Jeffrey J (jeffreyjoh)

Berlin, Berlin, Germany
Website
GitHub
LinkedIn

Single Shot Hackathon by Berrry.app

San Francisco, CA, USA

Vibe code fun app in single shot

$1,750 in prizes
Dec 13, 2025
28 participants

SensAI Hack 2025 - San Francisco

San Francisco, CA, USA

Hack and Network with XR Bootcamp; AI Masterminds at SensAI Hack in San Francisco

$10,000 in prizes
Dec 5 – 7, 2025
151 participants

Aeternity SF Hackathon

San Francisco, CA, USA

Spend a weekend learning the Sophia smart-contract language, exploring AEpp boilerplates, and building powerful decentralized applications on the Aeternity blockchain.

$5,000 in prizes
Oct 5, 2025
28 participants

HackAIthon by Craft Ventures

San Francisco, CA, USA

Join us for a 3-day hackathon using the latest AI tools, plugins, and prompts.

$24,369 in prizes
May 15 – 18, 2023
200 participants

EthCC Hack 2022

Online

Hacking away in the City of Light towards Regen Summer.

$236,991 in prizes
Winners announced
803 participants

Cosmos HackAtom VI

Online

Enter the Cosmos and compete in this hackathon for $1,285,000 prizes in ATOM.

$1,310,000 in prizes
Winners announced
1928 participants

The Global Hack

Online

Fighting a Global Crisis - 3 billion people in lockdown. Let's hack the future so we never go through this again.

Non-monetary prizes
Winners announced
5971 participants

Diffusion 2019

Berlin, Germany

The dev con exploring convergence in DLT / IoT / Big Data / AI

€26,200 in prizes
Oct 2 – 20, 2019
530 participants