Sai Charan Rachamadugu

Client: Experian
Role: Senior iOS Engineer

At Experian, played a key role in transforming the mobile user experience by migrating credit reports and score insights to dynamic, Server‑Driven UI (SDUI)–powered native screens. This modernization enabled real-time personalization, faster feature delivery, and significantly reduced dependency on app release cycles. The platform now delivers seamless access to credit reports, FICO® Score, and a suite of tools for credit monitoring, alerts, and financial improvement insights.

Key Contributions:

• Designed and implemented scalable and reusable Server‑Driven UI (SDUI) components in SwiftUI, enhancing scalability, performance, and modular design across mobile applications.
• Developed dynamic UI layers using GraphQL for flexible server‑controlled client rendering, expediting iterations without full app redeployments.
• Implemented and maintained UI automation tests using Cucumber, leveraged MockServer to simulate backend APIs for reliable test scenarios, and wrote unit tests with Quick and Nimble to improve code reliability and test coverage.
• Optimized app performance and enhanced scalability to meet increasing user demand across Experian’s credit tools ecosystem.

FitBudd is a Global SaaS platform for health & fitness coaches, enabling them to scale and help more people lead healthier lives.

Key Contributions:

• Developed WatchOS companion app using SwiftUI, enabling synchronized workouts with iPhone via WatchConnectivity.
• Designed and developed diverse workout programs, including HIIT, LISS cardio, and weight training, leveraging FirebaseFirestore for manual logging.
• Created CoreData chat store with search functionality, enhancing user experience from NoSQL database of FirebaseFirestore.

Trell is a social commerce platform enabling users to share their experiences and interests across all lifestyle categories

Key Contributions:

• Revamped app with new flows, designs, and code refactoring, enhancing onboarding flow, login module, Trell-cash rewards, and video streaming features.
• Developed video content editing and posting features for Trell, a video-based app focused on shopping, rewards, and user engagement.

RedBus is the world's largest online bus ticket booking service, serving over 25 million users.

Key Contributions:

• Developed UI programmatically using Swift, enhancing features like ticket cancellation flow, seat bookings, home screen rescheduling, and offers to improve user experience.
• Contributed to RedBus, the world's largest online bus ticket booking service, serving over 25 million users.

Philips Sonicare is a globally-used electronic toothbrush app, supporting 37 languages

Key Contributions:

• Implemented iBeacon, Bluetooth, and deeplinks features using CoreLocation and CoreBluetooth frameworks to enhance user experience.
• Earned promotion to Software Development Engineer II to recognize contributions to software projects.
• Received peer recognition for problem-solving skills in localization and asset management through Python scripts.
• Developed user registration websites and email templates using HTML & CSS for dental insurance companies, improving onboarding process.

• Integrated React-native features into native apps, enhancing user experience and functionality.
• Developed cross-platform Xamarin apps for Android and iOS using C#, streamlining app development process.