CS @ UChicago · B.S./M.S. ’27 · Chicago, IL

Jaimny
Ramos Ruballos

I build data pipelines, matching models and dashboards that turn messy, real-world records into decisions — from 1.8M healthcare organizations to a dozen fulfillment centers.

  • Software Engineering
  • Data Engineering
  • Data Science
  • Machine Learning
Get in touchView Resume
Portrait of Jaimny Ramos Ruballos
1.8M
healthcare NPIs matched with ML
95%
Random Forest accuracy
95%
less reporting time at Wayfair
96K+
LinkedIn profiles linked
01

Experience

Jun – Aug 2026
Boston, MA

Operations Analyst Intern · Wayfair

  • Engineered a BigQuery + Data Studio dashboard measuring employee efficiency across 12 fulfillment centers, automating manual reporting and cutting metric reporting time by 95%.
  • Maintained SQL logic across 4 dashboards as warehouse technology evolved, partnering with warehouse systems engineers on data accuracy.
  • Delivered workflow recommendations across 3 processes after an on-site visit to the Georgia fulfillment center.
BigQuerySQLData Studio
Jun – Aug 2025
Remote

Data Science / Data Engineer Intern · Alpha Sophia

  • Built ML-based matching logic grouping 1.8M healthcare organization NPIs into sites of care, reaching a 34.6% match rate.
  • Trained a 95%-accurate Random Forest classifier on engineered string-similarity and geospatial-proximity features.
Pythonscikit-learnEntity resolution
Sep 2025 – Jun 2026
Chicago, IL

Academic Grader · UChicago Computer Science

  • Graded for 85 students in MPCS 50103 (Discrete Mathematics) and 267+ students in CMSC 14200 (Intro to Computer Science II).
Discrete MathIntro CS II
Jul – Aug 2024
Remote

Data Science Intern · Alpha Sophia

  • Matched 96,000+ LinkedIn healthcare profiles to an internal provider database using pandas and recordlinkage.
pandasrecordlinkage
02

Projects

GitHub is not responding right now — these are the projects I keep in sync with it.

github.com/JRamosRuballos

No projects in this filter right now.

Geospatial data science · RMar 2025

First / Last Mile Analysis

Proposed optimal Divvy bike-share station placements across Chicago by clustering CTA bus stops where arrivals run 5+ minutes off schedule.

StrategyFeb 2026

Prism × BCG Case Competition

Go-to-market proposal expanding a fantasy-sports travel agency into Asian and European markets, plus fashion and film verticals.

03

Skills & education

Languages
PythonCSQLR
Data & ML
pandasNumPyscikit-learnrecordlinkageJupyter
Platforms
Google BigQueryData StudioGit
Coursework
Machine LearningAdversarial MLDatabase SystemsSystems ProgrammingComputer SecurityStatistical ModelsData Science I & II

Sep 2023 – Jun 2027

The University of Chicago

B.S. & M.S. in Computer Science (3+1 program)

Honors: The Gates Scholarship, QuestBridge, Odyssey Scholar

Involvement: Data Science Society (former Technical Workshop Co-Leader — SQL, R, ML), WiCyS, Student Health Advisory Board

Community: Spanish–English translator, Chicago Street Medicine

Open to new-grad & internship roles

Let’s build something data-driven.

jaimnyramosruballos@gmail.com
LinkedInGitHubResume PDF