An Vu - LLM Trainer

Q: Where is An based?

An is based in Hanoi, Viet Nam and can operate in on-site , hybrid , and remote work models.

Q: What languages does An speak?

An speaks the following languages: Vietnamese (Native), English (Advanced), Chinese (Elementary) .

Q: How many years of experience does An have?

An has at least 4 years of experience. During this time, An has worked in at least 4 different roles and for 4 different companies . The average length of individual experience is 1 year . Note that An may not have shared all experience and actually has more experience.

Q: What is An's latest experience?

An's most recent position is LLM Trainer - Agentic at Turing Group .

Q: What companies has An worked for in recent years?

In recent years, An has worked for Turing Group , iMerit Scholars , RWS Group , and Corporate Register LTD .

Q: Which industries is An most experienced in?

An is most experienced in industries like Professional Services and Information Technology .

Q: Which business areas is An most experienced in?

An is most experienced in business areas like Quality Assurance , Information Technology , and Sustainability Management . An also has some experience in Product Development .

Q: What is An's education?

An holds a Master in Global Financial Trading with EPP from Coventry University London and a Bachelor in Computer Science from University of Southampton .

Q: Does An have any certificates?

An has 1 certificate : Silver Certificate .

Recommended expert

Hanoi, Viet Nam

Check rate

Experience

Jun 2025 - Present

1 year 2 months

LLM Trainer - Agentic

Turing Group

Designed and authored multi-turn dialogues simulating real interactions between users and AI assistants.
Generated high-quality datasets for LLM fine-tuning and benchmarking.
Ensured logical flow, natural conversation, and accurate function-call usage.
Maintained strict quality and formatting standards, revising outputs based on feedback.
Collaborated with peers to ensure consistency, clarity, and realism in training data.

Feb 2025 - Present

1 year 6 months

Gen AI Data Annotation Specialist

iMerit Scholars

Reviewed and tagged sensitive text, images, and videos for personally identifiable information (PII) using Meta SRT Halo and bounding box tools.
Applied detailed content guidelines to ensure safety and compliance, achieving 95% accuracy across multilingual datasets.
Collaborated with language leads and project managers to maintain quality standards in AI training data.

Jan 2025 - Sep 2025

9 months

Data Specialist (Vietnamese)

RWS Group

Reviewed and annotated OCR'd text in images for language detection, improving the accuracy of language identification.
Utilized prompts for video generation, achieving successful delivery of outputs within project deadlines.
Evaluated translations of English prompts into the target language, ensuring 95% accuracy in capturing tone, nuance, and meaning.
Tools: SRT Halo, Mango, Squirrel, Veo3

Apr 2022 - Sep 2024

2 years 6 months

Data Operator

Corporate Register LTD

Classified and quality-checked 10,000+ ESG reports, ensuring consistency, accuracy, and proper categorization.
Applied structured data policies and formatting standards to maintain high data integrity.
Automated repetitive workflows in Python, reducing manual work by 20% while minimizing error rates.

Industry Experience

See where this freelancer has spent most of their professional time.

Experienced in Professional Services and Information Technology.

Professional Services

Information Technology

Business Area Experience

See which departments and functions this freelancer has contributed to most.

Experienced in Quality Assurance, Information Technology, Sustainability Management, and Product Development.

Quality Assurance

Information Technology

Sustainability Management

Product Development

Summary

Detail-oriented Data Annotation and AI Training Specialist with hands-on experience labeling text, images, and video for leading LLM projects. Skilled in applying annotation guidelines, QA processes, and compliance standards with 95%+ accuracy. Experienced in multilingual datasets, function-calling simulations, and structured data workflows to support high-quality AI model training and evaluation.

Skills

Proficient Use Of Python, Sql, Tableau, Power Bi, Jira, Google Analytics, Gen Ai And Microsoft Office Package.

Languages

Vietnamese

Native

English

Advanced

Chinese

Elementary

Education

Sep 2021 - Jun 2023

Coventry University London

MSc Global Financial Trading with EPP · Global Financial Trading with EPP · London, United Kingdom

Sep 2018 - Jun 2021

University of Southampton

BSc in Computer Science · Computer Science · Southampton, United Kingdom

Sep 2016 - Jun 2018

Bellerbys College

A-Level Programme · United Kingdom · AAA

Certifications & licenses

Silver Certificate

UKMT Senior Mathematical Challenge

Statistics

Experience

Total positions 4

Experience in Professional Services 4 y

Avg length 1 y 5 m

Longest experience 2 y 5 m

Expertise

Recent roles LLM Trainer - Agentic, Gen AI Data Annotation Specialist, Data Specialist (Vietnamese)

Main industries Professional Services, Information Technology

Main business areas Quality Assurance, Information Technology, Sustainability Management

Qualifications

Highest degree Master

Certifications earned 1

Profile

Created

November 2025

Last Update

February 2026

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Frequently asked questions

Have questions? Find more information here.

Where is An based?

An is based in Hanoi, Viet Nam and can operate in on-site, hybrid, and remote work models.

What languages does An speak?

An speaks the following languages: Vietnamese (Native), English (Advanced), Chinese (Elementary).

How many years of experience does An have?

An has at least 4 years of experience. During this time, An has worked in at least 4 different roles and for 4 different companies. The average length of individual experience is 1 year. Note that An may not have shared all experience and actually has more experience.

What roles would An be best suited for?

Based on recent experience, An would be well-suited for roles such as: LLM Trainer - Agentic, Gen AI Data Annotation Specialist, Data Specialist (Vietnamese).

What is An's latest experience?

An's most recent position is LLM Trainer - Agentic at Turing Group.

What companies has An worked for in recent years?

In recent years, An has worked for Turing Group, iMerit Scholars, RWS Group, and Corporate Register LTD.

Which industries is An most experienced in?

An is most experienced in industries like Professional Services and Information Technology.

Which business areas is An most experienced in?

An is most experienced in business areas like Quality Assurance, Information Technology, and Sustainability Management. An also has some experience in Product Development.

What is An's education?

An holds a Master in Global Financial Trading with EPP from Coventry University London and a Bachelor in Computer Science from University of Southampton.