Rowland Saer (rsaer)

Founder @Seeed

Miami, Florida, United States
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PayPal AI Hackathon

Featured

Online

Build what’s next with PayPal and AI

$67,500 in prizes
Nov 12, 2026 03:00 PM EST to submit
29626 participants

Square Developer Hackathon 2023

Online

Build new apps or app features with emerging technologies with Square

$81,000 in prizes
Winners announced
1298 participants

Square Unboxed Hackathon

Online

Build or extend an app with new features using Square’s new Bookings API release, Cash App Pay, Checkout API, or Terminal API.

$85,000 in prizes
Winners announced
806 participants

The Square Unboxed Hackathon

Online

Build apps for millions of businesses who use Square

$60,000 in prizes
Winners announced
439 participants