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Sungjae H.

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.

🇰🇷Daegu, South Korea$15/hr90% JSS5.00 (15)Since Jan 2025

Earnings and projects

MRR
$2.3k

Last 6 months ÷ 6

World#19,179 / 412k
🇰🇷Country#29 / 676
Revenue, last 30 days
$2.2k

Last 6 months: $14k

World#19,440 / 412k
🇰🇷Country#28 / 676
Total earnings
$33k

Billed in all: $36k

World#103,255 / 412k
🇰🇷Country#123 / 676
Per project
$1.1k

$1k in the last 6 months

World#113,874 / 412k
🇰🇷Country#149 / 676
Projects, last 6 months
13

Across 14 contracts

71% fixed29% hourly
World#12,441 / 412k
🇰🇷Country#23 / 676
Projects in all
29

Across 36 contracts

75% fixed25% hourly
World#100,215 / 412k
🇰🇷Country#126 / 676

Earnings, last 30 days

$35.8k+$2.2k earned in the last 30 daysBilled in all, before Upwork's fee · drag across the chart to see what was earned in any stretch
$32k$34k$36kOct 8Oct 23Nov 7

Skill rankings: Top 2% in Korean

Ranked by MRR among everyone on Upwork with the skill.

  1. #7Korean329 freelancers · 🇰🇷 #4Top 2%
  2. #20Japanese898 freelancers · 🇰🇷 #1Top 2%
  3. #68QA Testing1,392 freelancers · 🇰🇷 #1Top 5%