Jungu Kang
Server Developer at 토스증권 (Toss Securities)
Seoul, South Korea
Summary
👤
Senior🎓
Top SchoolJungu Kang is a server developer with 10 years of experience, currently building and operating real-time market data systems for US stocks and overseas bonds at Toss Securities in Seoul. He has strong startup and product experience, having led backend efforts from MVP to pre-Series A growth at EmoticBox and later guided backend architecture and team growth as a tech lead at Riiid. His domain expertise spans user/auth, permissions, payments, product, and CRM integrations, with a particular focus on making backend systems more robust and maintainable. Comfortable both hands-on and in leadership, he has scaled small engineering teams and helped them deliver production-critical services. Trained in cyber security (BE, Ajou University), he brings a security-minded approach to high-throughput financial systems. An engineer who prefers shipping reliable infrastructure over flashy headlines, he blends operational rigor with product-minded engineering.
10 years of coding experience
4 years of employment as a software developer
Bachelor of Engineering - BE, Dept. of Cyber Security, Bachelor of Engineering - BE, Dept. of Cyber Security at Ajou University
English
Github Skills (7)
css4
react4
ctf4
security3
campus1
owncloud1
nextcloud1
Programming languages (5)
Github contributions (5)
ajou-whois/1st-cyber-security-mini-ctf
Nov 2017 - Sep 2018
Contributions:43 commits, 2 PRs, 27 pushes in 10 months
cyberctfsecuritycyber-security
chr0m3/boj-codes
May 2017 - Mar 2021
Contributions:176 commits, 155 pushes, 1 branch in 3 years 10 months
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