Sean Aidan O'Toole
SchroederSoftwareTX@gmail.com | linkedin.com/in/seanotoole04 | github.com/schroedersoftwaretx
Education
IE University
Master in Business Analytics and Data Science
Madrid, Spain | Sept 2026 - Jul 2027 (expected)
University of Texas at San Antonio
B.S. Computer Science, Minor in Mathematics — Honors College
Concentration in Data Science and Software Engineering | Aug 2022 - May 2026 | GPA: 3.90/4.00
Skills
Languages: Python, SQL, TypeScript, R, Java, PHP, C
ML & Statistics: scikit-learn, pandas, NumPy, scipy, isotonic regression, clustering, Monte Carlo, backtesting, RAG, LLMs
Data Engineering: ETL design, PostgreSQL, MySQL, SQLite, Parquet, schema normalization, entity resolution, AWS
Web & Frameworks: Next.js, React, Node.js, FastAPI, Drizzle ORM, Nginx
Testing & CI: Vitest, Testcontainers, Testing Library, GitHub Actions
Tools: Git, Linux, Docker, Jupyter, Matplotlib
Languages (spoken): German (Intermediate), Spanish (Elementary)
Experience
Database Developer - The Experts Tribe
San Antonio, TX | May 2025 - August 2025
- Designed and maintained production PostgreSQL, MySQL, and Firebase Firestore systems supporting customer-facing applications.
- Implemented normalized schema structures and data models to support frontend integration and scalability for future feature expansion.
- Optimized SQL queries, indexing strategies, and schema design to reduce latency and improve application responsiveness.
Artificial Intelligence Research Assistant - University of Texas at San Antonio
San Antonio, TX | Oct 2024 - May 2025
- Built automated feedback loops using Llama-based LLM systems to evaluate and improve software development task output.
- Developed Python data pipelines with BeautifulSoup to collect, clean, and process GitHub repository change requests and review comments at scale.
- Improved model accuracy 60% through iterative experimentation, prompt refinement, and feature engineering on developer-feedback classification.
College of Science Mentor - UTSA College of Sciences Student Success Center
San Antonio, TX | Aug 2023 - June 2025
- Partnered with College of Sciences leadership to analyze student outcome data, translating trends into actionable strategies for improving engagement and retention.
- Led the Four-Year Plan Committee, coordinating career-readiness initiatives serving 2,000+ students across timelines, budget, and resources.
- Collaborated across departments to host events promoting academic growth and career awareness.
Projects
Summarized here. Each links to a fuller breakdown on the projects page.
World Cup Fantasy
TypeScript, Next.js 15, React 19, PostgreSQL, Drizzle, Vitest, GitHub Actions
Solo full-stack fantasy platform: 53,000 lines of TypeScript, 39 Postgres tables, 51 API routes, and 518 tests, shipped in 7 weeks.
UTSA GPT
Python, FastAPI, Gemini, Firestore, sentence-transformers, BM25
Hybrid-retrieval RAG backend that grounds Gemini on private Firestore collections, served behind an async FastAPI endpoint.
Fantasy Football Draft Analytics Engine
Python, scikit-learn, scipy, pandas, SQLite
Isotonic regression over draft-market pricing plus a Monte Carlo decision engine to surface mispriced players in real time.
Underdog Draft Analytics Platform
TypeScript, React, Vite, Python, pandas, Parquet
Point-in-time draft grading that eliminates look-ahead bias, built on a pure-function evaluation core.
Equipment Inventory Platform
PHP, MySQL, Nginx, AWS EC2
A distributed PHP/MySQL platform on AWS EC2: a 15-endpoint REST API plus a parallel ingestion pipeline for a 5.1M-row dataset.
Awards and Honors
Positions: ACM Media Officer (2023-2025), RowdyHacks Officer (2023-2025), GWG Scholar (2022-2025)
Honors: President's Scholarship (5x), President's List (4x), Dean's List, Dr. Craig Endowed Scholarship in the Sciences, Honors College, Most Outstanding Information Technology Student
Certifications: Google Data Analytics Professional, IBM AI Foundations for Business, University of Michigan Generative AI Essentials