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Remote AI training and data labeling jobs in Hong Kong

Looking for remote AI training or data labeling work open to applicants located in Hong Kong SAR China? These roles can support the preparation and review of examples used by artificial-intelligence systems, with the exact work defined in each posting. OpenTrain is the hiring organization for roles on OpenTrain. Candidates apply through OpenTrain, and OpenTrain may place or refer successful candidates to the client whose project they will support.

  • 100% remote
  • Flexible hours
  • Hourly / per-task pay
  • 6 open roles

Medical Document AI Training Specialist

Submit original medical documents you authored to help train AI — remote contractor role paying $20–$40/hr for 20+ hours/week. Worldwide, English-language submissions only; strong de-identification and medical judgment required.

Medical & Health
Document
Remote · Worldwide
English
Part-time · Flexible
Entry level
Hourly · $20–$40/hr

Posted Jul 3, 2026

Video Content Data Labeling Associate (POV Household Videos)

Annotate short first-person household task videos to train AI: classify clips, track objects across frames, and write clear quality judgments. Remote contractor role, $20/hr, 20+ hrs/week, start within ~24 hours with estimated project earnings of $3,200.

Image & Video Annotation
Video
Remote · Worldwide
English
Part-time · Flexible
Entry level
Hourly · $20/hr

Posted Jul 3, 2026

Senior Full Stack Engineer (Remote, Contract)

Join OpenTrain as a Senior Full Stack Engineer building web systems that power AI-training workflows. Remote contractor role, 20+ hrs/week, pay $30–$90/hr; 3+ years full‑stack experience required.

Coding & Software
Computer Code Programming
Remote · Worldwide
English
Part-time · Flexible
Entry level
Hourly · $30–$90/hr

Posted Jul 3, 2026

Medical / Healthcare AI Trainer (Remote, Part-Time)

Join OpenTrain AI as a part-time, remote Medical / Healthcare AI Trainer reviewing clinical documentation and care workflows; $15–25/hr, 20+ hours/week. No prior AI experience required—bring healthcare knowledge, attention to detail, and clear writing.

Medical & Health
Document
Remote · Worldwide
English
Part-time · Flexible
Entry level
Hourly · $15–$25/hr

Posted Jul 1, 2026

Video AI Training Specialist (Remote, Part-Time)

Join OpenTrain as a Video AI Training Specialist reviewing and annotating AI-generated and real-world video. Part-time contractor role (20+ hrs/week) paying $65–$80/hr, ideal for experienced video professionals who enjoy precise critique and dataset work.

Image & Video Annotation
Video
Remote · Worldwide
English
Part-time · Flexible
Entry level
Hourly · $65–$80/hr

Posted Jun 30, 2026

Video Editor AI Training Specialist

Join OpenTrain as a Video Editor AI Training Specialist to review AI-generated animations and VFX, build evaluation rubrics, and curate video datasets; remote, 20+ hrs/week, paid $30–$80/hr (up to $80/hr).

Image & Video Annotation
Video
Remote · Worldwide
English
Part-time · Flexible
Entry level
Hourly · $30–$80/hr

Posted Jun 30, 2026

Physics PhD AI Training Expert

Seeking a remote Physics PhD to create, review, and evaluate advanced physics problem sets and model outputs for AI training; part-time contract (~20 hrs/week) paying $80–$90/hr for 1–3 months. Work focuses on text tasks: question answering, text generation, and evaluation.

Generative AI & RLHF
Text
Remote · Worldwide
English
Part-time · Flexible
Entry level
Hourly · $80–$90/hr

Posted Jun 30, 2026

PhD Engineering AI Training Specialist

Apply your PhD engineering expertise to write authoritative responses, design experiments, and analyze results for AI training; remote, part-time contract at $80–$90/hr for 20+ hours/week. English required; worldwide applicants welcome.

Generative AI & RLHF
Text
Remote · Worldwide
English
Part-time · Flexible
Entry level
Hourly · $80–$90/hr

Posted Jun 30, 2026

Node.js Code Review Specialist

Join OpenTrain as a remote contractor reviewing Node.js, JavaScript, and TypeScript code to create high-quality training data for AI systems; part-time (≈20 hrs/week) for 1–3 months, paid $30–$90/hr. Bring strong backend experience and clear technical communication.

Coding & Software
Computer Code Programming
Remote · Worldwide
English
Part-time · Flexible
Entry level
Hourly · $30–$90/hr

Posted Jun 30, 2026

Military Operations & IHL Expert

Join OpenTrain to apply your military operations, targeting, and international humanitarian law expertise to evaluate AI model outputs and design policy-relevant evaluation tools; remote contract work, 20+ hrs/week, $50–$90/hour. Help shape responsible AI behavior in defense and humanitarian context

Generative AI & RLHF
Text
Remote · Worldwide
English
Part-time · Flexible
Expert level
Hourly · $50–$90/hr

Posted Jun 30, 2026

Mental Health Crisis Prevention Expert

Join OpenTrain to help design taxonomies, rubrics, and benchmarks for detecting self-harm, eating disorders, and suicide risk in AI systems; remote, contractor role (20+ hrs/week) paying USD $50–$90/hr, English required.

Medical & Health
Text
Remote · Worldwide
English
Part-time · Flexible
Entry level
Hourly · $50–$90/hr

Posted Jun 30, 2026

Mathematical Content Review Specialist

OpenTrain is hiring a PhD-level mathematician to review, create, and evaluate advanced mathematical content for AI training—remote, contract role at 20+ hrs/week, paid $60–$90/hr. Help build rigorous math datasets, write problems and proofs, and shape how models learn.

Generative AI & RLHF
Text
Remote · Worldwide
English
Part-time · Flexible
Entry level
Hourly · $60–$90/hr

Posted Jun 30, 2026

Marketing and Commercial Strategy AI Training Specialist

Review marketing and sales decks, build rubrics, analyze campaign and dashboard data, and help train AI business tools in a contract role paying $50–$60/hr for 20+ hours/week. Join OpenTrain to grow a flexible freelance career shaping how commercial AI behaves.

Generative AI & RLHF
Document
Remote · Worldwide
English
Part-time · Flexible
Entry level
Hourly · $50–$60/hr

Posted Jun 30, 2026

Management Consultant / Business Strategy Specialist

Remote contractor role developing strategic recommendations, executive presentations, financial models, and scoring rubrics used to train AI; $50–70/hr, 20+ hrs/week. Join OpenTrain to apply consulting experience to real business documents and help shape model behavior.

Generative AI & RLHF
Document
Remote · Worldwide
English
Part-time · Flexible
Entry level
Hourly · $50–$70/hr

Posted Jun 30, 2026

M&A Attorney for Contract Review and AI Evaluation

Expert M&A attorney needed to redline contracts, perform simulated negotiations, and evaluate AI responses to improve contract-review models. Remote contractor role (OpenTrain AI), 20+ hrs/week, $80–$105/hr; requires J.D., active U.S. bar, and 2+ years M&A experience.

Legal & Finance
Text
Remote · Worldwide
English
Part-time · Flexible
Expert level
Hourly · $80–$105/hr

Posted Jun 30, 2026

Legal AI Training Specialist (Remote, Part-Time)

Help train legal AI by reviewing contracts, interpreting regulations, and writing concise legal summaries for a remote contractor role. Entry-level friendly, 20+ hrs/week, paid $15–$25/hr, English required.

Legal & Finance
Document
Remote · Worldwide
English
Part-time · Flexible
Entry level
Hourly · $15–$25/hr

Posted Jun 30, 2026

Korean Bilingual Video Transcription And Translation Expert

Help improve AI systems through Korean-English video transcription, translation, and nuanced language analysis. This remote contract offers flexible project-based work at $20–$65 per hour.

Translation & Localization
Video
Remote · Worldwide
Korean, English
Part-time · Flexible
Entry level
Hourly · $20–$65/hr

Posted Jun 30, 2026

JavaScript Frontend Developer

Join OpenTrain as a JavaScript Frontend Developer to build and optimize user-facing tools that power AI training workflows. Remote contract role, 20+ hours/week, pay $30–$90 USD/hour, focused on modern JavaScript, architecture, code quality, and mentoring.

Coding & Software
Computer Code Programming
Remote · Worldwide
English
Part-time · Flexible
Entry level
Hourly · $30–$90/hr

Posted Jun 30, 2026

Japanese-English Transcription AI Training Expert

Help improve AI transcription systems by accurately transcribing, reviewing, and editing Japanese-English audio and written materials. This remote contractor role offers flexible part-time work at $30-$65 per hour.

Audio & Speech
Audio
Remote · Worldwide
Japanese, English
Part-time · Flexible
Entry level
Hourly · $30–$65/hr

Posted Jun 30, 2026

Go Backend Developer & AI Coding Tools Reviewer

OpenTrain AI is hiring a remote Go backend developer to build REST/GraphQL endpoints and run focused evaluations of alpha AI coding tools; part-time (<20 hrs/week), contract role paying $30–$90/hr. Ideal for experienced Go engineers who enjoy debugging and product QA.

Coding & Software
Computer Code Programming
Remote · Worldwide
English
Part-time · Flexible
Intermediate level
Hourly · $30–$90/hr

Posted Jun 30, 2026

Funds Contracts Attorney, Contract Redlining

Part-time contractor role reviewing and grading AI-generated contract redlines for fund documents (LPAs, subscription agreements, side letters). Requires active U.S. bar and funds-department experience; pays $80–$105/hr and is under 20 hrs/week.

Legal & Finance
Text
Remote · Worldwide
English
Part-time · Flexible
Intermediate level
Hourly · $80–$105/hr

Posted Jun 30, 2026

Financial Analysis Specialist (Remote, Part-Time Contract)

Join OpenTrain to analyze real-world financial documents, build models, and rate outputs that train next-generation AI. Part-time contractor role (20+ hrs/week), remote, $15–$25/hr; strong Excel, risk-awareness, and clear communication required.

Legal & Finance
Document
Remote · Worldwide
English
Part-time · Flexible
Entry level
Hourly · $15–$25/hr

Posted Jun 30, 2026

Finance AI Training Expert (Remote, Contract)

Review and validate financial documents to help train AI—perform reconciliations, variance analysis, and ERP review. Remote contract, 20+ hrs/week, paid hourly ($10–$55/hr, top rate $55/hr); requires Bachelor's plus 4+ years relevant finance or accounting experience and fluent English.

Legal & Finance
Document
Remote · Worldwide
English
Part-time · Flexible
Entry level
Hourly · $10–$55/hr

Posted Jun 30, 2026

Entrepreneur & Business Systems Specialist

Join OpenTrain to use your real-world business operations experience to evaluate CRMs, project management and automation tools for AI training datasets; part-time contractor work (20+ hrs/week) pays up to $120/hr.

Generative AI & RLHF
Document
Remote · Worldwide
English
Part-time · Flexible
Entry level
Hourly · $50–$120/hr

Posted Jun 30, 2026

English Audio Transcription Specialist

Join OpenTrain AI as a remote English Audio Transcription Specialist transcribing and correcting audio to train next‑generation AI, $20–30/hr. Part‑time contractor role (20+ hours/week) for experienced transcribers who can tag metadata and follow strict quality standards.

Audio & Speech
Audio
Remote · Worldwide
English
Part-time · Flexible
Intermediate level
Hourly · $20–$30/hr

Posted Jun 30, 2026

Engineering Technical Documentation Reviewer

Join OpenTrain AI as a remote Engineering Technical Documentation Reviewer earning $40–$50/hr by reviewing blueprints, CAD outputs, and inspection reports to train AI systems. This part-time contractor role requires 20+ hours/week, English fluency, and real-world technical documentation experience.

Generative AI & RLHF
Document
Remote · Worldwide
English
Part-time · Flexible
Entry level
Hourly · $40–$50/hr

Posted Jun 30, 2026

Excel Data Analyst for AI Training

Join OpenTrain AI as a part-time Excel Data Analyst working 20+ hours/week to clean, validate, and analyze document datasets used for text-generation and evaluation tasks. Earn $40–$55/hr (USD) while producing the reports and visualizations that improve AI training workflows.

Generative AI & RLHF
Document
Remote · Worldwide
English
Part-time · Flexible
Entry level
Hourly · $40–$55/hr

Posted Jun 30, 2026

Child and Online Safety Expert

Join OpenTrain AI as a contracted Child and Online Safety Expert to design taxonomies, detection frameworks, and clinical response rubrics that help AI systems recognize and respond to youth self-harm, eating disorders, and online exploitation. Remote, part-time work (20+ hrs/week) paying $50–$90/hr

Generative AI & RLHF
Text
Remote · Worldwide
English
Part-time · Flexible
Entry level
Hourly · $50–$90/hr

Posted Jun 30, 2026

Remote Chemical Safety & Toxicology Expert

Contract role for chemical safety and toxicology experts to evaluate model outputs and documents; $50–$90/hr, 20+ hours/week, with estimated project earnings of $8,000–$14,400. Work remotely for OpenTrain AI to shape how AI systems handle hazardous-chemicals content.

Medical & Health
Document
Remote · Worldwide
English
Part-time · Flexible
Expert level
Hourly · $50–$90/hr

Posted Jun 30, 2026

Business Presentation Consultant

Use expert PowerPoint and business-communication skills to create and evaluate executive-ready presentations that teach AI how to produce polished slide decks. Remote contract, 20+ hours/week, $30–$55/hr for part-time consultants.

Writing & Editing
Document
Remote · Worldwide
English
Part-time · Flexible
Entry level
Hourly · $30–$55/hr

Posted Jun 30, 2026

What this work can involve

AI training work turns human judgment into useful examples for artificial-intelligence systems. Depending on the individual role, tasks may include labeling images or video, transcribing or recording audio, writing or rating model responses, evaluating search results, translating text, reviewing code, or applying subject-matter knowledge. For applicants located in Hong Kong SAR China, the relevant postings are those that explicitly state they accept applicants in that country. Read each listing to understand the specific assignment.

  • Work may involve preparing, checking, or evaluating examples used to develop AI systems.
  • The subject and format can vary, from visual data and audio to language, search, code, or expert review.
  • Eligibility to apply from Hong Kong SAR China is determined by the individual posting.

How hiring works through OpenTrain

OpenTrain is the hiring organization for the public roles on OpenTrain, and candidates apply through OpenTrain. If a candidate is successful, OpenTrain may place or refer them to the client whose project they will support. Because client requirements and role details can differ, review the individual live posting before deciding whether to apply.

  • Apply through OpenTrain rather than directly to an unnamed client.
  • OpenTrain may place or refer successful candidates to the relevant project client.
  • The individual posting controls eligibility and all role-specific requirements.

Frequently asked questions

What can this work involve?
Remote AI training and data labeling work can 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. The exact activity depends on the individual role, so applicants located in Hong Kong SAR China should read each posting carefully.
Where can I find role-specific details?
The individual live posting is the source of truth for whether applicants located in Hong Kong SAR China are eligible and for the role's responsibilities, qualifications, experience, pay, hours, schedule, location rules, and client-specific requirements. Check the full posting for the details that apply to a particular opportunity.
How does hiring work through OpenTrain?
OpenTrain is the hiring organization for roles on OpenTrain, and candidates apply through OpenTrain. OpenTrain may place or refer successful candidates to the client whose project they will support. The individual live posting provides the applicable role information and requirements.