Sangjun Jung
Director Software Engineering at MarqVision (YC S21)
Seoul, South Korea
Summary
👤
Senior🎓
Top SchoolSangjun Jung is a Director of Software Engineering based in Seoul with 13 years of experience designing and running large-scale web automation and data collection systems for dynamic online marketplaces. At MarqVision (YC S21) he leads a team that builds resilient, high-speed scraping and workflow automation services, translating brittle web surfaces into reliable data streams. His strengths lie in tackling engineering challenges at the intersection of scalability, reliability, and anti-bot variability, ensuring smooth continuous acquisition without sacrificing performance. A Yonsei University alumnus, he combines hands-on system design with team leadership and a pragmatic focus on operational excellence. Notably, he pairs deep technical expertise with a practical sense of humor—hinted by a terse GitHub bio—reflecting a no-nonsense, results-first approach.
13 years of coding experience
Bachelor's Degree, Bachelor's Degree at Yonsei University
Korean, English
Stackoverflow
11reputation
688reached
0answers
1question
Github Skills (114)
python10
windows10
bash10
cookiecutter10
pyasn110
pfx10
xadmin10
xls10
heroku10
javascript10
unix10
django10
linux10
dates10
csv10
Programming languages (4)
Github contributions (5)
bandoche/PyPinkSign
May 2015 - Nov 2022
PinkSign – a friendly Python library for NPKI (공동인증서, 구 공인인증서) certificates 🔑
Contributions:10 releases, 1 review, 146 commits in 7 years 6 months
python-librarycryptographynpkipythonpkcs1
bandoche/pyLine
Apr 2013 - Nov 2013
Contributions:34 commits, 5 comments, 2 issues in 7 months
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