Mehreen Sadia Rizvi

Overview

15 years in software engineering, the last 1 at Samsung R&D, where I lead the iOS team. Shipped 25 launches on the iOS team without a rollback. Led the migration of 54 services to SwiftUI. Most at home with Swift and XCTest.

Experience

1. Senior Engineering Manager

   Apr 2026 - Present
   Samsung R&D · 6 mo · Full-time · Chennai, India
   • Wrote the SwiftUI service that now handles 47 million requests a day.
   • Reduced cloud spend on iOS by 35% in two quarters.
   • Took crash-free sessions from 96.2% to 99.7%.
2. Senior iOS Engineer

   Aug 2024 - Apr 2026
   American Express · 1 yr 8 mo · Full-time · Chennai, India
   • Took crash-free sessions from 96.3% to 99.8%.
   • Shipped a rewrite that took build times from 44 minutes to under 6.
3. Staff iOS Engineer

   Jul 2022 - Aug 2024
   BigBasket · 2 yr 1 mo · Full-time · Chennai, India
   • Moved 91% of iOS traffic off a legacy monolith without a customer-facing incident.
   • Shipped 24 launches on the iOS team without a rollback.
4. iOS Engineer

   Oct 2020 - Jul 2022
   Amazon · 1 yr 9 mo · Full-time · Chennai, India
   • Moved 81% of iOS traffic off a legacy monolith without a customer-facing incident.
5. Senior iOS Engineer

   Oct 2018 - Oct 2020
   Flipkart · 2 yr · Full-time · Chennai, India
   • Rebuilt onboarding in SwiftUI and lifted day-one retention 6%.
   • Cut p99 latency on the iOS services from 410ms to 180ms.

No references yet.

Education

1. IIIT Hyderabad

   B.Tech, Mathematics
   2007 - 2011