BUMP Streetwear — Steve Zeidner

A Y Combinator-backed marketplace for streetwear. In three months I delivered a native Android app that opened up the platform to Android shoppers and new countries.

Overview

BUMP is a Y Combinator-backed marketplace for streetwear. They hired me through my studio, Tinybits, to build their Android app and reach the half of their potential market they couldn’t serve on iOS alone.

What I built

A native Kotlin Android marketplace app — browsing, listings, and buying/selling streetwear — delivered in about three months.
Localization to open the marketplace to several additional countries.
A fast, native shopping experience tuned to the brand’s energetic, sneaker-culture aesthetic.

The result

In a single quarter, BUMP went from iOS-only to a genuinely cross-platform marketplace, significantly expanding both their addressable market and their international reach.