Junior @ Columbia University
Currently based in NYC | CS Major | AI + Backend + Full Stack Development
- I am currently working at Greenbit AI as AI software engineer, and Columbia Build Lab (Hangry) as a full stack engiener.
An AI search engine that will match friends into different activities based on budgets, personal preferences, and locations. Built with Ruby + TypeScript. → Web app
A full-stack image-based grocery search tool.
Fine-tuned a MobileNetV3 model and integrated EasyOCR to extract product data from grocery images.
Built with FastAPI + PostgreSQL + React.js + SwiftUI.
→ Web app
Custom chatbot powered by Gemini + LoRA fine-tuning, supporting MBTI-based personas and memory.
Deployed via Gradio Spaces, featuring artistic UI, user ratings, and feedback-based personalization.
Interactive 3D simulations built with Three.js + Svelte, modeling test charge motion in customizable E-fields.
Great for physics education and real-time force visualization.
→View Repo
- Email: christina.astar@gmail.com
- LinkedIn: linkedin.com/in/wantingyou
Feel free to contact me if you have any questions!

