Looks like you have JavaScript disabled. For the full Twine experience, you will need to re-enable it.

I have over 10 years of experience in mobile application development with strong expertise in Android development using Kotlin and Java. My experience includes Jetpack Compose, Android SDK, MVVM and Clean Architecture, REST API and GraphQL integration, Coroutines, Flow, CI/CD pipelines, Git, performance optimization, and enterprise mobile application development. I have successfully built secure, scalable, and high-performance mobile applications while collaborating with cross-functional teams in Agile environments.…I have over 10 years of experience in mobile application development with strong expertise in Android development using Kotlin and Java. My experience includes Jetpack Compose, Android SDK, MVVM and Clean Architecture, REST API and GraphQL integration, Coroutines, Flow, CI/CD pipelines, Git, performance optimization, and enterprise mobile application development. I have successfully built secure, scalable, and high-performance mobile applications while collaborating with cross-functional teams in Agile environments.

Sreeja

App Developer, Web Developer, Front-End Developer, +2





I have over 10 years of experience in mobile application development with strong expertise in Android development using Kotlin and Java. My experience includes Jetpack Compose, Android SDK, MVVM and Clean Architecture, REST API and GraphQL integration, Coroutines, Flow, CI/CD pipelines, Git, performance optimization, and enterprise mobile application development. I have successfully built secure, scalable, and high-performance mobile applications while collaborating with cross-functional teams in Agile environments.…I have over 10 years of experience in mobile application development with strong expertise in Android development using Kotlin and Java. My experience includes Jetpack Compose, Android SDK, MVVM and Clean Architecture, REST API and GraphQL integration, Coroutines, Flow, CI/CD pipelines, Git, performance optimization, and enterprise mobile application development. I have successfully built secure, scalable, and high-performance mobile applications while collaborating with cross-functional teams in Agile environments.

Available to hire

I have over 10 years of experience in mobile application development with strong expertise in Android development using Kotlin and Java. My experience includes Jetpack Compose, Android SDK, MVVM and Clean Architecture, REST API and GraphQL integration, Coroutines, Flow, CI/CD pipelines, Git, performance optimization, and enterprise mobile application development. I have successfully built secure, scalable, and high-performance mobile applications while collaborating with cross-functional teams in Agile environments.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Intermediate

Intermediate

Language

English

Fluent

Work Experience

Sr Mobile Developer (iOS / Android) at CVS

January 1, 2025 - Present

Designed and developed scalable healthcare mobile applications using Swift, SwiftUI, and UIKit; MVVM architecture; GraphQL with Apollo Client; cross-platform features using React Native with TypeScript; Android interfaces with Kotlin and Jetpack Compose; AI-powered personalization with CoreML and Azure Cognitive Services; Redux-based analytics modules; RESTful and GraphQL endpoints; automated UI and functional testing for Android with Espresso; macOS utilities to support internal teams; advanced navigation flows and real-time health alerts via WebSocket-based services.

Sr Mobile Developer (iOS / Android) at CVS Health

January 1, 2025 - Present

Designed and developed scalable healthcare mobile applications using Swift, SwiftUI, and UIKit; architected modular MVVM-based iOS layers; built reusable UI modules with Core Animation and Core Graphics; implemented GraphQL data communication using Apollo Client; developed cross-platform features with React Native (TypeScript); built Android interfaces with Kotlin and Jetpack Compose; integrated AI-powered personalization with CoreML and Azure Cognitive Services; created analytics visuals with React Native TypeScript modules; implemented RESTful APIs and GraphQL endpoints for secure authentication, prescriptions, and real-time data sync; integrated Redux for predictable app state; automated UI and functional testing for Android with Espresso; maintained macOS utilities with SwiftUI/AppKit; enhanced navigation with UIKit components; collaborated with Node.js microservices and WebSocket services for real-time health alerts.

Sr Mobile Developer (iOS / Android) at Amex

March 1, 2023 - December 1, 2024

Developed secure mobile payment and financial service apps aligned with PCI-DSS, PSD2, and GDPR; built iOS UI with SwiftUI/ UIKit; migrated legacy JavaScript modules to TypeScript for shared React Native components; created Android banking features with Kotlin following Clean Architecture; integrated with ASP.NET Core microservices for payments and card management; implemented secure local storage (Keychain, Core Data); OAuth 2.0 authentication; APNs for real-time alerts; cross-platform React Native components; GraphQL-based data retrieval for accounts and transactions; automated Android UI tests with Espresso.

Sr Mobile Developer (iOS / Android) at American Express

March 1, 2023 - December 1, 2024

Developed secure mobile payments and financial services apps aligned with PCI-DSS, PSD2, and GDPR; engineered modern iOS interfaces with SwiftUI and UIKit; migrated legacy JavaScript modules to TypeScript; designed Android banking apps using Kotlin with Clean Architecture; integrated with ASP.NET Core and .NET microservices for payments, authentication, and card management workflows; implemented secure local storage (Keychain, Core Data); supported OAuth 2.0 authentication for SDK integrations; designed GraphQL-backed account summaries and transaction dashboards; automated Android UI testing with Espresso; integrated Apple Push Notification Services (APNs) for real-time alerts.

Mobile Developer (iOS / Android) at HD Supply

September 1, 2020 - February 1, 2023

Designed scalable iOS shopping experiences using Swift and UIKit; implemented OAuth authentication; built cross-platform commerce features with React Native/TypeScript and Redux; defined GraphQL schemas and optimized queries with backend teams; leveraged Core Bluetooth for warehouse wearables and inventory scanners; implemented AI-driven product recommendations via backend ML services; designed offline support with Core Data for catalogs, carts, and order histories; developed Android interfaces with Jetpack Compose and Kotlin; practiced TDD with JUnit and Espresso; integrated .NET Core backend microservices; built reusable React Native components with native SwiftUI modules; secured APIs with token-based authentication.

iOS Developer at Liberty Mutual

September 1, 2018 - August 1, 2020

Developed secure iOS features using Swift/Objective-C; implemented MVC-based architecture; integrated HealthKit, Core Data, and secure token storage; built dashboards and mobile health features; collaborated with backend on Azure-hosted .NET microservices; implemented WebRTC video features; integrated BLE for wearables; developed cross-platform components with React Native; implemented GraphQL queries for real-time data access; supported HIPAA-aligned security and healthcare data handling.

iOS Developer at CA Technologies

May 1, 2015 - December 1, 2017

Developed secure iOS features using Swift and Objective-C; implemented MVC patterns; integrated HealthKit for health metrics; collaborated with backend to integrate .NET-based microservices; implemented real-time video with WebRTC and AVFoundation; connected with BLE devices for wearable data; built macOS companion tools with AppKit/Keychain; collaborated with Android teams on Kotlin coroutines and GraphQL data exchanges; worked with FHIR/HL7 healthcare interoperability standards.