Hyunjoong Kim | Software Engineer
About Me
Software that creates leverage.
I build products and systems for the web and cloud.
Software becomes leverage when customers can use a product without getting stuck and teams have more time for important work.
Building products and businesses
I run Specify, Mamma, and Petty independently, connecting product planning, design, development, marketing, and sales to turn services into business results.
Visit Specify ↗Tech Stack
AI & Systems
AI AgentsRAG / GraphRAGSystem DesignSoftware Architecture
Frontend
ReactNext.jsTypeScriptTailwind CSS
Backend & Cloud
Node.jsPythonAWSServerless
Quality & Operations
Test AutomationGitHub ActionsDockerEvidence-led Validation
Experience
2026.07 — Present
Founder
SpecifyI run Specify, Mamma, and Petty as a solo founder, handling product planning, design, development, marketing, and sales to create business impact.
2023.12 — 2026.05
Tech Leader, Full-Stack & AWS Cloud Developer
Fortuna HelixLed backend and AWS cloud development, technical direction, and product delivery.
2021.12 — 2023.12
Backend & AWS Cloud Developer
HealicureBuilt backend and AWS cloud systems for healthcare and enterprise solutions.
2015.03 — 2022.02
B.S. in Computer Software Engineering
Kumoh National Institute of TechnologyStudied Computer Software Engineering.
Let's work together
Open for new ventures and collaborations