Angela Lu
I'm a full-stack software engineer with 3+ years of experience in the Python and JavaScript ecosystems, recently focused on building cloud-native AI-powered applications. I co-created Chunkwise, an open-source platform that enables visual and quantitative evaluation of document chunking strategies and deploys validated strategies for RAG systems via automated ETL pipelines.
Professional Experience
10/2025 – Present
Software Engineer, Open-Source Projects
06/2023 – Present
Skills
Backend: Python, JavaScript, Node.js, FastAPI, Flask, Express.js, SQL (PostgreSQL), NoSQL (MongoDB), Pydantic, RESTful APIs, distributed systems, Frontend: React, TypeScript, Vite, Zod, AI Engineering: RAG, vector databases, embeddings, prompt engineering, tool calling, OpenAI APIs, LangChain, Chonkie, Cloud: AWS (ECS Fargate, EC2, Lambda, Batch, RDS, S3, Secrets Manager, API Gateway, IAM, CDK), DigitalOcean, Render, Infrastructure-as-Code, Tools & Practices: Git/GitHub, Docker, unit & integration test (Pytest, Jest, Vitest), WebSockets, NGINX, Linux, AI-assisted coding (Claude, Copilot, Cursor), OOP, CI/CD
Education
Columbia University, Ph.D. Candidate (ABD), M.A. & M.Phil. in Germanic Languages and Comparative Literature
09/2018 – 05/2023 | New York, NY
Macalester College, B.A. in German Studies & International Studies
09/2010 – 05/2014 | Saint Paul, MN