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.
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
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
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
Use senior civil engineering judgment to design evaluation tasks, reference outputs, and rubrics that help AI systems reason about infrastructure, construction, permitting, and engineering standards.
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
Join OpenTrain to help train AI through high-quality Word and PDF review, formatting, and data extraction; remote, contractor work at 20+ hours/week with hourly pay between $20–$55 USD. Ideal for experienced document professionals comfortable with regulated materials and confidentiality.
Posted Jul 29, 2026
Join OpenTrain to design realistic business PowerPoint tasks, collaborate with LLMs to create and edit .pptx files, and evaluate model outputs; contract, remote work at $20–$60/hr with a 20+ hour/week commitment. Apply if you have advanced PowerPoint, Excel, and Word experience.
Posted Jul 29, 2026
Join OpenTrain as a part-time contractor to design reinforcement-learning code environments and expert reference solutions that teach AI to code, debug, refactor, and optimize — paid $50–$150/hr. Remote role with flexible hours; apply with a strong GitHub/GitLab record.
Posted Jul 29, 2026
Join OpenTrain to annotate biological documents and shape AI models in computational biology and medicinal chemistry. Part-time contract work (20+ hrs/week), remote worldwide, $90–$120/hr, focused on classification, entity NER, and evaluation tasks.
Posted Jul 28, 2026
Join OpenTrain as a remote Bioinformatics Scientist to curate and validate drug-discovery datasets, review AI-generated scientific outputs, and deliver written feedback that improves model behavior. Part-time contractor work (20+ hrs/week) paying $90–$120/hr USD depending on experience.
Posted Jul 28, 2026
Join OpenTrain as a remote PhD-level Physics Research and AI Evaluation Specialist—conduct physics research, create educational content, and evaluate AI-generated scientific responses. Part-time contractor role (20+ hrs/week) paying $70–$90/hr.
Posted Jul 28, 2026
Design and evaluate AI-powered enterprise workflows as a Senior Enterprise AI Productivity Specialist — 20+ hours/week, remote worldwide, contractor role paying $80–$150/hr. Build automations, integrations, adoption plans, and business-impact documentation.
Posted Jul 28, 2026
Join OpenTrain as a part-time contractor annotating audio and video for AI training (classification and transcription). Entry-level role, 20+ hours/week, paid USD $6–8/hr — help shape real AI data while working remotely.
Posted Jul 28, 2026
Use your COBOL and legacy-systems expertise to review code, explain business logic, and help improve AI training data. This remote contractor role offers $90–$120 per hour and requires 20+ hours per week.
Posted Jul 28, 2026
Use deep COBOL and mainframe expertise to explain legacy systems, evaluate code scenarios, and create training data for AI models. Remote contractor work pays $90–$126 per hour, with a 20+ hour weekly commitment.
Posted Jul 28, 2026
Join OpenTrain as a remote Data Annotator labeling video and audio for AI systems; part-time contract, 20+ hrs/week, $6–$10/hr. No prior AI experience required — attention to detail and strong English are what matter.
Posted Jul 28, 2026
Join OpenTrain AI as a remote Business Analyst to help fine-tune large language models by answering analytical questions, creating scenarios, and labeling text in English and Brazilian Portuguese. Entry-level, contractor role with flexible hours and clear quality targets.
Posted Jul 26, 2026
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.
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.
