Eun Song
Founder & CEO at Graceful Rain
Seoul, South Korea
Summary
👤
Senior🎓
Top SchoolEun Woo Song is a founder and engineer with 19 years of cross-border experience building high-performance, production-critical systems and mission-driven startups. He progressed from firmware and trading-platform engineering to directing a real-time bidding marketplace that handled ~1M requests/second, then co-founded FinTech firms before launching Graceful Rain, an AI-driven EdTech to reduce exam pressure and broaden access. Eun blends deep systems and distributed-systems expertise (C/C++, Java, Scala) with product instincts gained across Wall Street and ad-tech at scale, plus hands-on experience mentoring Seoul’s startup community. He’s equally fluent in building core infrastructure and leading early-stage companies, having shipped automated performance tooling and state-of-the-art AI engines for robo-advising and securities analytics. Based in Seoul and grounded in a purpose-driven Christian entrepreneurship, Eun frames business as service—seeking to bring “grace” into education through scalable technology.
11 years of coding experience
12 years of employment as a software developer
BS, Computer Science, BS, Computer Science at University of Colorado Boulder
English, Korean
Stackoverflow
750reputation
34kreached
16answers
1question
Github Skills (30)
finch9
rest8
combinator8
finagle8
json8
circe7
scala7
playframework6
concurrency6
atomic6
type-system6
http6
github6
java6
migration6
Programming languages (4)
Github contributions (5)
rampart81/python-backend-book
Nov 2018 - Jul 2021
Contributions:2 PRs, 5 pushes, 1 branch in 2 years 8 months
rampart81/terraform-modules
Sep 2017 - Sep 2017
Contributions:12 commits, 28 pushes, 5 branches in 21 days
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