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Jia Geng C.
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Jia Geng C.

Manual testing | Software testing | Payment testing Singapore SGD

I am a PhD-holder, full-time software tester for clients who need manual L3 QA testing on their website, desktop or mobile application alongside quality screen recording and issue documentation. I am based in Singapore and I will only perform the testing from Singapore. I have a full suite of iOS, macOS, windows, android, linux devices and a range of Singapore bank debit cards and Singapore/Malaysia-only mobile wallets for payment testing. Other services I provide include: market research, on-site visits, mystery shopping, linguistic localisation, and native voice recording in and on-site interpretation services in Singaporean English and Mandarin. I am formally educated in computer science. I have over 5 years of experience in Python, HTML, CSS, and JavaScript. I have built various applications and websites for academic and commercial uses. Educational background: 2026 October: I completed my PhD in integrating generative/predictive AI for cancer biology and biomedical datasets at the National University of Singapore. 2021 July: I completed my Bachelors degree in Natural Sciences at University of Cambridge with first-class honours.

🇸🇬Singapore, Singapore$25/hr100% JSS5.00 (8)Since Jul 2018

Earnings and projects

MRR
$687

Last 6 months ÷ 6

World#64,443 / 412k
🇸🇬Country#56 / 486
Revenue, last 30 days
$697

Last 6 months: $4.1k

World#53,898 / 412k
🇸🇬Country#42 / 486
Total earnings
$13k

Billed in all: $16k

World#175,186 / 412k
🇸🇬Country#161 / 486
Per project
$462

$458 in the last 6 months

World#190,022 / 412k
🇸🇬Country#203 / 486
Projects, last 6 months
9

Across 10 contracts

90% fixed10% hourly
World#21,107 / 412k
🇸🇬Country#9 / 486
Projects in all
28

Across 34 contracts

65% fixed35% hourly
World#103,226 / 412k
🇸🇬Country#83 / 486

Earnings, last 30 days

$15.6k+$697 earned in the last 30 daysBilled in all, before Upwork's fee · drag across the chart to see what was earned in any stretch
$14.5k$15.0k$15.5k$16.0kOct 9Oct 24Nov 8

Skill rankings: Top 10% in Website Copywriting

Ranked by MRR among everyone on Upwork with the skill.

  1. 3Mobile Wallet18 freelancers · 🇸🇬 #1Top 17%
  2. #6Mobile Payment Functionality47 freelancers · 🇸🇬 #1Top 13%
  3. #17FinTech Consulting149 freelancers · 🇸🇬 #1Top 11%
  4. #17On-Site Coordination72 freelancers · 🇸🇬 #1Top 24%
  5. #22Mystery Shopping151 freelancers · 🇸🇬 #1Top 15%
  6. #23Localization Testing153 freelancers · 🇸🇬 #1Top 15%
  7. #25Desktop Application Testing160 freelancers · 🇸🇬 #1Top 16%
  8. #39Payment Functionality214 freelancers · 🇸🇬 #1Top 18%