Joel Ramirez

Work

Résumé available upon request.

Sample Projects
Fianna — Cyber Risk Reduction
Capstone · Spring 2023 · Harvard Extension, Information Management Systems
Threat detection and protection architecture for U.S. Sixteenth Air Force (AFCYBER) security operations centers, integrating graph-database systems and codifying enterprise risk. Projected $26.7M ROI across more than 900,000 endpoints on the Air Force Network. Collaborative final capstone.
Tweet Stocks — Streaming Sentiment Pipeline
Fall 2021 · Harvard Data Engineering & Analytics
Design, architecture, and implementation of a lakehouse data pipeline for stock-market price prediction driven by tweet sentiment. Built in Python and Scala with Spark on the Databricks platform.
Predicting the 2020 Election
Fall 2020 · Harvard Intro to Data Science
Ensemble model (linear regression, logistic classification, random forest, neural network classification) predicting 2020 U.S. election races without using any polling data. Achieved 80% classification accuracy for Senate races (R² = 0.38) and 90% classification accuracy for House races (R² = 0.78). Selected as a best-in-class project for final presentation.
NY Housing Insecurity
Spring 2020 · Harvard Statistical Modelling
Statistical analysis of the relationship between employment and eviction across New York State. Built on data from Princeton's Eviction Lab and the St. Louis Fed's FRED, using k-nearest neighbors and a broader statistical toolkit.
BlimpBot — Autonomous Aerial Platform
Spring 2015 · UofR Robotics Construction
A long-duration, autonomous, lighter-than-air platform with holonomic capabilities in three-space, driven by four unidirectional thrusters. Presented at the Hajim School of Engineering & Applied Sciences Design Day 2015.
Hackerchat — Collaboration App
Fall 2014 · HackPrinceton
Sub-36-hour hackathon build: initial UI sketches, a large part of the UX, frontend and backend implementation, API integrations, debugging, and final presentation.
Mind Input System — EEG Computer Input
Fall 2013 · Best Assistive Technology Award
A minimally kinetic computer input system using EEG brainwave data. Designed initial UML logic and UX/UI; analyzed EEG samples in Java; handled multi-system integration, virtualization, performance optimization, and Linux systems administration.
Tools
Financial Math Worksheets
bilingual · grades 6–12 · browser-only
A printable financial-math worksheet generator — percent, tax, tips, discounts, commission, interest, budgeting, and more. Pick topics and a grade band; it builds a worksheet plus an answer key that shows the worked math. Full English/Spanish toggle.
Stack Visualizer — C vs JavaScript
browser-only
An interactive, side-by-side look at how the call stack behaves in C versus JavaScript.
Passphrase Generator
browser-only · nothing leaves the page
Generates strong, readable passphrases entirely in your browser.
Noise Meter
browser-only · uses your microphone
A live sound-level meter that reads your microphone, entirely in the browser.
Education
Harvard University, Extension School
University of Rochester