# William O'Connell

> Full stack web developer and game designer

Location: Alexandria, Virginia, United States
Profile: https://flows.cv/williamoconnell

I am a full-stack developer in the DC area. I've designed, developed, and published 10+ web and mobile games, and I maintain services with thousands of paying users.

## Work Experience
### Software Engineer III @ CATT Lab (Center for Advanced Transportation Technology Laboratory)
Jan 2023 – Jan 2025 | College Park, MD
Developed data visualization tools in Python and HTML/CSS/JavaScript. Set up performance tracing tools and used findings to reduce server response time by 800ms, saving hours of our users' time each month. Built a pipeline to collect, analyze, and display live robotics telemetry data with Postgres, FastAPI, and React. Led the adoption of shared services like MinIO across the lab.

### Software Developer @ Hexagram
Jan 2019 – Jan 2022
Built authoring tools for multi-platform interactive experiences. Developed applications on AWS for conversation systems, programmatic video compositing, and location-based gaming.

### Technology Intern @ Capital One
Jan 2022 – Jan 2022 | McLean, Virginia, United States
Automated/streamlined an internal process by creating new UI components (Angular) and backend APIs (Java). Performed testing and analysis on vendor software to evaluate the impact of proposed changes.

### Technology Intern @ Fidelity Investments
Jan 2021 – Jan 2021
Added features and fixed bugs for Fidelity’s ESG Pro portfolio research product. Built UI components with TypeScript, React, and Redux.

### Experience Designer @ Magnopus
Jan 2019 – Jan 2019
Prototyped apps to accelerate content creation/testing. Implemented conversation/chatbot systems.

### Web Development Intern @ new target, inc.
Jan 2017 – Jan 2017
Used Drupal and WordPress to develop sites for government agencies and nonprofit organizations, including writing custom Drupal modules, stylesheets, and JavaScript behaviors.


## Education
### Bachelor of Science - BS in Computer Science
Miami University
Jan 2019 – Jan 2023

### Thomas Jefferson High School for Science and Technology
Jan 2015 – Jan 2019


## Contact & Social
- LinkedIn: https://linkedin.com/in/williamoconnell00
- Website: https://williamoconnell.me

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Source: https://flows.cv/williamoconnell
JSON Resume: https://flows.cv/williamoconnell/resume.json
Last updated: 2026-03-29