December 12, 2015


High School students with some programming experience as well as those who have never programmed.


A day of learning, coding and building. Learn from our mentors and in our workshops. Bring a team or form one when you get here.


def hacks("Winter",2015): December 12, 2015


Facebook, NY

Our Judges

Moisey Uretsky, Cofounder, DigitalOcean

Andrew Glenn, VP Engineering, Betterment

Sean MacIsaac, CTO, Yext

Schedule (tentative)

8:15Check in
9:00Workshop 1
9:30Project pitches
9:45Workshop 2 / hacking
10:15Workshop 3 / hacking
5:00Judging begins
6:00Dinner / Demos

Applications are now open

def hacks("Winter",2015): is at capacity

Please fill out the application to add yourself to the waiting list

Engage in an active CS community.

Meet people like yourself from around the city. Connect with coders of all experience levels.

Expand your CS skillset.

Learn new skills in our workshops and from fellow hackers.


More information and rules can be found here.

To Apply

Fill out the form here.

Have Questions?

Email us at:

Program Cost

def hacks() is a free hackathon but you're always welcome to make a tax deductible donation at and if you'd like to help sponsor the event, email us.

Our Sponsors: