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Min Hyung C.

Min Hyung C.

Mechanical Engineering | Artificial Intelligence, Data Annotation

Bilingual AI evaluation and analytics specialist with a strong foundation in engineering-based analytical reasoning, mathematical modeling, and systems thinking. Utilizes a background in mechanical engineering to apply quantitative analysis, consistency checks, and structured evaluation frameworks for reviewing large-scale AI-generated content. Extensive experience evaluating thousands of AI outputs ensures the delivery of reliable model training data through guideline-based judgment, fact-checking, and cultural localization. Proven leadership in managing over 100 individuals in a highly regulated environment has optimized workflows, maintained accuracy under pressure, and enhanced cross-departmental collaboration, demonstrating exceptional judgment in complex, rule-based systems where accuracy and accountability are paramount.

🇰🇷Seongnam-si, South Korea$22/hr90% JSS5.00 (1)Since Jul 2025

Earnings and projects

MRR
$145

Last 6 months ÷ 6

World#124,431 / 412k
🇰🇷Country#213 / 676
Revenue, last 30 days
$0

Last 6 months: $871

Total earnings
$1.4k

Billed in all: $1.5k

World#364,118 / 412k
🇰🇷Country#587 / 676
Per project
$472

$435 in the last 6 months

World#188,157 / 412k
🇰🇷Country#289 / 676
Projects, last 6 months
2
100% fixed0% hourly
World#88,918 / 412k
🇰🇷Country#170 / 676
Projects in all
3
100% fixed0% hourly
World#304,140 / 412k
🇰🇷Country#505 / 676

Earnings, last 30 days

$1.5kNothing earned in the last 30 daysBilled in all, before Upwork's fee · drag across the chart to see what was earned in any stretch
$1,500$1,520$1,540$1,560Oct 8Oct 23Nov 7

Skill rankings: Top 22% in Editorial Writing

Ranked by MRR among everyone on Upwork with the skill.

  1. #27RLHF76 freelancers · 🇰🇷 #2Top 36%
  2. #30Safety Assessment98 freelancers · 🇰🇷 #1Top 31%
  3. #136Content Rewriting529 freelancers · 🇰🇷 #2Top 26%
  4. #175Editorial Writing794 freelancers · 🇰🇷 #1Top 22%
  5. #223AI Data Analytics535 freelancers · 🇰🇷 #1Top 42%
  6. #300LLM Prompt799 freelancers · 🇰🇷 #2Top 38%
  7. #560Data Engineering1,602 freelancers · 🇰🇷 #4Top 35%
  8. #618AI Bot1,765 freelancers · 🇰🇷 #3Top 35%