Yeaseul H.
AI Data Annotation & Evaluator | Bilingual Tech Writer
Korean–English Bilingual | AI Data Annotation & Technical Writing I specialize in Korean speech and text data annotation for AI model training, with hands-on experience in transcript alignment, metadata tagging, and RLHF- or chatbot-based evaluation workflows. As a senior reviewer on multi-layered AI projects, I’ve contributed to prompt refinement, domain/environment classification, and structured quality reviews to ensure dataset reliability and training value. I’m comfortable following complex annotation guidelines precisely and consistently. In parallel, I bring 4+ years of experience supporting B2B SaaS platforms, where I handled technical support, process design, and documentation. This background has helped me build strong technical literacy and a structured communication skill set—skills I aim to apply to freelance opportunities in technical content writing as well, especially where clarity and guideline adherence are critical. Core Strengths: • Korean speech annotation, RLHF & chatbot evaluation • Transcript-text alignment & metadata consistency checks • Writing manuals and user guides for SaaS tools • Clear communication in both Korean and English Additional Capabilities: • Natural Korean voice recording for AI training datasets • Experience with product upload workflows on Korean e-commerce platforms Open to: – AI data tasks (RLHF, prompt tuning, chatbot/speech QA) – Technical documentation and content writing – English-to-Korean refinement with attention to tone and instruction-level accuracy
Earnings and projects
Last 6 months ÷ 6
Last 6 months: $5k
Billed in all: $7,941$7.9k
$1k in the last 6 months
Across 12 contracts
Earnings, last 30 days
Skill rankings: Top 5% in Voice Recording
Ranked by MRR among everyone on Upwork with the skill.
- #9RLHF76 freelancers · 🇰🇷 #1Top 12%🇰🇷#1 of 3
- #21Voice of the Customer110 freelancers · 🇰🇷 #1Top 19%🇰🇷#1 of 2
- #23English to Korean Translation230 freelancers · 🇰🇷 #12Top 10%🇰🇷#12 of 141
- #27AI Instruction152 freelancers · 🇰🇷 #2Top 18%🇰🇷#2 of 2
- #39AI Model Training Prompt337 freelancers · 🇰🇷 #2Top 12%🇰🇷#2 of 3
- #77Sales Writing897 freelancers · 🇰🇷 #1Top 9%🇰🇷#1 of 1
- #81Customer Feedback Documentation365 freelancers · 🇰🇷 #1Top 22%🇰🇷#1 of 1
- #110Ecommerce Product Upload925 freelancers · 🇰🇷 #1Top 12%🇰🇷#1 of 1