Jonathan Demaagd Email & Phone Number

Seatac, Washington, United States

Effortlessly navigate your travel journey with the Alaska Airlines app. From booking flights and selecting seats to streamlined airport experiences with mobile check-in, the app keeps you informed. Receive real-time updates on flight details, gate changes, and delays, and seamlessly share your itinerary. Utilized Android Jetpack Core components for fundamental building blocks, ensuring robust app development.Designed and implemented the app's architecture using Android Architecture Components, emphasizing scalability and maintainability.Integrated Firebase for real-time data synchronization, authentication, and cloud messaging, enhancing app functionality.Implemented VersionedParcelable for efficient Parcelable structures, optimizing data transfer within the app.Employed annotations for metadata and code generation, streamlining development and ensuring code integrity.Developed and customized UI widgets using Android Jetpack Widgets, enhancing the user interface.Ensured compatibility across Android versions using AppCompat, providing a consistent user experience.Integrated GCM for seamless push notifications and real-time communication.Utilized AndroidX Activity for modern and efficient activity implementations and implemented AndroidX Loader for efficient and asynchronous data loadingManaged activity saved state for optimal user experience during configuration changes.Employed core utilities from the Support Library for enhanced functionality, implemented Cursor Adapter

Los Angeles, California, United States

Developed EY's Mobile Solution, enabling global access to payroll services for client employees. Users can securely log in with biometric authentication and access payroll documents on-the-go.Utilized a wide range of development tools to streamline the Android app development process and enhance productivityHarnessed the power of Android Jetpack Core to implement best practices and improve app performance and maintainabilityImplemented efficient inter-component communication within the app using Kotlin and Local Broadcast Manager.Architected and implemented robust, scalable, and maintainable Android applications using Android Architecture ComponentsIntegrated Firebase services to leverage features such as real-time database, authentication, cloud messaging, and analyticsImplemented asynchronous layout inflation for improved UI responsiveness using Kotlin and Async Layout InflaterUtilized Versioned Parcelable to ensure seamless data serialization and deserialization across different app versionsImplemented annotations provided by Android Jetpack to streamline development and improve code readabilityDeveloped rich and interactive user interfaces by leveraging various widgets provided by Android JetpackEnsured backward compatibility and consistent user experience across different Android versions using AppCompat libraryUtilized AndroidX Activity to build and manage activity lifecycle and navigation within the Android applicationIntegrated GCM for push notifications and efficient communication between server and Android devicesManaged activity lifecycle and handle configuration changes effectively using Activity Saved StateImplemented media-related functionalities using Android Jetpack Media library for seamless multimedia experiencesLeveraged AndroidX Loader to efficiently load data in the background and manage it across configuration changes.Used VectorDrawable for scalable and resolution-independent graphics in the Android application

Los Angeles, California, United States

Access the trust and investments information on-the-go with the U.S. Bank Trust & Investments Mobile app. Stay informed with account balances, transaction history, stock quotes, and market news. Exclusive to trust and investment clients, download now for secure and convenient access anytime, anywhere.Developed the app using a wide range of development tools to streamline the Android app development process and enhance productivityImplemented core components of Android Jetpack to ensure robust and efficient app development.Architected and implemented scalable and maintainable Android applications using Android Architecture Components.Implemented annotations provided by Android Jetpack to improve code quality and maintainability.Developed interactive and engaging user interfaces by leveraging various widgets provided by Android Jetpack.Ensured consistent user experience across different Android versions using AppCompat library.Build and managed activity lifecycle and navigation within the Android application using AndroidX Activity.Managed activity lifecycle and handle configuration changes effectively using Activity Saved State.Implement media-related functionalities using Android Jetpack Media library for seamless multimedia experiences.Loaded data in the background and manage it across configuration changes using AndroidX Loader.Implemented smooth transitions and animations within the Android app using Transition Support Library.Utilized collections framework provided by Support Library for efficient data manipulation.Accessed core utilities provided by Support Library for compatibility and backward compatibility.Implemented Cursor Adapter for efficient data binding between database queries and UI elements.Utilized VectorDrawable for scalable and resolution-independent graphics in the Android application.Integrated Support Library Print for printing functionalities within the Android app.Accessed core UI components provided by Support Library

Dumbo, Brooklyn

The Etsy app lets users uncover exclusive deals and personalized holiday gifts. Users can enjoy secure payments, order tracking, and direct communication with sellers. Save favorite items, explore creative inspirations, and use image search for instant product discovery, receive custom notifications for specials and new arrivals, and delve into a global marketplace offering unique art, home goods, fashion, and crafting supplies. Users can experience the extraordinary with Etsy, where every purchase tells a meaningful story.Played a pivotal role in designing and overseeing the architecture, ensuring the efficient utilization of a diverse set of technologies.Leveraged Android Jetpack Core components to provide a foundation for the app's architecture and to enhance development efficiency.Utilized Android Architecture Components to create a robust and scalable app architecture, promoting separation of concerns and maintainability.Integrated Firebase for various functionalities, such as real-time database, analytics, and cloud messaging, enhancing app performance and user engagement.Implemented VersionedParcelable for efficient data serialization and deserialization, optimizing data transfer between components.Employed Android Jetpack Annotations to streamline and enhance code readability, ensuring adherence to best practices.Leveraged IntelliJ IDEA with Kotlin for efficient development, debugging, and testing of Android applications.Utilized Android Jetpack Widgets to enhance the user interface, providing interactive and engaging elements.Ensured compatibility across different Android versions using AppCompat, providing a consistent user experience.Integrated GCM for efficient push notifications and real-time communication with the users.Utilized AndroidX Activity for modern and efficient activity implementations.Managed activity saved state for optimal user experience during configuration changes.

North Chicago, Illinois, United States

Stay on top of your treatment plan with the Complete App for HUMIRA, RINVOQ, and SKYRIZI. This personalized app offers injection and symptom logging, medication reminders, and goal tracking to support and motivate you during your treatment journey. Keep a detailed injection history, track monthly progress with the RINVOQ dose tracker, and set personalized goals. Access helpful resources, request a Savings Card, connect with a Nurse Ambassador, and submit receipts for reimbursement. With a focus on personalized care, the Complete App is designed to empower and assist users in managing their treatment effectively.Collaborated with the development team to implement Android Jetpack core, Architecture Components, and AppCompat to enhance the app's functionality and user experience.Integrated Firebase for real-time database updates, user authentication, and cloud messaging, ensuring seamless communication between the app and backend servers.Utilized Android Jetpack Widgets and Media components to create engaging user interfaces and provide rich multimedia experiences within the app.Implemented Google Cloud Messaging (GCM) to enable push notifications, enhancing user engagement and keeping them informed about important updates.Upgraded to AndroidX Activity and employed Android Activity Saved State for efficient state management, resulting in a more robust and responsive application.Integrated AndroidX Loader and Transition Support Library to optimize data loading and improve the overall transition effects within the app.Leveraged various Android Support Libraries, including VectorDrawable, Print, Document File, and Legacy components, to ensure broad compatibility and consistent performance.Incorporated Kotlin as the primary programming language, taking advantage of its concise syntax and modern features for efficient and expressive code.Integrated popular libraries like Retrofit, Dagger, Gson, Okio, ZXing, Volley, Moshi, and Joda for

Fountain Valley, California, United States

The MyHyundai app revolutionizes the way you interact with your Hyundai vehicle. Access a plethora of owner resources, schedule service appointments, and connect seamlessly to your Bluelink-enabled vehicle from anywhere. Benefit from Bluelink's Remote features with biometric authentication, allowing you to remotely start your vehicle, lock/unlock doors, activate the horn and lights, and more. Stay informed about your vehicle's status, schedule maintenance, and explore key features through user tutorials.Implemented native Android solutions that communicate with RESTful web services. Collaborated with offshore teams. Implemented VOIP functionality using native Android and VoCal VoIP SDK which uses standard algorithms for VOIP processing in a modular design. Implemented functionality with Google Cloud Messaging and Android Push Notifications. Worked on secure authorization using Authorization and Authentication tokens to restrict access. Responsible for business logic based on discrete modules with design patterns that varied with functionality (singleton, builder, proxy, visitor,) Developed modular workflows in the Android app using Activities and Fragments. Implemented Dexguard to protect the Android app from reverse engineering and hacking. Used GitHub private repositories with standard workflows as a version control software. The Android team used an Agile development process with daily scrums and bi-weekly Sprints. Refactored code to reduce the size of the code base and create more efficient, reusable code. Supported the design, development, testing, and implementation of the application. Consumed back-end services for communications through RxJava and Retrofit. Worked in different phases of the project cycle including development and testing. Use of SQLite database schema to persistent data storage for every schedule. Used Dagger library to apply binding in Android views. Worked on menu items to have a smooth transition.

San Francisco, California, United States

Documented modifications, fix, and newly incorporated feature in both back-end and front-end development.Rigorously tested and debugged the application using Robolectric, ensuring robust performance and reliability.Demonstrated proficiency across the entire mobile software development life cycle, from concept to deployment.Optimized layout rendering by efficiently managing and enhancing the view hierarchy in all resources.Implemented the Parcelable interface, facilitating swift communication of custom objects between components through Intents.Conducted thorough instrumentation testing using Espresso, employing Assertions, Matches, and Actions.Enhanced ListView scrolling performance by strategically implementing LRU Cache.Employed various development, testing, debugging, and performance benchmarking tools.Modernized the app's appearance in line with Material Design guidelines, delivering an updated and user-friendly interface.Supervised the creation of comprehensive unit, integration, and stress test cases.Collaborated closely with the back-end team to enhance the RESTful API, introducing innovative features.Developed compound views tailored to present user-specific information based on preferences.Established and managed private GitHub repositories to securely host internal code.Implemented a WebView control to integrate legacy web application functionality within the native app.Integrated Google Analytics and Flurry for comprehensive analytics, gaining valuable insights.Implemented multiple Fragments to optimize the user interface and enhance app functionality.Utilized the Eclipse IDE for efficient development and coding, ensuring a streamlined workflow.Ensured seamless form factor integration by creating multi-panel activities with Fragments, enhancing UX