Cristian Alberto Contreras Caselles (cacontreras-ca)

Colombia
Website
GitHub
LinkedIn

DigitalOcean Gradient™ AI Hackathon

Online

Build smarter. Ship faster. Power the next wave of AI.

$20,000 in prizes
Winners announced
2627 participants

Gemini Live Agent Challenge

Online

Redefining Interaction: From Static Chatbots to Immersive Experiences

$80,000 in prizes
Winners TBD
11892 participants

Amazon Nova AI Hackathon

Online

Build your way with Amazon Nova

$40,000 in prizes
Winners announced
13452 participants

Hack for Humanity | 2026

Online

Developing software for the environment

Non-monetary prizes
Winners announced
775 participants

RevenueCat Shipyard: Creator Contest

Online

Collaborate with creators to build their app in 1 month

$165,000 in prizes
Winners announced
7079 participants

GNEC Hackathon 2025 Fall - Compete For UN-Affiliated/NGO Internships & Prizes

Online

Create projects benefiting UNSDGs for a chance to work along UN affiliated NGOs!

$700 in prizes
Winners announced
917 participants

RevenueCat Shipaton 2025

Online

Ship apps and start making money.

$355,000 in prizes
Winners announced
51902 participants

Harnessing Copernicus Foundation Models to Decode Earth from Space

Rīga, Latvia

Exploring EO Foundation Models, Weather Forecasting Models, and EO Vision-Language Models

€5,000 in prizes
Sep 1 – 30, 2025
63 participants

Proof of Concept

Online

If you could prove any data on the internet - what would you build?

$25,000 in prizes
Winners announced
1909 participants

OpenAI Open Model Hackathon

Online

Build with gpt-oss, OpenAI’s open weight reasoning models.

$30,000 in prizes
Winners announced
8657 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
128426 participants