At Accertify, I wrote production code across iOS, Android, React Native, Flutter, and the Java server behind the fraud-detection SDKs running on millions of devices. I designed and built a two-tier signature-file cache with Redis-backed invalidation, and added anti-replay validation across the server and all four SDKs.
I led the iOS SDK’s Objective-C-to-Swift conversion and its Swift 6 and async/await migration. I also re-architected the core layer and shipped behavioral analytics feeding fraud models.
I built FIDO UAF and FIDO2 passkey capabilities, along with App Attest server-side verification. For mobile security, I worked on jailbreak and Frida detection, keychain redesign, and penetration-test remediation.
At Brightmind Meditation, I built the iOS app end to end and its Node.js Lambda backend. Earlier, I built an enterprise iOS app at Sasco that cut entry time to seconds and human error by 80%, and led development of a VentureDive iOS app that grew from 15,000 to more than 140,000 users in its first year.
