π I'm a backend engineer and founder of koko β 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.
- π§ Backend specialist in Python (FastAPI), and Java/Kotlin (Spring Boot)
- π§³ Experienced in building fintech and Web3 systems
- π Passionate about global mobility, localization, and expat life
- π¬ 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
- π€ Companion-like experiences over cold tools
- π¦ Minimum burden, maximum clarity
- π‘ Build for self-sufficiency, not dependence
- πΌ LinkedIn: linkedin.com/in/heejeong-choi
- π Email: jennachoi27@gmail.com
Thanks for visiting β letβs build something meaningful together!