About
Sean (Suhyun) Jeon
Software Engineer & Founder
I'm a founding engineer and product manager, and a Computer Science student at Sungkyunkwan University. I like owning problems end-to-end — from system design and LLM agents to deployment and production operations.
As the sole engineer, I shipped an AI education platform for a startup; independently, I built and launched a D2C commerce business. Across both I care most about shipping software that solves a real problem and that a small team can actually operate.
Skills
Languages
- JavaScript / TypeScript
- Python
- Dart
- C
Frontend
- React
- Next.js
- Flutter
Backend
- Express
- Flask
- Node.js
Data
- PostgreSQL
- Redis
- Firebase
Cloud
- AWS (CDK, ECS Fargate, RDS, CloudFront)
- Vercel
AI & Integrations
- LLM APIs & agents
- OAuth
- Toss Payments
- Kakao AlimTalk
Experience
Founding Engineer & Product Manager
Mar 2026 – PresentYureka (AI Education Startup)
Sole engineer behind a production AI education platform — agentic study planner, Google Drive knowledge agents, and the roadmap/pricing that landed the first paid school partnership.
Solo Full-Stack Engineer
Nov 2025 – Feb 2026Chonggak Hanwoo (Independent)
Independently built and launched a D2C commerce business — storefront, payments, and a custom operations dashboard. ₩7.5M+ in first-month revenue.
Engineer
Jun 2025 – Aug 2025TidyMind (Side Project)
Built an AI task-prioritization platform with reliable, structured LLM output.
Mobile Application Developer
Mar 2023 – Dec 2023Deeplant Inc. (Industry-Academic Project)
Flutter field app for meat-image dataset collection on PDA hardware, wired to a Flask/Firebase/central-server pipeline over REST.
Education
B.S. in Computer Science & Engineering
Mar 2022 – PresentSungkyunkwan University
Startup Founder Accelerator
Apr 2026 – May 2026Outsome Founder Sprint, Batch 6
Get in touch
Open to founding-engineer roles, product collaborations, and interesting problems. Email is the fastest way to reach me.