Rahul Singha Roy

Mobile Platform Lead with 11+ years of experience in iOS development, owning platform architecture, delivery, and technical leadership. Operates in a player-coach model, leading greenfield initiatives and mentoring engineers, while progressing toward an Engineering Manager role.

• Technical leadership
• End-to-end delivery ownership
• Architecture and design trade-offs
• Mentoring and coaching engineers
• Cross-team and global collaboration
• Roadmap contribution and prioritization
• Risk identification and mitigation

ADP — Time Kiosk (iOS / Android) led iOS and mobile platform development for ADP's workforce management application, owning native iOS architecture and React Native integrations, delivered facial biometric authentication, platform-specific SwiftUI features, and performance optimizations in collaboration with cross-functional teams

DBS Bank — DigiBank Mobile App contributed as a Senior iOS Developer to DBS’s digital banking platform, building secure and scalable modules for account management, transfers, and investments, and applied MVVM and micro-frontend patterns to improve maintainability, performance, and customer experience

Walmart Mexico -  Worked on Walmart’s high-traffic retail iOS application, delivering core commerce features including search, cart, and order management, improved usability and performance through MVVM architecture, real-time location services, and push notification integrations

Dunkin' Brands — a mobile ordering app developed customer-facing features for Dunkin's food ordering platform, including store selection, payments, coupons, and delivery flows, integrated location services, and gift card functionality while ensuring stable, scalable mobile experiences

Wyndham Hotels & Resorts — mobile hospitality app built and enhanced iOS features for hotel booking, digital check-in/check-out, and guest services, optimized booking workflows, notifications, and location-based experiences to deliver a seamless digital hospitality journey