OBJECTIVE:

• A highly dedicated and results - oriented professional with 7+ years of experience developing efficient Android mobile applications, with 6 apps published to the Play Store.
• I am an extremely logical thinker, with a passion for problem solving and a drive for quality.
• I am interested in developing new technologies and I am seeking a new contractor role as an Android Developer.

TECHNICAL SKILLS

• Kotlin
• RXKotlin
• Doze Mode
• JIRA
• Java
• RxJava
• JobScheduler
• Volley
• BrainTree
• SDK
• VideoView
• LeakCanary
• Android Studio
• GitHub
• OkHTTP
• Mixpanel
• NDK
• Circle-CI
• Firebase
• Services
• Hugo
• LoadersMultithreading
• Chromecast
• Urban Airship
• GSON
• Sketch
• Dagger2
• Bluetooth BLE
• MPAndroidChart
• Otto
• LeakCanary
• ExoPlayer
• IntentService
• IoT
• Eclipse
• Robotium
• Retrofit
• Crashlytics
• Analytics
• MVP
• Koin
• Espresso
• Jenkins
• Parceler
• Android P
• JetPack
• Material Dialogs
• Caligraphy
• JUnit
• Scrum
• JetPack
• Room
• Timber
• SpongyCastle
• Firebase
• GitLab
• Handlers
• LeakCanary
• MVVM
• EventBus
• AES/Cipher
• REST
• UrbanAirShip
• Mockito
• Dependency Injection
• GCM
• Espresso

PROFESSIONAL EXPERIENCE

SENIOR ANDROID DEVELOPER

Confidential, SAN FRANCISCO, CA

Responsibilities:

• Serving as the sole Android Developer on the team, I was responsible for communicating and coordinating with the Designer, IOS Developer, Backend teams, Analyst, and Project Manager to make the Android app work to specifications.
• Changing structure of classes from MVP to MVVM for Android guild.
• Implementing native sign-up for users within app instead of having to use web service.
• Implementing HTML strings to display hyperlinks within text views.
• Displaying new terms and conditions page to user in compliance with California law.
• Creating new layouts in accordance with design.
• Navigating between screens using a Nav Graph.
• Configuring navigation by using observers on sealed class objects.
• Passing data between classes using fragment listeners.
• API calls made using composite disposables.
• UAT testing done with Mockito.
• Unit testing done with Junit.
• Source controlled with GitHub.
• Using Analytics to log events for experiments.

SENIOR ANDROID DEVELOPER

Confidential, SCOTTSDALE, AZ

Responsibilities:

• Architected and coded user story from scratch using new Architecture components using LiveData, ViewModel and Room database.
• Created API request to generate the token request from client app and send encrypted user data with RSA/ESA asymmetric algorithm to backend.
• Took advantage of Android's jetpack's Navigation component to abstract much of the navigation logic away from fragments.
• Worked in multiple modules to ensure a separation of concerns between network, domain, and presentational logic.
• Included new Security library, part of Android Jetpack to secure streaming read and write operations using
• Conducted Unit tests utilizing MockK, Junit and InstantTaskExecutorRule to test coroutines.
• Introduced complex sealed classes to simplify a problem of receiving an array of varying responses from API.
• Performed the network operation and raised the level of abstraction around threading for parsing external API to load list of users, payments check and login activities.
• Implemented fingerprint authentication in an intuitive and secure fashion as a supplementary login mechanism.
• Performed integration for Braze SDK base analytics library and Braze SDK user interface library for in-app messages, push, and the news feed.
• Migrated Dagger2 library to Koin dependency injection library for Kotlin.
• Worked in code review first environment to reduce bottlenecks often induced by pull request processes.
• Optimized the performance of Layout hierarchies with ViewStub, mainly for those that contained views that were not used frequently.

SENIOR ANDROID DEVELOPER

Confidential, LOS ANGELES, CA

Responsibilities:

• Orchestrated and implemented complex chain and Lottie animation throughout the application.
• Created a generic custom element class that can render improved shadows on elements when material design’s card view wasn't enough.
• Downloaded and streamed workouts video into Exoplayer media UI using Jobschedulers and DownlaodManager.
• Implemented reusable accessibility extensions to ensure correct screen reader focus order in varying scenarios, such as with dynamic positioning of content on material design’s bottom sheet.
• Created a custom reusable snapping recycler view and adapter to meet acceptance criteria to ensure carousels snap at X amount of items.
• Worked with Google Fit API to upload fitness data to a central repository and authorization scopes to request user permission to work with fitness data.
• Optimized app to use Sensors API to provide access to raw sensor data streams from sensors available on the Android device.
• Used History API to provide access to the fitness history and perform bulk operations such as inserting, deleting, and reading fitness data.
• Integrated MyFitnessPal SDK to allow app access the functionality of MyFitnessPal and track users diets and exercise.
• Created and loaded privacy policy and T&C external content into WebViews.
• Replaced GCM with Urban Airship SDK to include Push Notifications, App-Invites, and In-App Purchase.

NATIVE ANDROID DEVELOPER

Confidential, DIANA BEACH, FL

Responsibilities:

• Rapid development: Responsible for ensuring project remained on schedule through repeated iterations of prototyping and discovery.
• Wrote test cases and worked with QA on a weekly release cycle.
• Built solid relationships with internal and external stakeholders.
• Coded new modules with an MVP approach, setting up all the interfaces and the decoupling of the classes for newer use cases and mock API testing.
• Included Matisse SDK to enable selection of images (including JPEG, PNG, GIF) and videos (including MPEG, MP4) and defined custom filter rules.
• Supported functionality to deploy code behind feature flags, remote configuration, experiment with A/B tests, and roll out or roll back features immediately using Optimizely sdk.
• Integrated PayPal SDK to receive a one-time payment from customer's PayPal account or payment card (scanned with card.io).
• Used gRPC library to support bi-directional streaming and fully integrate pluggable authentication with HTTP/2-based transport.
• Independently worked on the specific paid product flavor which can change or update order anytime.
• Created a chain of nested GSON custom deserializers to manage a tempermental API returning values of more than a single type.
• Involved with addressing internal and external issues raised as well as general bug bashing.
• Implemented Constraint Layouts to improve the layout performance and increase the UI layout readability.
• Removed Retrofit callbacks with asynchronous RxJava to send a Get, Post, Update HTTP request to backend to display 1000 top brands of pet food and supplies in custom ListView.
• Collaborated with the backend team to integrate the AWS framework to increase reliability and responsiveness of real-time transit tracking information.

ANDROID DEVELOPER

Confidential, SANTA MONICA, CA

Responsibilities:

• Worked existing clean code architecture in MVP and created shopping module, add-to-basket module, and customer profile module.
• Worked closely with UI/UX team for doing Material Design and applied custom animations on views and assigned proper spacing for iconography.
• Created multiple services for connecting with company backend to retrieve user account details, billing, and payment.
• Implemented Google Play Billing system and configured BillingClient and override on ConsumeResponse in the MVVM design pattern.
• Included DaggerMock testing library to test Dagger components in Unit test cases in TDD manner for presentation layer.
• Programmed modules, components, scopes to inject view models and network objects using Dagger Creational pattern.
• Replaced Volley library with RxJava, Retrofit library to make asychrous API calls to get user-profile and monthly stats data in custom view.
• Added custom deep links that the user will be sent to if the app is already installed and leveraged the power of Google Services to send invites to friends.
• Enable Google Pay to process payments from users, integrate Payment data cryptography for merchants and use sample tokens to test integration.
• Performed AIDL and defined the programming interface that both the client and service agree upon to communicate with each other using interprocess communication (IPC).

ANDROID DEVELOPER

Confidential

Responsibilities:

• Launched Android app that maintains a 4/5-star rating in the Google Play store with 20K+ downloads.
• Included Android-Job utility library to run jobs delayed in the background by creating JobRequest with the corresponding builder class and scheduled this request with the JobManager.
• Worked on Jsoup Java HTML Parser library to use DOM, CSS, and jQuery-like methods and implemented the WHATWG HTML5 specification, and parsed HTML to the same DOM.
• Utilized advanced functions of the Java software development kit (SDK) to optimize the flexibility of apps to different mobile devices.
• Introduced Observable Custom Elements that took advantage of live data in the codebase.
• Worked in Pair Programming strategy to reduce the learning curve on the customs process and custom SDK.
• Worked on custom markers, updated Google maps v2 to v3 and geo-location-based features to search the nearest match.
• Improved the user experience, Realtime App Analytics, and Conversion Funnels using Appsee SDK.
• Utilized Facebook Stetho, Charles Proxy API, Memory profiler, HierarchyViewer and Android Profiler to identify issues and enhance the performance.
• Created module to code the user-story 'make a quick connection with ladies and guys nearby'.