SUMMARY

• Android development experience: 7+ consecutive years.
• Android apps published to Play Store: 6
• Applied combined Android and Data Science technology skills to an Android project involving software technology modifications to an app gallery hub.
• Multithreading and memory management specific to mobile devices.
• Proficiency in Java, Kotlin, XML, JavaScript programming languages.
• Experienced in full software development lifecycle (SDLC) phases.
• Computer programming background with OOP experience and functional programming.
• UI/UX design experience with Google guidelines and APIs which include material design.
• Experience with Firebase cloud messaging, Firebase Realtime database and Authentication
• Experience in gathering requirements, documentation, analysis, specification, coding, testing, deployment (SDLC).
• Experience in OOP using Java and Kotlin programming languages.
• Experience with translating Zeplin designs into Android application implementations.
• Strong problem - solving skills, analytical and interpersonal skills in organization attention to detail, computer proficiency and ability to work collaboratively in a fast-paced environment.
• Programming compiling and debugging in Windows and Mac OS environments.
• Continuous growth in adopting new technologies as well as skills
• Experience with Android Jetpack components (LiveData, ViewModel, Room etc)
• Experience with RESTful API consumption with OkHttp, Retrofit, RxJava
• Dependency Injection experience with Dagger1, Dagger2 and ButterKnife
• Android DataBinding with MVVM architecture.
• Android animations, Custom Views, CompoundViews handling multimedia.
• Image resource management with Glide, Picasso and AsyncTask
• Experience with Android application Components (Activity, Fragments, Services, ContentProviders, BroadcastReceivers)
• Displaying list information using ListViews and RecylerViews usinfg the ViewHolder pattern.
• Android views and view groups (Button, FrameLayout, ImageView, TextView, Constraint Layout)

TECHNICAL SKILLS

Data Persistence: Shared Preferences, Internal Storage, External Storage

Project Management: Slack, Trello, Skype Business, Confluence, Jira

IDEs: Android Studio, Visual Studio, Eclipse

Cloud Services: Amazon Web Service (AWS) Firebase Cloud Messaging (FCM)

3rd-Party Libraries: Retrofit, Dagger, RxJava, ButterKnife, RxKotlin, RxAndroid, RxBluetooth

Architecture: MVVM, MVC, MVP, Builder, Factory, Singleton, Facade

Version Control: Git, GitHub, SVN, SourceTree

Databases: MongoDB, SQLite, Room DB Firebase Realtime Database

Multimedia: Glide, Picasso, ExoPlayer Fresco

API: Google API, Google Maps API, Youtube API

Scheduling: Worker Manager Pending Intent Alarm Manager Android Job Shceduler

Testing: Mockito, JUnit, Espresso, MonkeyRunner

Web Services: RxJava, Retrofit, JSON, GSON, XML

Multithreading: AsyncTask, IntentService, ThreadPoolExecutor, RxJava

Android: Android Jetpack Components, ConstraintLayout, Bottom Navaigation View, Fragments, Activity

Programming Languages: Kotlin, Java, C++, C, Python

PROFESSIONAL EXPERIENCE

Senior Android App Developer

Confidential, Atlanta, GA

Responsibilities:

• Worked with an Agile dev team to create an Android mobile variant of an existing iOS app and registered application. (The application is a register/payment/invoicing tool designed to add items to a cart and allow payment through a card reader.)
• Followed Agile/Scrum methodology with daily stand-ups and two-week sprints.
• Utilized Jira, Atlassian, Slack, and Teams as team tools.
• Worked mainly in a team of six with four developers, a scrum master, and a design member.
• Created modules and components that paralleled existing functionalities of iOS app utilizing the same backend and endpoints.
• Developed Android application utilizing MVVM architecture to ensure a modular environment.
• Programmed in Kotlin working on Android Studio IDE with Android SDK.
• Used Kotlin coroutines and suspend functions to enable asynchronous functions.
• Integrated CSDK functions to enable card payment functionalities.
• Implemented data binding via Kotlin.
• Made extensive use of LiveData and observers to react to data updates smoothly in real time.
• Collaborated with design team to properly implement end-to-end solutions, including application flow, and UI designs.
• Cross referenced with iOS designs to ensure functionality.
• Created modular pop-up with DialogFragment to enable ease of use regarding future functionalities.
• Handled errors and service calls and improved back-end communication and prevented application crashes.
• Developed responsive dropdown table with Android spinners.
• Integrated two-way flow between application and database to enable global and cross application features.
• Utilized RadioButton and RadioGroup to programmatically generate a custom bottom sheet radio selection dialog,
• Managed JIRA backlog and assisted with debugging and profiling Android app.
• Used Espresso and Mockito for testing User Interface (UI) and App functionalities.
• Utilized Android Jetpack navigation to easily implement UI flow.
• Made extensive use of Fragments to provide a responsive and modular system.
• Used Retrofit to interface API calls and retrieve information from database.
• Securely saved data to be referenced by application via SharedPreferences.
• Refactored existing UI and fragment code to be more modular to enable reuse for other components.
• Used Bluetooth low energy and Leak Canary to solve mobile networking performance issues.
• Used Git version control for Android mobile code repository.

Sr Android/Software Technology Specialist

Confidential, Santa Clara, CA

Responsibilities:

• Worked with a team that applied an Agile/Scrum methodology with daily stand ups and weekly sprints using Microsoft Teams and WeChat as team tools for effective communication among team members and peers.
• Programmed in Python for developmental purposes.
• Conducted extensive research intoTensorFlow to compare with HuaweiHiAi.
• Developed simple applications formachine learning purposes.
• Created functional UI to present relevant information from classification event.
• Overhauled application from linear layout to constraint layout.
• ImplementedRecyclerViewfunctionalities to replaceListViewusing RecyclerView adapters.
• Implemented image processing techniques to convert NHWC to NCHW image input format.
• Analyzed data obtained from applications and record them in an approachable fashion.
• Examined ASR and OCR functionalities utilizingTensorFlowandHiAi.
• Implemented end-to-end test case forHuaweiHiAi.
• Generatedsupport tickets relating to bugs and issues using JIRA.
• Created in-depth report on HuaweiHiAifindings to present internally.
• Created use cases for present kits to be discussed.
• Utilized HMS kits to create functional applications in place of equal GMS kits.
• Supported developerswith detailed information on HMS kits.
• Supported content providers by providing HMSkitsin place of GMS kits.
• Provided solutions to questions posed to owned HMS kits.
• Collaborated extensively with teammates and other team’s members to generate analysis and reports.

Sr. Android Developer

Confidential, Sunnyvale, CA

Responsibilities:

• Developed the Android grocery application using Java and Kotlin working in Android Studio IDE with Android SDK.
• Followed Agile/Scrum methodology with daily stand-ups, 2-week sprints, and used Jira, Confluence and Slack as team tools.
• Worked on a team of 10 developers including team lead and communicated with team lead extensively.
• Utilized combined MVP and MVVM architecture for Android application to better utilize modular code base.
• Implemented bug fixes to improve general Android application performance using tools such as Mockito, Espresso, JUnit, and Robotium.
• Performed data binding with Kotlin.
• Utilized Retrofit with RxJava to perform threading supported network API calls.
• Improved efficiency of Android application code through refactoring and optimization.
• Eliminated Null Point Rrexceptions through refactoring of Java Arrays into Kotlin.
• Utilized JetPack and Data Binding to integrate new features into Android Application in MVVM architecture modules.
• Simplified data management and display of most current data locally available through implementation of JetPack LiveData.
• Implemented two-way data binding to communicate user input to ViewModels which updated localized databases.
• Integrated third-party SDK for payment authentication.
• Handled service call errors and improved connection with back-end.
• Wrote Unit test cases using JUnit.
• Coded Bluetooth BLE services to scan devices and communicate attributes between them using RxAndroidBLE library.

Sr Mobile Android Developer

Confidential, Atlanta, GA

Responsibilities:

• Ensured that the design of Android application matched and exceeded stakeholder expectations through requirement gathering for Android application, Android UI design, and through prototypes of the architecture and design.
• Used Kotlin coroutines along with multithreading in project using suspend functions in Kotlin.
• Implemented newer features entirely in Kotlin which were interoperating with Java classes in the project.
• Initiated migration from Java to Kotlin across parts of the application while ensuring stable releases.
• Responsible for client interaction regarding application requirement and product specification.
• Planned, designed, and implemented end-to-end solution, including application flow and planning collaboration with the UI/UX team.
• Implemented efficient multithreaded architecture capable of processing incoming-outgoing messages from all connections without blocking.
• Developed user-friendly and distinct UI for portrait and landscape mode.
• Worked on creating and configuring android native application.
• Involved in design, development and implementation of data models
• Used Espresso library to perform automatic synchronization of test actions with the UI and UI-Automator library for UI interactions that were not within app.
• Organized and improved global widgets and UI controls.
• Created detail pages and category screens for the application.
• Utilized Retrofit and RxJava for improved asynchronous communication and threading.
• Implemented challenging top/bottom pane animation on scrolling the web content.
• Used lazy loading of heavy resources, caching images on LRU cache as well as files on worker threads for performance.
• Utilized Git version control for Android mobile application code base repository
• Followed an Agile Scrum methodology with 2-week sprints and daily scrums.
• Included some pair programing and code reviews, and mentored Java developers on Android best practices.

Android Mobile Application Developer

Confidential, Richmond, VA

Responsibilities:

• Involved in requirement gathering and designing of the application.
• Designed prototype application that used each feature gathered.
• Planned the application from the start and was responsible for interacting with team regarding project progress and technical discussions.
• Utilized efficient multithreaded architecture capable of processing incoming-outgoing messages from all connections without blocking.
• Utilized RxJava as a fundamental framework for performance improvement.
• Utilized Firebase real-time database and Firebase crash reporting.
• Worked with the Android SDK and implemented Android Bluetooth and Location Connectivity components.
• Involved in the design and implementation of UI, classes, and activities. Also worked with the design team to create the interactive UI.
• Created unique and interactive design for portrait and landscape mode.
• Utilized jUnit to test Android application functionality
• Developed application in Android Studio using Java programmatically as well as native Android and other frameworks.

Android App Developer

Confidential, Richfield, MN

Responsibilities:

• Provided architectural inputs, daily updates, sorting open issues that involve issues related to design, development and implementation.
• Responsible for consuming the REST services, getting JSON response and parsing them to get the required information.
• Involved in implementing AsyncTask for the background operations.
• Implemented an array of backlogged UI elements
• Designed screens related to Categories and Detail description for Tablet for both 7 inch and 10-inch devices by customizing views as per mockup.
• Created Master-Detail Interface for tablet implementation.
• Designed screens related to Front Page and Categories
• Involved in checking the network status before making any network call.
• Used RESTful web services to consume a web service.
• Documented in Javadoc and Confluence and used Atlassian stack for project including JIRA for tracking user stories and issues.

Android Developer

Confidential, San Francisco, CA

Responsibilities:

• Worked with the Android SDK and implemented Android Bluetooth and Location Connectivity components.
• Involved in implementing AsyncTask for background operations to reduce the load on the main thread.
• Implemented a common interface for the application making it compatible with a desktop, web or mobile.
• Worked on the navigation view to display the user profile and respond to user interaction and updating the server if views are changed
• Worked on menu items to have smooth transition while creating respective activities and fragments
• Implemented collapsing tool bar in a drawer layout to collapse the image on scrolling up
• Worked on animations in the applications like view animations.
• Used Android Studio to develop the screens for the application using MVC design pattern.
• Constructed basic views and page designs based on the XML that was being parsed
• Worked on innovative background reflecting the user account status that changes according to user's account.
• Implemented SQLite database
• Regular interaction of RESTful API design calls to populate the UI on the app using GET, PUT, POST and DELETE.
• Worked on implementing content providers to store application related data in content providers and querying data using Async Task.
• Designed the database model in SQLite.
• Worked on local data storage using Shared Preference.