Programming Languages: Python, TypeScript, JavaScript, SQL, Bash, PHP
Data & Backend Engineering: Data Pipelines & ETL, REST APIs, Node.js, Express, Flask, Prisma, Microservices
Databases & Storage: MySQL (Master-Slave Replication), PostgreSQL, SQLite, Redis, MongoDB
Libraries & Frontend: CanvasJS, React, Zustand, TanStack Virtual/Table, Angular, Vue, CodeMirror
Tools & Infrastructure: Docker, Linux/Ubuntu CLI, Git, GitHub Actions, Cloudflare, Webpack, Vite