서일환 Seo
Server Engineer at Toss Securities
Seoul, South Korea
Summary
👤
Senior서일환 Seo is a seasoned engineering manager based in Seoul with 11 years of hands-on experience and over 17 years in adjacent domains like e-commerce, AI platforms, and game publishing. He currently leads back-end engineering at Coupang, aligning Tech and Business OKRs, optimizing fulfillment processes, and deploying scalable solutions across fulfillment centers. Previously he built and scaled platform engineering teams at Netmarble and Wanted Lab, delivering high-throughput crash reporting, global search and vector search tooling, and LLM-as-a-Service integrations. He combines deep systems and cloud expertise (GCP, Azure) with practical experience in blockchain-enabled game platforms and large-scale data pipelines. Known for reducing operational costs through self-built infrastructure and for untangling complex cross-functional dependencies, he balances technical ownership with stakeholder facilitation. Off the clock he writes software by day and rewrites bedtime stories by night, compiling life with two daughters.
11 years of coding experience
13 years of employment as a software developer
Korean, English
Stackoverflow
1reputation
0reached
0answers
0questions
Github Skills (31)
udp10
screensharing10
h26410
android-screen10
ffmpeg10
vp810
ffplay10
webm10
android10
tcp10
screencast10
low-latency9
mirroring9
private-key9
java7
Programming languages (6)
Github contributions (5)
magicsih/AndroidScreenCaster
Jun 2017 - Jan 2022
Efficient, low-latency Android screen casting with H.264 and WebM encoding via TCP and UDP.
Contributions:1 release, 16 commits, 23 pushes in 4 years 8 months
android-screenlow-latencytcpudpwebm
magicsih/txtwizard
May 2025 - Jun 2026
a collection of online tools for text manipulation, encryption, decryption, encoding, decoding, and more.
Contributions:4 reviews, 85 PRs, 88 pushes in 1 year 1 month
compressionencoding-decodingencryption-decryptiononline-tools-websitestext-manipulation
Find and Hire Top DevelopersWe’ve analyzed the programming source code of over 60 million software developers on GitHub and scored them by 50,000 skills. Sign-up on Prog,AI to search for software developers.