🚀 I'm a backend engineer and founder of koko — a digital companion that helps anyone feel at home, anywhere in the world.
I build services that simplify life for short-term residents abroad, using practical tech and a culturally adaptive mindset.
- 🧠 Backend specialist in Python (FastAPI), and Java/Kotlin (Spring Boot)
- 🧳 Experienced in building fintech and Web3 systems
- 🌏 Passionate about global mobility, localization, and expat life
- 💬 Love solving real-world problems through clean, scalable code
Languages:
Python Kotlin Java C# TypeScript
Frameworks:
FastAPI Spring Boot .NET React
Tools & Infra:
Docker AWS Kubernetes Redis Kafka MySQL MongoDB
AI & Ops:
OpenAI LangChain GPT API Opensearch
- 🤝 Companion-like experiences over cold tools
- 📦 Minimum burden, maximum clarity
- 💡 Build for self-sufficiency, not dependence
- 💼 LinkedIn: linkedin.com/in/heejeong-choi
- 💌 Email: jennachoi27@gmail.com
Thanks for visiting — let’s build something meaningful together!