TECHNICAL SKILLS:

• RxAndroid
• Kotlin
• JIRA
• RxJava
• JobScheduler
• Volley
• BrainTree SDK
• VideoView
• LeakCanary
• Android Studio
• GitHub
• OkHTTP
• Git
• Mixpanel
• NDK
• Circle - CI
• Flurry
• Spork
• ReLinker
• Loaders
• Push Notifications
• Stripe
• GSON
• Sketch
• Dagger2
• Chromecast
• MPAndroidChart
• LeakCanary
• ExoPlayer
• IntentServices
• Glide
• Eclipse
• Robotium
• Retrofit
• Crashlytics
• Google Analytics
• MVP
• AndroidAnnotations
• Bluetooth BLE
• Jenkins
• Slices
• Nougat
• AndroidPhotoFilters
• Material Dialogs
• Caligraphy
• JUnit
• Timber
• Material Design
• ORMLite
• IcePick
• SpongyCastle
• Firebase
• GitLab
• Handlers
• LeakCanary
• MVVM
• EventBus
• Cipher
• JetPack
• Android KTX
• Mockito
• Dependency Injection
• Google Cloud Messaging
• Espresso

PROFESSIONAL EXPERIENCE:

Android Lead

Confidential - New York, NY

Responsibilities:

• Large Agile team including API developers, designers, iOS developers and testers
• Worked on existing large codebase in MVVM architecture with data-binding implementation
• Migrated Spanish version of the app to Kotlin using Anko, Android KTX, JetPack, coroutines, extension functions, delegate properties and null-safety checks
• Worked on RxJava2/ Retrofit to ping API calls to the back-end server and apply map, flatmap, buffer, merge, reduce and zip functional operators to JSON data
• Used Espresso for the automated UI testing recyclerview interactions and Mockito was used with Retrofit for mocking the API call(Mockserver)
• Upgraded Google in-app purchases API and GooglePay API to buy digital access to NYT Crossword and NYT Cooking
• Perform static code analysis and code review (Collaborator) got ‘Best sellers lists at the top of the Books section’ acceptance criteria
• Replaced old videoview MediaPlayer API with ExoPlayer sdk to watch exclusive NYT stories videos
• Redesigned navigation for swiping quickly across sections
• Fixed an issue where some users were not seeing images render
• Improved Android Keystore program to store cryptographic keys in a container and protect key material from unauthorised use
• Replaced MixPanel implementation with Google Firebase push notification services to send breaking news alerts

Android Architect

Confidential, Los Angeles, CA

Responsibilities:

• Mid-size team, working closely with the back-end and designers
• Communicated with web-server using Retrofit/okhttp libraries to display wide range of brands and products in custom recyclerview
• Refactored the architecture from MVP to new Architectural Lifecycle aware components using LiveData, Viewmodel and Room
• Managed OOM exceptions to improve performance using Crashlytics, Leakcanary, Android Device Monitor(DDMS), JIRA
• Upgraded existing local database from SQLite to Realm to store product list and details for offline access
• Utilised Facebook Stetho, Debug tools, Jobscheduler, Services and Android Profiler to identify issues and enhance the performance
• Made app compatible to Android O by improving the background processing limits, notification channels, battery consumption and memory
• Improved search UI to find what you are looking for and coded ‘Add to bag’ and ‘checkout’ user interface
• Added Braintree SDK and updated Stripe sdk to accept user payments at checkout for selected products
• Integrated Braze SDK base analytics library and user interface library for in-app messages, push, and the news feed
• Used Google Protocol buffers library to perform XML serialisation of data
• Work on the free/paid Subscription product flavors of the app to expose different user-stories

Senior Android Developer

Confidential, Houston, TX

Responsibilities:

• Mid-size team, Daily scrum, agile environment and working closely with iOS team
• Attended the SCRUM meeting to keep track of the current sprint
• Worked with a Model View Presenter architectural design pattern, singleton, factory, facade, builder pattern to help with the modularity and maintainability
• Updated OpenStreetMap modular tile provider system to support online and offline tile sources, overlay support with built-in overlays for plotting icons, tracking location, and drawing shapes
• Designed notifications UI and send real-time push notification for flight alerts and airport delays with MixPanel external client sdk
• Replaced old UI with NavigationView drawer, swipe tabs and material design features to build new master screen
• Used AChartEngine ChartFactory, GraphicalActivity and GraphicalView interfaces to plot flight paths
• Programmed codehaus jackson XML converter with retrofit configuration in service layer to get fight list and details
• Refactored legacy code to accommodate all new changes in data download and synchronisation strategies to Reactive code - RxJava
• Used MobileAppTracking library for attribution analytics to measure the value of advertising partners
• Incorporated device specific content-providers and build own custom content providers based on client requirements
• Write unit test cases for ’Nearby flights’ and ‘real-time flight status’ presenters using Mockito library with method interactions and spy objects
• Used Apache Commons Codec to produce Base64 encode/decode mechanism for web service communication

Native Android Developer

Confidential, Los Angeles, CA

Responsibilities:

• Mid-size team
• Work on the algorithm to compare and see bottle service pricing at different venues
• Integrated ImageViewTouch library to include zoom and pan capabilities on image view widget
• Included Google Guava library to perform caching, primitives support, concurrency, annotations, string processing and I/O functions
• Coded the network layer using Volley networking library to display venue and access bottle menus in customised listview with sticky headers
• Improved map view styles and search in any area feature
• Write functional integration testing using Robolectric in TDD manner
• Perform code analysis, optimisation and checked Android quality control using PMD, Findbugs, Checkstyle, Gradle and jaCoCo reports
• Incorporated HockeyApp SDK for alpha/beta testing, error reporting and user feedback for the app
• Simplified communication between Activities, Fragments, Threads and Services with subscriber-publisher pattern using event bus library
• Included localisation features for French and Italian versions of the application
• Used YouTube Android Player API to in corporate videos
• Applied Crashlytics to bug and app crash reporting

Android Developer

Confidential, Seattle, WA

Responsibilities:

• Small team with BDD appraoch
• 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
• 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
• 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