Skip to content
OpenTrain AIFor AI Companies

Remote AI training and data labeling jobs in Vietnam

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.

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

AI Red Team Engineer, LLM Security & Pentesting

Part-time, remote contractor role ($40/hr) designing and running adversarial LLM evaluations and RAG pentests. Requires pentesting experience, Python/Bash/PowerShell skills, container/CI-CD security knowledge, C1 English, and immediate HackerRank + platform assessment.

Generative AI & RLHF
Text
Remote · Worldwide
Part-time · Flexible
Intermediate level
Hourly · $40/hr

Posted Oct 6, 2025

Automotive Engineering QA & AI Trainer (Python Required)

Join OpenTrain to audit and improve LLM prompts and model answers on vehicle systems—verify calculations, rate against rubrics, and draft better solutions. Part-time contractor role, $40/hr, under 20 hours/week; requires 3+ years in automotive engineering and practical Python.

Generative AI & RLHF
Text
Remote · Worldwide
Part-time · Flexible
Entry level
Hourly · $40/hr

Posted Oct 1, 2025

Scene Cut Annotation, Temporal Segmentation for YouTube Videos

Contractors wanted to mark scene cuts and transitions in ~1,000 YouTube videos (5–10 min each) using uLabel; project runs 4–6 weeks with a preferred team of 10–15 annotators. Pay is $4/hour — applicants must show prior video annotation experience and a QA process.

Image & Video Annotation
Video
Remote · Worldwide
Flexible hours
Intermediate level
Hourly · $4/hr

Posted Sep 14, 2025

Narrative Video Caption Writer (English, Dialogue & Emotion)

Write 50–250-word narrative captions that capture setting, dialogue, actions and emotion for short video clips; Captioner pay $25.75/hr and Senior QC $33.00/hr. USA-based native English speakers only; 20+ hours/week and reliable streaming internet required.

Writing & Editing
Video
Remote · Worldwide
Part-time · Flexible
Intermediate level
Hourly · $25/hr

Posted Sep 14, 2025

Guitar Fretboard Image Annotation (Label Studio)

Annotate guitar fretboards in images using Label Studio — polygon annotations per fret, one polygon/box for the playing surface, and a box/polygon for the nut; exclude the player's hand. Entry-level, remote contractor work; fixed-price $500 for the project.

Image & Video Annotation
Image
Remote · Worldwide
Flexible hours
Entry level
Fixed price · $500

Posted Sep 8, 2025

Data Scientist, Mathematical Statistics (Python)

Join OpenTrain AI as a part-time contractor applying mathematical statistics with Python (numpy, scipy, statsmodels, pandas) to analyze messy datasets, run hypothesis tests and regressions, and produce clear, reproducible summaries; remote, <20 hrs/week at $25/hr.

Coding & Software
Computer Code Programming
Remote · Worldwide
Part-time · Flexible
Entry level
Hourly · $25/hr

Posted Sep 3, 2025

Data Analytics & Visualization Specialist (Python, Dash)

Part-time contractor role building ETL pipelines and interactive dashboards using Python, Plotly/Dash, and SQL. Entry-level, remote work under 20 hrs/week at $25/hr — ideal for hands-on data analysts who document clearly and translate questions into visuals.

Coding & Software
Computer Code Programming
Remote · Worldwide
Part-time · Flexible
Entry level
Hourly · $25/hr

Posted Sep 3, 2025

Mandarin AI Content Annotator (Singapore, C1 English)

Seeking native Mandarin speakers based in Singapore with C1+ English to evaluate and rate generative AI outputs; 20+ hours/week, contract role paying USD 12/hour. Work reviewing text (and occasional images/video), classifying responses, and flagging safety or factual issues.

Generative AI & RLHF
Text
Remote · Worldwide
Part-time · Flexible
Entry level
Hourly · $12/hr

Posted Sep 2, 2025

Voice & Voicemail Recording, European Languages

Record ~30 short phone greetings and voicemail clips in your native European language and earn $24–$36; most participants finish in 30–45 minutes. Remote, flexible contractor work for in-country native speakers with a smartphone and local mobile number.

Audio & Speech
Audio
Remote · Worldwide
Part-time · Flexible
Entry level
Fixed price · $30

Posted Aug 26, 2025

Polygon Segmentation Annotator (SAM Allowed)

Entry-level contractor role labeling one target object per image using polygon segmentation in CVAT (SAM may be used with manual correction). Pay is $0.04 per labeled image; work is worldwide and continuous as the dataset (~18,000 images and growing) expands.

Image & Video Annotation
Image
Remote · Worldwide
Flexible hours
Entry level
Per task · $0.04/label

Posted Aug 25, 2025

AI Code Reviewer, Python, JavaScript/TypeScript, Rust, Ruby

Join OpenTrain AI as a freelance AI code reviewer (20+ hrs/week, $15/hr). Apply for one primary language—Python, JavaScript/TypeScript, Rust, or Ruby—and be sure to state which language you are applying for.

Coding & Software
Computer Code Programming
Remote · Worldwide
Part-time · Flexible
Intermediate level
Hourly · $15/hr

Posted Aug 1, 2025

Elementary English Language Arts Curriculum Annotator

Join a 3–6 month, fully remote U.S. contract evaluating AI-generated text against elementary ELA standards; Expert annotators (5+ years U.S. classroom experience) and Standard annotators (2+ years) can earn $35/hr with flexible, part-time hours (10+ hrs/week).

Generative AI & RLHF
Text
Remote · Worldwide
Part-time · Flexible
Entry level
Hourly · $35/hr

Posted Jul 31, 2025

Python Infrastructure Engineer, LLM Tooling & Agent Evaluation

Build and own the infrastructure that powers LLM training and agent evaluation at OpenTrain AI; remote for US & Canada, 20+ hours/week, contractor roles with hourly pay tiers (Junior $34 / Middle $37 / Senior $42). Shortlisted candidates complete a timed HackerRank and platform coding test.

Coding & Software
Computer Code Programming
Remote · Worldwide
Part-time · Flexible
Intermediate level
Hourly · $37/hr

Posted Jul 25, 2025

Senior Python Infrastructure Engineer for LLM Tooling

Join OpenTrain AI to build the Python infrastructure that powers LLM training and agent evaluation. Fully remote for Asia‑Low region, 20+ hrs/week contract work with tiered hourly pay; requires 5+ years Python, Docker, CI/CD, FastAPI/Flask, and Linux expertise.

Coding & Software
Computer Code Programming
Remote · Worldwide
Part-time · Flexible
Intermediate level
Hourly · $12.5/hr

Posted Jul 25, 2025

Data Annotator - RL Environment Tasks

Join OpenTrain AI as a part-time contractor performing in-app actions and finding information to train reinforcement-learning systems; entry-level, remote, $11/hr, 20+ hours/week using internal tooling and short task instructions.

Generative AI & RLHF
Text
Remote · Worldwide
Part-time · Flexible
Entry level
Hourly · $11/hr

Posted Jul 22, 2025

Senior Bash Code Reviewer, Shell Script Audit

Join OpenTrain AI to audit AI-generated Bash scripts: validate code in isolated environments, enforce security and reliability best practices, and coach annotators. Remote contractor role, 20+ hrs/week at $21/hr.

Coding & Software
Computer Code Programming
Remote · Worldwide
Part-time · Flexible
Intermediate level
Hourly · $21/hr

Posted Jul 10, 2025

Senior PowerShell Code Reviewer

OpenTrain AI is hiring a Senior PowerShell Code Reviewer to validate annotator reviews of AI-generated PowerShell scripts, running checks in sandboxed environments and giving rubric-based corrections and feedback. Part-time contractor role, 20+ hours/week, $24/hr, remote worldwide.

Coding & Software
Computer Code Programming
Remote · Worldwide
Part-time · Flexible
Intermediate level
Hourly · $24/hr

Posted Jul 10, 2025

Senior Go Code Reviewer

OpenTrain AI is hiring senior Go engineers to audit annotator reviews of AI-generated Go code: run snippets in sandboxes, confirm correctness and security, correct mis-ratings, and provide clear, rubric-driven feedback. Remote, contractor, 20+ hrs/week at $24/hr.

Coding & Software
Computer Code Programming
Remote · Worldwide
Part-time · Flexible
Intermediate level
Hourly · $24/hr

Posted Jul 10, 2025

Senior Angular Code Reviewer (JavaScript)

Audit AI-generated JavaScript/Angular submissions by building and running projects, checking functionality, security, performance, and accessibility, and correcting mis-ratings with concise feedback. Remote contractor, 20+ hrs/week at $23/hr; requires 7+ years professional Angular experience.

Generative AI & RLHF
Computer Code Programming
Remote · Worldwide
Part-time · Flexible
Intermediate level
Hourly · $23/hr

Posted Jul 8, 2025

Senior TypeScript (React) Code Reviewer

Join OpenTrain AI to audit AI-generated TypeScript + React code: compile, run in sandboxes, verify prompt compliance, and correct annotator ratings with clear feedback. Remote, contract, 20+ hrs/week at $25/hr—requires 7+ years of professional TypeScript/React experience.

Coding & Software
Computer Code Programming
Remote · Worldwide
Part-time · Flexible
Intermediate level
Hourly · $25/hr

Posted Jul 8, 2025

Senior TypeScript (Angular) Code Reviewer

Contract, remote role auditing AI-generated Angular (v15+) TypeScript code: verify builds, security, performance, and accessibility; correct mis-ratings and give concise rubric-aligned feedback. 20+ hrs/week, $24/hr — ideal for experienced Angular engineers.

Coding & Software
Computer Code Programming
Remote · Worldwide
Part-time · Flexible
Intermediate level
Hourly · $24/hr

Posted Jul 8, 2025

Senior Node.js Code Reviewer

Join OpenTrain AI to audit AI-generated Node.js code by running snippets in sandboxed containers, correcting mis-ratings, and giving concise feedback to meet security, performance, and quality rubrics — $24/hr, 20+ hrs/week, fully remote.

Coding & Software
Computer Code Programming
Remote · Worldwide
Part-time · Flexible
Intermediate level
Hourly · $24/hr

Posted Jul 8, 2025

Senior Docker Code Reviewer

OpenTrain AI seeks an experienced Docker-focused code reviewer to validate annotator reviews of AI-generated Dockerfiles and orchestration snippets; $24/hr, 20+ hrs/week, remote contractor role. Run builds in sandboxed VMs, flag issues, and provide concise remediation notes to meet a strict quality

Coding & Software
Computer Code Programming
Remote · Worldwide
Part-time · Flexible
Intermediate level
Hourly · $24/hr

Posted Jul 8, 2025

Senior C Code Reviewer (Security-Focused)

Join OpenTrain AI to audit annotator reviews of AI-generated C code: compile and run snippets in sandboxed containers, verify correctness under multiple build flags, and enforce security and performance best practices. Part-time contractor, remote, 20+ hrs/week at $24/hr.

Coding & Software
Computer Code Programming
Remote · Worldwide
Part-time · Flexible
Intermediate level
Hourly · $24/hr

Posted Jul 8, 2025

Senior C# Code Reviewer (Remote Contract)

Audit and validate AI-generated C# code by compiling and running snippets in isolated containers, correcting reviewer ratings, and delivering clear, actionable feedback. Part-time contractor role (20+ hrs/week) paid $25/hr for experienced .NET engineers.

Coding & Software
Computer Code Programming
Remote · Worldwide
Part-time · Flexible
Intermediate level
Hourly · $25/hr

Posted Jul 8, 2025

Senior C++ Code Reviewer (Sandboxed Audits)

Join OpenTrain AI to audit and correct reviews of AI-generated C++ snippets—compile and run code in sandboxed containers, verify correctness, and provide rubric-based feedback. Remote, contract role — 20+ hrs/week at $25/hr; requires 7+ years professional C++ experience.

Coding & Software
Computer Code Programming
Remote · Worldwide
Part-time · Flexible
Intermediate level
Hourly · $25/hr

Posted Jul 8, 2025

Senior Java Code Reviewer

Join OpenTrain to audit AI-generated Java code: compile and run snippets in sandboxed environments, verify correctness, security, and performance, and correct annotator ratings. Remote contractor, 20+ hrs/week at $25/hr; requires 7+ years modern Java experience and strong testing/concurrency skills.

Coding & Software
Computer Code Programming
Remote · Worldwide
Part-time · Flexible
Intermediate level
Hourly · $25/hr

Posted Jul 8, 2025

Senior HTML/CSS Code Reviewer

Audit and correct annotator reviews of AI-generated HTML/CSS, ensuring semantic markup, accessibility, performance, and security. Remote contractor role (20+ hrs/week) for senior front-end specialists with 7+ years’ experience — $23/hr.

Coding & Software
Computer Code Programming
Remote · Worldwide
Part-time · Flexible
Intermediate level
Hourly · $23/hr

Posted Jul 8, 2025

Senior JavaScript (React) Code Reviewer

Audit and validate annotator evaluations of AI-generated JavaScript/React code by running proof-of-work checks, verifying execution, and enforcing security and guideline standards. Part-time, remote contractor role (20+ hrs/week) paying $24/hr for experienced React reviewers.

Coding & Software
Computer Code Programming
Remote · Worldwide
Part-time · Flexible
Intermediate level
Hourly · $24/hr

Posted Jul 8, 2025

Senior Python Code Reviewer, Docker Required

Join OpenTrain AI as a part-time Senior Python Code Reviewer to audit AI-generated Python snippets in containerized sandboxes; $18/hr, remote, under 20 hrs/week. Bring 7+ years of Python experience and mandatory Docker proficiency to validate correctness, security, and guideline compliance.

Generative AI & RLHF
Computer Code Programming
Remote · Worldwide
Part-time · Flexible
Expert level
Hourly · $18/hr

Posted Jul 7, 2025

What this work can involve

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.

  • Examples of task types include image or video annotation, audio transcription and review, model-response rating, and translation checks.
  • Some roles require knowledge of particular subject areas or languages; those requirements are listed on the posting.
  • Check each live posting for the exact task description, eligibility rules, and any language or content needs.

How hiring works through OpenTrain

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.

  • Candidates apply through OpenTrain.
  • OpenTrain may place or refer successful candidates to the client for the project they will support.
  • Refer to the live posting for role-specific eligibility and terms.

Frequently asked questions

What can this work involve?
Roles that accept applicants located in Vietnam involve human tasks used to train and evaluate AI systems. Depending on the posting, tasks can include labeling images or video, transcribing or reviewing audio, rating or editing model responses, checking or producing translations, evaluating search results, or applying subject-matter knowledge to judge outputs. Each posting explains the exact responsibilities and any language or content requirements.
Where can I find role-specific details?
The individual live posting is the only source of truth for eligibility, responsibilities, qualifications, experience, pay, hours, schedule, and client-specific requirements. Inspect the posting carefully to confirm whether you meet the listed qualifications and to learn the exact duties and working terms for that role.
How does hiring work through OpenTrain?
Candidates apply through OpenTrain; OpenTrain is the hiring organization and may place or refer successful applicants to the client whose project they will support. For specifics about who can apply and what a role requires, consult the individual live posting for that opportunity.