanations. This contractor role pays $65/hour, requires strong C#/.NET expertise and clear English writing, and asks for 20+ hours/week.
Posted Jul 8, 2026
Join OpenTrain as a remote Accounting SME to review AI-generated accounting outputs, write gold-standard solutions, and rate model responses; hourly pay USD 35–65/hr, 20+ hours/week, hiring across multiple countries.
Posted Jul 8, 2026
Use your JD and 5+ years of legal practice to evaluate and craft AI-generated legal answers, memos, and policies for OpenTrain AI. Remote contractor work, 20+ hours/week, hourly pay USD $40–$120.
Posted Jul 8, 2026
Review AI-generated astronomy and space-science responses for scientific accuracy, assumptions, units, and uncertainty; remote contract, 20+ hrs/week, with pay from $40–$100/hr depending on location and qualification.
Posted Jul 8, 2026
Work open to applicants located in Vietnam can involve a range of human-in-the-loop activities used to teach, test, and refine AI. Examples include annotating visual data, transcribing or reviewing audio, writing or rating model responses, evaluating search results, translating text, and applying domain knowledge to assess outputs. Each live posting describes the specific task type, any language requirements, and the detailed instructions for that role.
OpenTrain is the hiring organization for roles that accept applicants located in Vietnam; candidates apply through OpenTrain, and OpenTrain may place or refer successful candidates to the client whose project they will support. The individual live posting is the only source of truth for eligibility, responsibilities, qualifications, hours, pay, and any client-specific rules.
