LiveEnd-to-end platform
YOOOP.
A community platform for female entrepreneurs — built end to end by one engineer.
Full social platform with seven post formats, real-time feeds, native mobile apps, and an admin panel. One engineer, production-grade.
The story
YOOOP is the scale proof in this portfolio. The brief was an entire social network for a community of female entrepreneurs — not a feed clone, but a platform where members post, host events, list jobs, announce funding calls, share moments, and co-create projects together. Seven distinct post formats, each with its own data model, feed rendering, and notification rules.
The build covers every layer a social platform needs: a NestJS backend with PostgreSQL, native iOS and Android apps built on Expo, a real-time layer over Socket.io so likes, comments, and event attendance stream live, an S3 media pipeline with image optimization, and a full admin panel for moderation and operations. Structured rotating logs and Sentry error tracking make it operable, not just demoable.
The kind of build that normally staffs a team of five — architected and shipped end to end by one engineer, which is exactly the capacity argument Catapult makes: senior judgment directing an AI-native delivery engine outbuilds a traditional team.
In the product
What makes it interesting
Seven post formats
Posts, events, jobs, funding calls, moments (stories), location check-ins, and collaborative co-creates — a community toolkit, not just a feed.
Real-time everything
Likes, comments, reposts, and event attendance stream over WebSockets — the feed moves while you watch it.
Native iOS + Android
Expo-based mobile apps with push notifications, plus a web export and a full admin panel.
Production-grade operations
S3 media pipeline with image optimization, rotating structured logs, and Sentry error tracking.