Nguyen L.
Data Quality Assessment Specialist | AI Data Auditor | Vietnamese Expe
With 10 years of experience in technical operations, I specialize in Data Quality Assessment and AI model training support. I ensure precision, consistency, and strict adherence to guidelines across multiple data modalities. Core Expertise: Conversation & Text AI Auditing: Evaluating response coherence, safety flagging, fact-checking, and prompt-response alignment. TTS (Text-to-Speech) Auditing: Assessing synthetic speech for naturalness, accent accuracy, pronunciation, tone, and acoustic clarity. Guideline Compliance: Deep attention to detail to catch subtle errors and maintain high dataset standards for Vietnamese language data. I believe AI model quality depends on clean input data—that is why I don't just process data; I rigorously audit it.
Earnings and projects
Last 6 months ÷ 5.8 months active (since May 2026)
Last 6 months: $6.9k
Billed in all: $6,997$7k
$1.7k in the last 6 months
Earnings, last 30 days
Skill rankings: Top 6% in Vietnamese
Ranked by MRR among everyone on Upwork with the skill.
- #15Vietnamese251 freelancers · 🇻🇳 #14Top 6%🇻🇳#14 of 220
- #118Data Labeling1,093 freelancers · 🇻🇳 #8Top 11%🇻🇳#8 of 29
- #144AI Model Training1,135 freelancers · 🇻🇳 #3Top 13%🇻🇳#3 of 13
- #249Data Annotation2,301 freelancers · 🇻🇳 #7Top 11%🇻🇳#7 of 34
- #3,044Virtual Assistance29,113 freelancers · 🇻🇳 #8Top 10%🇻🇳#8 of 123
- #5,139Data Entry53,630 freelancers · 🇻🇳 #17Top 10%🇻🇳#17 of 219