Software Engineer · AI Builder

Ethan Chang

I build AI-native products and agentic systems.

Computer science, math, and statistics at Columbia, with published work in multi-agent AI and financial language-model evaluation.

Projects

Selected work

An end-to-end pipeline for generating AI video from scratch.

  • Concept-to-cut pipeline: generation, sequencing, and assembly in one flow
  • Shots are generated and sequenced programmatically, not hand-edited
  • Deployed and running live on Vercel
  • AI
  • Video Generation
  • Pipelines
View case studyLive

LifeOS

2026

An AI-native second brain that turns content into searchable knowledge.

  • Ingests multimedia content and extracts structured insights automatically
  • Semantic search and recall over a personal knowledge base via the OpenAI API
  • Built on Next.js, TypeScript, and Supabase
  • Next.js
  • TypeScript
  • Supabase
  • OpenAI API
View case studyLive

A generative pipeline for synthetic robotics training data.

  • Physics-aware environment generation via NVIDIA Isaac Sim
  • LIDAR simulation for reality-based synthetic training data
  • Environment generation built on World Labs
  • Python
  • NVIDIA Isaac Sim
  • World Labs
View case study
View all

Experience

Where I've worked

View full timeline

Mar 2026 — Apr 2026

Software Engineer Intern

Fuse Health · Remote

Re-architected a 728-line Express monolith into 5 portal-scoped BFF modules, cutting API response times by 50–70% and hitting a 5.5x speedup on cached reads.

Jun 2025 — Aug 2025

Software Engineer Intern

Capital One · McLean, VA

Built a Python AWS Lambda pipeline that translates and deploys network policies across 1,300+ devices, auto-synced via a GitHub webhook.

Feb 2025 — May 2025

Machine Learning Engineer Intern

Anytime AI · Remote

Integrated RAG pipelines for legal document search across 100+ page filings, improving retrieval accuracy by 25%.

Publications

Research & papers

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About

More than the résumé

I studied computer science, math, and statistics at Columbia, and I spend most of my time building things and following ideas further than I probably need to.

Outside of work, I'm into restaurants, electronic music, philosophy, poker, tennis, snowboarding, and traveling.

Want to work together, or just talk shop?