Hi, I'm Barry Chen

CS + Mathematics @ NYU · Full-stack Development · AI & Production Systems

I build production web apps, mobile tools, and backend services — with clean design and real-world usefulness.

• 🎓 Studying Computer Science + Mathematics at NYU
• 💻 Working across full-stack development, backend services, and applied AI
• 🗓️ Building a native Android study & social calendar app
• 🌐 Shipping Next.js / Tailwind websites for real hospitality businesses
• 🧠 Interested in evaluation systems, developer tooling, and infrastructure that stays reliable in production

Some of my engineering happens in private production repositories, so it isn't visible here. Broadly, that work covers:

• Backend services — Python/FastAPI APIs with PostgreSQL, SQLAlchemy/Alembic migrations, authentication, role-based access control, and webhook integrations
• Applied AI systems — LLM evaluation harnesses (rubric design, automated judging, scoring pipelines) and real-time voice-agent applications
• Frontend & dashboards — Next.js and React interfaces for internal operations and reporting
• Cloud & infrastructure — containerized services on Google Cloud Run, provisioned with Terraform and deployed through GitHub Actions CI/CD

Production Next.js + Tailwind CSS sites built and maintained for real accommodation businesses — custom design, image optimization, and analytics.

• alexwebsite
• alexanderinn
• hobsonlodgenew

A native Kotlin + Jetpack Compose app with a day timeline, friend statuses, shared calendars, common-free-time suggestions, study rankings, and a foreground study timer. Backed by Supabase (Postgres + auth).

Contributor to a React + TypeScript + Supabase creative workflow tool built with Vite, Radix UI, and TanStack Query.

• creative-companion

Languages: Python · TypeScript · JavaScript · Kotlin · Java · C · HTML · CSS

Web: Next.js · React · Tailwind CSS · Gatsby · Vite · Radix UI

Mobile: Kotlin · Jetpack Compose (Android)

Backend: FastAPI · PostgreSQL · Supabase · SQLAlchemy / Alembic · Pydantic · REST APIs

AI / Voice: LiveKit Agents · LLM evaluation harnesses · OpenAI / Anthropic APIs

Cloud / Infra: AWS EC2 · Google Cloud Run · Terraform · Docker · GitHub Actions CI/CD

Testing: pytest · Vitest · Testing Library

Tools: Git · GitHub · VS Code · Cursor · Android Studio

Building useful software.
Deepening backend, infrastructure, and applied-AI engineering.
Designing cleaner, faster, more practical products.