Alejandro Castellanos (K2jac9)

Full-Stack Data Scientist | ML Engineer | AI Developer: Building Intelligent Systems End-to-End

Toronto, Ontario, Canada
GitHub

Agentic Cinema: The Blockbuster Hackathon

Online

Lights. Camera. Code.

$75,000 in prizes
Winners TBD
10126 participants

The WebMCP Challenge

Online

10 days for exploring what’s possible with WebMCP

$35,000 in prizes
Winners TBD
7070 participants

World’s Largest Hackathon presented by Bolt

Online

Build with AI for a shot at some of the $1M+ in prizes.

$1,037,500 in prizes
Winners announced
128329 participants

SpurHacks

Waterloo, Canada

A place to innovate.

$CAD 106,250 in prizes
Jun 20 – 22, 2025
902 participants

Developer Circles Community Challenge

Online

Completed - 2017 Community Challenge

$150,000 in prizes
Winners announced
3628 participants