Abdullah Sajjad

Summary

What I did

• Developed RAALE (AI dating/marriage app) using React Native and Node.js, leveraging OTA updates and CI/CD for rapid iteration.
• Built Quatta, a gamified finance app generating a Money Health Score and daily savings/debt missions; integrated live stock data, an income calculator, and Stripe subscriptions. [App Store: https://apps.apple.com/us/app/quatta/id6755897717] [Play Store: https://play.google.com/store/apps/details?id=com.quatta.app]
• Built Dawnce on Flutter, an alarm app using Google ML Kit pose detection to verify dance moves before dismissal; integrated RevenueCat for billing. [App Store: https://apps.apple.com/pk/app/dawnce/id6760565547]
• Led frontend architecture on Altrhouse, a 3D fashion visualizer; built a neighbor-loading cache with Draco compression for near-instant mannequin previews.
• Rewrote the backend on Sharecase, a vibe-coded mentorship platform, cutting average API response time from 20s to under 1s.
• Built real-time chat, AWS liveness/face verification, and a moderation panel for Raale (AI dating); audited Callvera, a Telnyx call-routing/bidding platform.

Results

• Scaled Quatta to nearly 7,000 users across iOS and Android with 200+ active subscriptions.
• Engineered a multi-layered identity verification system for RAALE using AWS Rekognition and a custom matching algorithm that cross-references 6 profile photos against live video captures.
• Implemented custom logic to prevent anonymous users from bypassing liveness checks, significantly increasing platform trust and security.
• Cutting average API response time from 20s to under 1s (some endpoints down to double-digit ms) by removing redundant calls, restructuring the DB schema, and rewriting slow queries.