Joseph Mcallister
Co-Founder & CTO at MouseCat (YC W26)
New York, New York, United States
Summary
👤
Senior🎓
Top SchoolJoseph Mcallister is a founder-turned-engineering leader with a decade of experience building scalable ML and backend systems at startups and hyperscale companies. As Co-Founder & CTO of MouseCat and former Tech Lead on Coinbase’s Feature Platform, he shipped high-throughput feature infrastructure, automated model refresh pipelines, and measurable improvements to risk models that power compliance and recommendation systems. He previously co-founded and architected Roo Storage (acquired) and led platform efforts that enabled rapid growth in logistics and bookings during COVID-19. Comfortable across frontend, backend, and data/ML stacks, he blends product intuition with hands-on execution—having implemented everything from Angular and Node.js apps to Kafka-driven services and feature stores. Based in New York and a Cornell CS major and varsity tennis captain, he pairs entrepreneurial grit with team leadership and an unusual track record of applying ML infrastructure to mission-critical risk problems.
9 years of coding experience
6 years of employment as a software developer
High School, High School at Mary Institute and St. Louis Country Day SchoolBachelor's degree Computer Science, Bachelor's degree Computer Science at Cornell University
Stackoverflow
1reputation
0reached
1answer
0questions
Github Skills (23)
angular8
cli8
nintendo-ds7
apple27
sega7
gameboy-advance7
typescript7
gameboy7
jinja27
flask6
libretro6
sdcc6
backtrader6
hubspot-api6
matplotlib6
Programming languages (5)
Github contributions (5)
joseph-mcallister/tennis-data-aggregator
Apr 2020 - May 2023
Node.js Typescript server that retrieves and stores junior tennis data in a SQL database through a combination of REST requests and screen scraping.
Contributions:115 pushes, 2 branches, 4 comments in 3 years
scrapingutrstorestennistypescript-server
joseph-mcallister/joseph-mcallister.github.io
Jan 2020 - Mar 2023
Joe McAllister's Personal Website
Contributions:2 PRs, 34 pushes, 3 branches in 3 years 3 months
joejavascriptreact
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