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.
Earnings and projects
Last 6 months ÷ 6
Last 6 months: $4.1k
Billed in all: $15,628$16k
$458 in the last 6 months
Across 10 contracts
Across 34 contracts
Earnings, last 30 days
Skill rankings: Top 10% in Website Copywriting
Ranked by MRR among everyone on Upwork with the skill.
- Mobile Wallet18 freelancers · 🇸🇬 #1Top 17%🇸🇬#1 of 1
- #6Mobile Payment Functionality47 freelancers · 🇸🇬 #1Top 13%🇸🇬#1 of 1
- #17FinTech Consulting149 freelancers · 🇸🇬 #1Top 11%🇸🇬#1 of 1
- #17On-Site Coordination72 freelancers · 🇸🇬 #1Top 24%🇸🇬#1 of 1
- #22Mystery Shopping151 freelancers · 🇸🇬 #1Top 15%🇸🇬#1 of 2
- #23Localization Testing153 freelancers · 🇸🇬 #1Top 15%🇸🇬#1 of 1
- #25Desktop Application Testing160 freelancers · 🇸🇬 #1Top 16%🇸🇬#1 of 1
- #39Payment Functionality214 freelancers · 🇸🇬 #1Top 18%🇸🇬#1 of 1