Joseph Saldivar
Data Scientist • Software Engineer • AI Enthusiast
About Me
Hello! I’m a UC Berkeley Data Science grad who learns by building. I developed TrackGraph, a full-stack web app that turns Spotify listening history into interactive insights/visualizations—React/D3 on the frontend and a Python API on AWS (App Runner, S3/CloudFront, Docker). I care about clean data models and fast, iterative delivery. I’m currently enhancing AI systems at Data Annotation while looking for Software Engineering or Data roles where I can contribute immediately and keep leveling up.
👉 Check out the app and my other projects below.
Projects
TrackGraph
Interactive, full‑stack visualizer for Spotify listening history. Built with FastAPI, React, and D3.js to surface trends, habits, and exploration paths with a clean, modern UI and AWS‑backed deployment.
TrackGraph Observability
Infrastructure-as-code telemetry stack powered by Pulumi. Provisions AWS App Runner, Prometheus, Grafana, CloudFront, Lambda log processing, and S3 storage so TrackGraph ships with production-grade monitoring.
Database Engineering
End‑to‑end database system for Cal Field Hockey: BCNF‑normalized schema (62 tables), synthetic data generation, analytics tooling, and an ML pipeline for player ranking—replacing spreadsheets with reliable, queryable infrastructure.