Eric Catalano

P.01

Zoriac

Observability platform for cron jobs and scheduled workflows. Catches the failure mode no one else does — jobs that exit 0 but never actually run. Three-line ping-based integration, cron-aware schedules with timezone/DST, duration anomaly detection, and alerts to Slack, Discord, PagerDuty, email, and SMS. No agents, no SDKs.

P.02

DAQ Box — STAR

Data acquisition system built to capture sensor data across all avionics boards during hotfires, live engine tests with real stakes. Designed, tested, and brought up the PCBs end to end. Not a simulation: actual hardware running on a live engine.

P.03

Witness

Local-first observability for browser agents. Captures DOM diffs, before/after screenshots, the exact action taken, and every LLM call with full prompt, response, and cost — all attached to the step they came from. One line to instrument an agent, then `witness view` opens a viewer on localhost. SQLite + flat files under ~/.witness/, nothing leaves your machine.

P.04

IMU Board — STAR & Berkeley Formula Racing

Inertial measurement unit breakout board built for two programs: STAR's avionics flight stack and Formula SAE vehicle telemetry. Tracked orientation, acceleration, and angular rate. Mostly debugging SPI comms and validating clean data before either board touched a real system.

P.05

BLE App + ESP32 Switch — STAR

Mobile app that sends BLE packets to an ESP32-based wireless switch. Owned both sides: the firmware running on the ESP32 and the app talking to it over Bluetooth. Built for remote actuation during hotfire operations.

P.06

RTD Board — STAR

Temperature sensing board that interfaces with RTDs to validate readings before they touch the flight stack. Critical for monitoring motor and battery thermals during hotfires. Built a dedicated board to isolate and verify the signal chain.

P.07

PT Board — STAR

Pressure transducer board for measuring chamber pressure and barometric altitude. Built a dedicated board to isolate the analog signal chain and confirm noise wasn't corrupting readings before trusting it on the rocket.

P.08

Actuator Board — STAR

Drives the servos and actuators on the rocket: fins, gimbal, recovery mechanism. Built a dedicated test board to validate drive signals and confirm every actuator works before it ever goes near the vehicle.

P.09

DreamIT

AI-native 3D game-generation engine built in Rust/Bevy with a React-Three-Fiber frontend. Working on game generation proposals and the core AI pipeline that turns prompts into playable worlds.

P.10

Cue

Context-aware alarm app that adapts to your schedule, location, and habits. Built in SwiftUI and React Native. Alarms that understand when you actually need to wake up.

P.11

VEX Robotics Team 94517X

Autonomous algorithms with sensor-driven navigation and competition-grade reliability. Balanced control logic with real-world tuning under tight deadlines.

P.12

EE143 — Custom Silicon Device Fabrication

End-to-end semiconductor fabrication on bare silicon wafer: design, photolithography patterning, doping, oxidation, metallization, and wire bonding to a packaged chip.

P.13

API Gateway — Go

Self-contained API gateway written in Go. Sits in front of a single HTTP backend and adds rate limiting, auth middleware, request logging, and routing. Minimal dependencies, production-minded.

P.14

BerkeleyFree

Web app to track empty classrooms at UC Berkeley with live schedule filters. Built with Next.js, TypeScript, and Tailwind. Never shipped. Berkeley's class schedule API proved unreliable.

P.15

Scheme Art Contest — CS 61A

Algorithmic art experiments in Scheme blending math, recursion, and functional programming. Generated visual patterns through recursive transforms and clean abstractions.

P.16

Solar + Battery Optimizer

Live web app that estimates optimal battery charge/discharge schedules to avoid PG&E 4–9pm peak rates. Uses geolocation, time-of-use logic, and user load inputs to model real cost savings.

P.17

Ants

Jan 2024 – May 2024

Recreated Plants vs. Zombies as a turn-based strategy game in Python, with insect units, AI-driven enemy waves, and a tower-defense scoring loop.

P.18

Cats

Jan 2024 – May 2024

Typing tutor in Python that measures words-per-minute and auto-corrects spelling as the user types using edit-distance heuristics over a word frequency model.