Riley
Healthcare
Baby development coach. Personalized child-growth guidance, delivered daily.
Available for new projects
Andrew McCallaFull-stack engineering, shipped.
I'm a full-stack mobile engineer with deep experience across iOS, Android, and the web. Through Disrupt Logic, I've built and shipped platforms in healthcare, live streaming, web3, sportsbooks, and more — from solo zero-to-one launches to scaling apps used by millions.
Services
What I build
End-to-end engineering for founders and teams who need senior execution without the overhead of a full agency.
iOS & Android Apps
Native Swift/SwiftUI, Android, and cross-platform React Native work for production apps. From zero-to-one launches to scaling an app with millions of sessions.
Web Development
Modern, fast, responsive web builds on Next.js, React, and TypeScript. Static sites, marketing pages, and full-stack product work.
Full-stack & BaaS
APIs, auth, streaming backends, and database design. Firebase, Supabase, custom Node/Go services — mapped to what the product needs.
Technical Product Management
Scoping, roadmaps, specs, and shipping. Useful when an engineering hire isn't the right shape — but the project still needs to move.
Selected work
Products I've shipped
A mix of solo builds and senior contributions on teams shipping to millions.
Convo
AIVoice
AI companion app with voice-first, real-time conversations and custom companion creation.
Underdog Sports
SportsbookFantasy
One of the fastest-growing fantasy and sportsbook apps in the US market.
Caesars Sportsbook
Sportsbook
Live betting, streaming, and wagering at national scale.
Members 1st FCU
Fintech
Mobile banking experience for one of the largest credit unions in the Northeast.
Panda Interactive
Live streamingWeb3
Interactive live streaming platform for creators and their communities.
Got an idea?Let's build it.
Share a quick scope and timeline — I'll get back within one business day with next steps.