App Engineer

• 3+ years iOS development experience • Strong Swift / SwiftUI experience • Experience shipping consumer apps at scale • Deep understanding of performance optimization (media-heavy apps preferred) • Experience with background tasks, file handling, and networking • Strong product intuition

Bonus:

• Experience with growth loops or marketplace products • Experience building creator tools • Experience with Flutter (we are migrating parts of the stack) • Experience working closely with ML or backend teams

Frontend • SwiftUI (primary) • Migrating parts to Flutter

Backend • PostgreSQL (Supabase) • S3 storage • Deno / TypeScript edge functions • Python ML pipelines

You’ll join a team operating at the frontier of applied AI data infrastructure.

In this role, you’ll have the opportunity to:

• Own core systems that power one of the largest human data networks in the world • Design infrastructure that directly influences what data trains next-generation AI models • Build at real scale - millions of uploads per day, adversarial environments, global contributors • Ship alongside a team that has built marketplaces, AI systems, and products used by millions

If you’re excited to move fast, build systems that matter, and help define how human data powers frontier AI, let’s talk.