Sungjae H.
QA & Localization Specialist | Web, App, and Game Content Testing
I’m a bilingual QA and localization specialist with extensive experience in testing and translating digital content, including web applications, mobile apps, and games. Since joining Hanbit Soft Japan in 2014, I have translated and reviewed large volumes of Korean–Japanese game content — from in-game text and update notes to contracts and event materials — while maintaining consistency, tone, and localization quality. My work on projects such as Granado Espada’s 10th anniversary event involved managing and verifying tens of thousands of Excel entries across languages. Over time, I have expanded my expertise to include quality assurance (QA) for websites and applications. I specialize in identifying UI/UX inconsistencies, language errors, and functionality issues through detailed manual testing. My approach combines linguistic accuracy with usability analysis, ensuring products not only read naturally but also provide a smooth user experience. Having lived in Japan for over a decade, I’m deeply familiar with local language nuance and user expectations. My goal is always to deliver fluent, user-friendly, and culturally adapted results that meet both technical and linguistic standards.
Earnings and projects
Last 6 months ÷ 6
Last 6 months: $14k
Billed in all: $35,777$36k
$1k in the last 6 months
Across 14 contracts
Across 36 contracts
Earnings, last 30 days
Skill rankings: Top 2% in Korean
Ranked by MRR among everyone on Upwork with the skill.
- #7Korean329 freelancers · 🇰🇷 #4Top 2%🇰🇷#4 of 182
- #20Japanese898 freelancers · 🇰🇷 #1Top 2%🇰🇷#1 of 15
- #68QA Testing1,392 freelancers · 🇰🇷 #1Top 5%🇰🇷#1 of 4