Jiyoon Ha
Backend Engineer at Konkuk University
Seoul, South Korea
Summary
👤
Senior🎓
Top SchoolJiyoon Ha is a backend engineer with 11 years of full-stack experience building scalable, production-ready systems for real-time communication and e-commerce domains. She has deep domain knowledge across orders, products, fulfillment, seller management, coupons and settlements, which she pairs with hands-on expertise in WebRTC, WebSocket, i18n and platform engineering. At startups and product teams she’s launched microservices, migrated clusters with zero downtime, and built LLM-enabled platform features including RAG search and LLM playgrounds. Comfortable across Python, Kotlin, Spring and cloud infra (Pulumi, AWS, Kubernetes), she often bridges product, ops and business teams through interviews and cross-functional collaboration. Notably, she has led transitions away from third-party auth and payment limits without service disruption and converted cluster architectures from x86 to ARM while keeping services stable. Based in Seoul, she combines pragmatic engineering with a strong product sense to solve complex e-commerce and real-time communication problems.
11 years of coding experience
7 years of employment as a software developer
Bachelor of Engineering (B.E.), Computer Engineering, Bachelor of Engineering (B.E.), Computer Engineering at Konkuk UniversityCourse Completion, Entrepreneurship, Course Completion, Entrepreneurship at Draper University
English, Korean, Japanese
Github Skills (86)
facebook-sdk10
python10
django-framework10
saml10
authentication10
docker-desktop10
xadmin10
login-system10
django10
voting10
django-project10
webauthn10
openid-connect10
two-factor-authentication10
account-management10
Programming languages (10)
Github contributions (5)
punkyoon/nojambot
Apr 2017 - Apr 2022
Korean Dad joker
Contributions:6 releases, 26 commits, 4 PRs in 5 years
dadjokerkorean
punkyoon/live-graph
May 2017 - Feb 2019
Contributions:1 release, 31 commits, 11 pushes in 1 year 9 months
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