Reuben Gann, PhD
I'm Reuben. A developer and architect based in the DC area.
Currently looking for a new role after being an on-site contractor with CBP for nearly a decade in ML, physics, and software development.
About
I've served as chief architect and technical lead of large contracts within CBP. In recent roles, I worked across architecture, implementation, data pipelines, AI/ML-supporting systems, and platform modernization. I work comfortably with developers, analysts, scientists, and other subject matter experts, and I focus on building software that is reliable, maintainable, and well tested.
Skills I use on a daily basis:
Software development across frontend, backend, and data-intensive systems
Python, C#, JavaScript/TypeScript, React, SQL, Django, FastAPI, and .NET
API development and full-stack web application development
PostgreSQL, MS SQL Server, Redshift/Spectrum, AWS S3, and AWS SQS
Unit, integration, and end-to-end testing
CI/CD, Docker, Git, and performance tuning
Legacy modernization, system design, and requirements gathering
Technical leadership and mentoring developers
PKI/OAuth, Okta, and RBAC
AI-augmented development using Cursor and Codex
Experience
Technical lead and Physicist
DigitalSpec LLC
Dec 2017 - Present
Visiting Professor of Physics
Union College
Sep 2015 - Sep 2016
Postdoctoral Researcher
Georgia Institute of Technology
Oct 2011 - Aug 2015
Graduate Researcher
University of California, Riverside
May 2003 - Sep 2011
I have been working in the government space on high-tech software solutions and data science for over five years. Before that I was an academic doing basic experimental research, publishing papers, and teaching.
Chief Enterprise Architect/Machine Learning Architect
SAIC
Jul 2023 - Dec 2025
Education
My educational background is in physical sciences, which gave me a foundation to move into real-world skills in development, data science, data viz, and technical analysis.
PhD, Physics
University of California, Riverside
December 9, 2011
Masters, Physics
University of California, Riverside
March 19, 2005
BA, Physics
Claremont McKenna College
2003