Nan
Senior Backend Engineer at PayPay
Nara Prefecture, Japan
Summary
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Senior🎓
Top SchoolNan is a Senior Backend Engineer with 10 years of experience building high-performance, reliable services across China and Japan, currently focused on payments and rewards systems at PayPay. Trained in computer engineering and information security at Nankai University, Nan started at Tencent working with C/C++ and MySQL and later spent seven years at MonotaRO leading platform and data teams to deliver scalable eCommerce infrastructure across Asia. He combines hands-on systems coding (PHP, Python) with platform engineering practices—CI/CD, IaC, SRE—and has driven large-scale data pipelines handling millions of SKUs and users. At PayPay he architected and owned real-time, strongly consistent point-exchange integrations with major partners, demonstrating both product-facing delivery and deep technical stewardship. Fluent in cross-cultural engineering leadership, he has a track record of mentoring teams, establishing observability and on-call practices, and turning complex integrations into operationally robust systems.
10 years of coding experience
8 years of employment as a software developer
Master of Engineering, Computer Technology/Information Security, GPA: 3.39/4.0, Master of Engineering, Computer Technology/Information Security, GPA: 3.39/4.0 at Nankai UniversityBachelor of Science, Computer Science and Technology, GPA: 3.82/4.0, Bachelor of Science, Computer Science and Technology, GPA: 3.82/4.0 at Capital Normal University
Japanese, Chinese, ChineseGithub contributions (5)
NolanZONG/Blog
Nov 2016 - Jun 2021
Contributions:27 pushes, 1 branch in 4 years 7 months
NolanZONG/pim-community-standard
Apr 2018 - Apr 2018
Contributions:7 commits, 6 pushes, 1 branch in 7 days
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