SUMMARY

• 7+ years’ experience in Android development.
• 6 apps published to Play Store.
• 9+ combined years’ experience the software/IT and Android market spaces.
• Kotlin and Java programming experience.
• Knowledgeable and skilled Object - Oriented (OO) programmer.
• Knowledgeable about dependency inversion principles and created modules and components.
• Experienced in third party libraries like (Dagger, RxJava, Retrofit/Volley, Room, Volley, ViewModel, LiveData).
• Strong Android development experience with an appreciation of design, testing and backend Web Services, experience in writing custom UI components and libraries.
• Plenty of experience building rich mobile applications and conducting all the entire Software Development Lifecycle of multiple cross-over applications.
• Experience with multi-threading, integration with REST APIs, custom view animations and transitions, and producing reusable libraries.
• Passion for Test Driven Development exposure to continuous integration and continuous delivery practices, especially in an environment of weekly (or even more frequent) releases to production.
• Experience in driving the Software Development Lifecycle and successfully implement multiple projects from conceptualization, passing through published and continuously improvement code base.
• Ability to multi-task, work independently or as part of a team, and flexible in terms of work location.
• Working experience using Agile, Kanban, TDD, and scrum methodologies.
• Offshore/Remote team collaboration and management experience.
• Familiar with Wi-Fi, Bluetooth, NFC, and other short distance wireless communications protocols.
• Ability to mentor developers’ piers in new technologies industry standards.

TECHNICAL SKILLS

• Espresso
• Mockito
• Jenkins
• Circle CI
• GitFlow
• Multithreading
• Push notifications
• UrbanAirShip
• BLE
• IoT
• Google Assistance
• Google Home API
• Zeplin
• Android Jetpack
• Java
• Kotlin
• Coroutines
• Firebase
• Code Reviews
• TDD
• BDD
• Cucumber
• Calabash
• JetPack
• Fragments
• Material Design
• ContentProviders
• BroadcastReceivers
• Services
• Manifest
• Permissions
• ActivityManager
• LocationManager
• NotificationManager
• ResourceManager
• Widgets
• UI/UX
• RecyclerView
• CardView
• CoordinatorLayout
• ConstrainLayout
• HandlerThread
• Asynctask
• Thread Pool
• IntentService
• Web Services
• Http
• Https
• RESTful web services
• Certificate Pinning
• AES
• RSA
• SOAP
• Json
• XML
• Volley
• Retrofit
• HttpConnection
• OkHTTP
• Picasso
• OAuth
• Dagger2
• Dependency Injection
• RxJava
• Reactive Programming
• Butterknife
• Firebase
• Scrum
• Agile
• Waterfall
• XP
• Jira
• Bitbucket
• GitHub
• Git
• GitLab
• Room Databases
• SQLite Databases

PROFESSIONAL EXPERIENCE

SENIOR ANDROID MOBILE DEVELOPER

Confidential, Atlanta, GA

Responsibilities:

• Worked on the analysis and creation of a POC (Proof of Concept) for a Scanner Implementation of Gift Card Scanner.
• Developed POC in Android Studio based on a MVVM architecture with programming in Kotlin.
• Added "Delta Gift Card" to navigation drawer, which, when clicked opens a WebView with the link provided.
• Added "Explore Our Destination" to navigation drawer, which, when clicked opens a WebView with the link provided.
• Removed Trip Extras Code and refactored code.
• Added Omniture tracking to Amex Promo Banner on the Skymile page.
• Created Automation tests for Navigation to Delta Gift Card, Explore Our Destination, Amex Fast Action Banner, and Same Day Change.
• Ensured continuous monitoring of POD pipelines throughout the sprint using Jenkins.
• Completed unit testing and integration testing with Mockito, Espresso, and Robotium.
• Part of the release cut team for 5.10, 5.11, 5.12, and 5.13.
• Initiated the release cut scripts for 5.10.
• Mentor for the release cut of 5.11
• Ran Veracode security scan for 5.11 and 5.12.
• Fixed pipelines needed for release cuts.
• Trained Podmates on how to make an automation test.
• Trained Podmates on steps to monitoring pipelines.
• Helped new devs with their onboarding process.
• Replaced RxJava implementation with Kotlin coroutines and dispatchers to make asynchronous Network requests,
• Implemented unit testing and integration testing using JUnit, Mockito, and Espresso.
• Conducted peer reviews specific to Pod work and handled merge requests outside of POD.
• Used reactive frameworks such as RxJava, RxAndroid, RxBluetooth, and RxKotlin.
• Implemented and migrated POC into FlyDelta app.

SENIOR ANDROID DEVELOPER

Confidential, San Francisco, CA

Responsibilities:

• Implemented Timber library for tracking step-by-step debugging and created breakpoints entry and followed up with QA testers.
• Participated in Kotlin implementation code along with proper Kotlin documentation for a better onboarding process.
• Utilized Android Debug Profiler to keep track app consumption of resources like data connection, memory profiler, and CPU percentage utilization.
• Implemented relational database best practices, created Entities, Data access Object and Room database implementation.
• Migrated SQLiteOpenHelper database to Android Jetpack Architecture Component Room database.
• Worked with the QA team to ensure quality testing and identification of issues early on.
• Added extensive logging of information (log statements) to improve QA process in testing.
• Created multiple extension functions to facilitate common parsing and validation functions in several modules.
• Refactored multiple parts of the code to achieve integration with new architecture design pattern.
• Migrated from MVP approach to MVVM along with Uses Cases under 4 sprint cycles.
• Created multiple documentations for previous deprecated functions that are not part of the new MVVM architecture.
• Refactored multiple callbacks to a better asynchronous approach.
• Implemented Coroutines and Scopes to handle suspended approach and reduce memory footprint in the entire application.
• Collaborated with back-end developers to keep track and implement quick changes in API responses.
• Used DataBinding and Observables objects to abstract connection between Views and ViewModels.
• Implemented Google Pay payment system under getting tickets feature.
• Worked on Ticket Retrieval feature to facilitate the transition between accounts in multiple devices.
• Implemented Koin library for implement Service Locator pattern and reduce overhead on dependency injection.
• Refactored ListView with RecyclerView approach and multiple ViewHolders in a rebranding effort across the entire application.
• Created accessibility best practices and follow guidelines implementation like text background contrast, spacing and content description on images.
• Created step by step interaction for first time users.
• Worked with multiple libraries like RxJava, Converters like GSONConverter, and networking libraries like Retrofit.
• Utilized RxJava and RxAndroid to manage multithreading with RxJava Observables.
• Implemented automated UI tests utilizing Espresso, Mockito, and JUnit.
• Worked on functionalities like WIFI, Bluetooth, and cellular data for data transfer.
• Closely worked with UI designers on rebranding effort, assist has a technical resource on the possibilities of the rebranding having Material Design has a guideline.
• New feature implementations developed using Ktx plugin.
• Joined to Approval team, enforcing code quality using tools like Jacoco for code coverage.

SENIOR ANDROID DEVELOPER

Confidential

Responsibilities:

• Implemented PIP interaction in live features doctor-user Actions.
• Worked with several asynchronous APIs like Loader Framework and WorkManager.
• Refactored several packages from Java to Kotlin.
• Refactored asynchronous calls in the form of Asynctask class into loaders and synchronous jobs.
• Participate in several meetings to distribute workload with multiple "pods" groups.
• Interacted with several piers on different parts, running meetings with offshore and behave has point of contacts with on-site team.
• Worked with distributed version control system and interact with branching strategy.
• Created local favourite doctor’s selection to facilitate user interaction.
• Consolidate work utilizing KTX extensions to reduce the boilerplate code of finding views references.
• Rebranded user personal records to match feedback from users’ recommendations, followed Material Designs and accessibility guidelines.
• Created several companion objects to facilitate log information along with several singleton objects to reduce boilerplate code.
• Utilized debug tools for removing and easily identify crash and bugs, tools like Memory Profiler, Leak Canary and Firebase Crashlytics.
• Successfully integrated Fitness API inside of application, created permissions and runtime checks permissions.
• Worked in several user’ cases depending on permissions acceptance.
• Refactored code for improvements in saving user data related, like allergies and medications.
• Reduced crash percentage in the entire project with the implementation of immutable types and null type support.
• Worked on My Health feature and created a questionnaire to increase detection and reduce time interaction before upcoming visit.
• Rebranded UI/UX elements to increase response and make easier navigation inside of the application.
• Improvements to onboarding flow to make it easier to start a visit.
• Participated in several meetings to reduce application interaction and reduce onboarding flow.
• Created training materials and documentation for mentoring developers on new Kotlin language.
• Collaborated with language internationalization and implement string resources to make more friendly and easier locales in the app.
• Implemented UI State preservation, to reload the app in case of an unexpected shutdown.
• Researched and evaluated technologies to improve the development process and workflow.

ANDROID SPECIALIST

Confidential, Redwood City, CA

Responsibilities:

• Helped to implement Google APIs services Google slide, configured permissions account OAUTH authentication and SlidesRequestInitializer.
• Debugged JSON serialization error during parsing steps on file names, created debugged points and executed step-by-step procedures.
• Worked with UI/UX designers and implement layouts and custom views that follows required branding.
• Implemented Android Toolbar followed with Material Design followed directions from designers to match new rebranding effort.
• Facilitated visualization of file uploads and downloads to make it easier to be monitored by the user.
• Replaced old UI with NavigationView drawer, swipe tabs and material design features to build new master screen.
• Contributed with remote notifications to synchronize updates and files on local version of documents.
• Refactored background processing tasks to migrate from Android Job library to WorkManager API to adheres to power-saving feature and asynchronous one-off.
• Independently coded Connection and Operation error handling module to catch display messages to users during Bluetooth communication.
• Utilize fragments, diverse layouts, animations, material design, Compound Views, and Custom Views to fulfil user interface requirements.
• Work on offline data persistence using shared preferences and SQLite.
• Contributed code refactored on Task Center feature where improvements on background task, rebranding and visualization were put in place.
• Create Custom Views and animations as app prototype and implement Android components to specifications.

ANDROID DEVELOPER

Confidential, Pittsburgh, PA

Responsibilities:

• Closely worked with Sr Developers to get pull request approved.
• Worked with coding guidelines and security points inside.
• Defined UI transitions after reading API configuration from background implementation.
• Contributed with Zelle API implementation to offer multiple options to transfer to different accounts.
• Applied best practices to resources and layouts facilitating the contribution to locale interaction.
• Worked with multiple layouts and designs, followed closely directions from supervisors and designers to apply UI mocks.
• Code Custom views to build custom search and filter user-story, display dynamic graphs and rounded ImageView.
• Work on user story to displays accounts on the Accounts Summary screen.
• Coded under a MVP architecture design patterns, created contracts and implementations to isolate layers between components.
• Elaborated unit test and instrumented test to contributed on a code coverage percentage.
• Write Unit test cases using Mockito and DaggerMock library for inject and Presenter layers.
• Working with third party development partners and establishing clear and workable development principles.
• Establish the use of custom Threads and Handlers to work with multithreading.

Jr. ANDROID DEVELOPER

Confidential, Seattle, WA

Responsibilities:

• Implemented New Relic to record custom metrics and networking.
• Refactor unorganised spaghetti codebase into MVC architecture following SOLID principles.
• Improved search by keyword, ingredients options UI, data-parsing in coordination with other iOS developer.
• Downloaded cooking videos using DownloadManager and save it on internal phone memory.
• In corporate Facebook SDK to share cooking triumphs with friends.
• Post Cook’s profile data to backend using RestFul web-services using AsyncTaskLoaders.
• Pair program to call native C/C++ Code using NDK.
• Worked closely with the external designer team to import the assets correctly through Zeplin web platform.
• Used Android web view for loading html pages and working around cookie manager.
• Adding ACRA library to automatically post-crash reports to a GoogleDoc form.
• Fixed critical and major bugs reported by testers on JIRA in 2 weeks sprint cycle.
• Used BitBucket for source control management and continuous integration with Travis CI.

Software/Web Developer

Confidential, Santa Clara, CA

Responsibilities:

• Gathered requirements and mapped system designs.
• Wrote new functions in multiple object-oriented languages (e.g., C++, Java, etc.).
• Modified existing software programs.
• Modified scripts written in JavaScript.
• Configured and programmed ERP software.
• Programmed various custom software programs as part of development team consisting of software programmers, database designers/developers, and business process specialists.
• Configured a variety of 3rd-party software systems.
• Wrote code to perform specialized functions in association with specified program features and capabilities.
• Developed Web API functionality for data validation and back-end database communication using ASP.NET, C#, Entity Framework, and SQL Server to support the development of front-end interfaces.
• Developed Web API functionality for data validation and back-end database communication using ASP.NET, C#, and SQL Server to support the development of front-end interfaces.