Open to Frontend / Full-Stack roles · new grad through mid-level
Software Engineer · Frontend & Full-Stack
I build production web apps end to end — React/TypeScript front ends, Node/Firebase/serverless back ends, and AI/LLM integration in between.
See my work// selected work
Please pick one and click around.
Pet-Centric Social Platform
A full social app for pet people: posts and feeds, multi-pet profiles, check-ins at pet-friendly places, in-person meetups, notifications, and moderation. It runs on React 19 with a callable-first Firebase backend — Cloud Functions and Firestore security rules doing the heavy lifting, with Cloudinary for media and Geoapify for places.
Real-Time AI Communication Coach
A real-time coach that scores how you're coming across as you speak — live transcription, LLM tone analysis, and audio signals combined into one score. It adds roleplay "sparring" personas, AI session recaps, and a zero-mic demo, all served through a Vercel serverless proxy to Groq (Whisper + Llama 3.3 70B) with a circuit-breaker fallback chain.
Immigration Timeline Tracker
A server-rendered dashboard for immigration backlogs: US green card categories (EB-1 through EB-5, NIW, family-based) alongside Canada's Express Entry draws. Ten years of history, per-category wait estimates, and email alerts when a cutoff date moves — fed by three scheduled pipelines that pull from official sources only.
Brand Site & Dealer Portal
Native macOS Day Planner
Attach a reward to each task; clear them all and the app throws confetti for a
Perfect Day. It builds as a plain Swift package, SwiftUI and SwiftData only.
Two hidden flags: --snapshot renders every screen to PNG offscreen,
--selftest checks what screenshots cannot, like drag-and-drop
placement and schema backfill.
// experience
Most recently: building a shipping platform from zero.
WeShipItNow · multi-carrier shipping platform
2024 — present
E-commerce sellers compare live rates across USPS, FedEx, UPS and Amazon, buy discounted labels, and track every shipment in one place. I built the React front end from scratch against a hybrid GraphQL-and-REST API, and co-designed the backend behind it — idempotent purchase flows, a durable job queue for carrier calls, and an adapter layer that keeps four carrier APIs behind one internal contract.
Supported a graduate database course covering SQL and Microsoft SQL Server.
// teaching
Interactive courses and practice tools, from guided explanations to independent drills.
Data structures you can watch: memory diagrams, live visualizations, Java/Python/JS side by side.
14 chaptersAlgorithms, frame by frame — decision trees, DP tables and shrinking intervals played back step by step.
13 chaptersHTTP, REST and GraphQL end to end — from your first fetch to versioning, caching and auth.
12 chaptersTypeScript from first principles: inference, generics, conditional types and the strict family.
12 chaptersRedis through a single system: caching, concurrency guards and read models, plus a hands-on lab.
7 stopsPractice that gradually removes the scaffolding: review, guided exercises, coding workspaces and timed builds.
4 tracksA visual introduction to message history, tool calls and the agent loop, followed by a guided coding exercise.
3 stopsSwift and SwiftUI from zero, built around a macOS app — one idea throughout: the UI is a function of your data.
4 stops// lab
Browser experiments, small games and visual sketches. Click one and it runs.
// skills
The stack I reach for.
// about
I came to engineering the long way — six years as a senior data analyst before a STEM master's at Northeastern. That path stuck with me: I build with an eye on what actually ships and what the data says afterward, and I like owning a product end to end, from a responsive React front end to the serverless functions and data model behind it. Lately I'm most interested in getting the AI/LLM pieces right — and I work in both English and Chinese.