SUMMARY:

• Worked with an Agile/scrum team to deliver solutions on time and at high quality that conform to user stories acceptance criteria
• Followed the Planning Poker Agile estimation technique
• Migrated existing large codebase to JetPack, Architectural components, Android KTX, Slices, Paging and animation
• Emphasised on unit testing using Mockito and setup jaCoCo to check my code coverage of new code
• Worked with RSA and AES encryption algorithms and certificate pinning with Retrofit to secure sensitive user data
• Pair programed to Spending Insight tool and call native C/C++ Code using NDK
• Improved Android Keystore program to store cryptographic keys in a container and protect key material from unauthorised use
• Implemented a custom view to show a graphical representation of split between credit limit, usage and balance of a user
• Performed the network operation and raise the level of abstraction around threading for parsing external API to load list of users, payments check and login activities
• Implemented finger print authentication in an intuitive and secure fashion as a supplementary login mechanism
• Independently worked on View individual Round - Ups transactions in one tap
• Developed new modules using Kotlin language with Null safety, Extension function, coroutines, data classes, High order function, Default and named arguments features
• Performed integration for Braze SDK base analytics library and Braze SDK user interface library for in-app messages, push, and the news feed

SKILLS:

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

PROFESSIONAL EXPERIENCE:

Confidential, Overland Park, Kansas

Mobile App Developer

Responsibilities:

• Large, distributed team including on-site, offshore, and outsource moving dynamically between a number of products
• Kanban, Trello, Slack: Agile approach to tasks; Daily stand-up meetings; Emphasis on communication between teams and offices
• Closely worked with the UI/UX team to implement all designs and styles.
• Worked with several team across the project and software development life cycle. Interacted with accounts, accounts details, billing system
• Built and delivered a highly scalable and maintainable Android application
• Work closely with UI/UX team for doing Material Design and apply custom animations on views, assign proper spacing for iconography
• Created multiple services for connecting with company backend to retrieve user account details, billing, and payment
• Worked in Pair Programming strategy to reduce the learning curve on the customs process and custom SDK
• Switched roles from Driver and Navigator across several iterations in the project
• Implement Google Play Billing system and configure BillingClient and override onConsumeResponse in the MVVM design pattern
• Designed custom views and incorporated navigation icons throughout layouts to improve UI/UX.
• Implement interface classes to retrieve information from ElasticSearch API.
• Worked closely with network and backend teams to consolidate API calls, create proper documentation for parameters and retrieve format objects
• Created multiple LiveData and ViewModel objects to handling responsiveness and better user experience on configuration changes
• Used Dagger 2 and Butter Knife for dependency injection for creating a more robust and easily testable code base
• Created proof-of-concept software, engineering tools, and training/procedure documents
• Created classes for handling concurrency threads for better resources consumption
• Used Mockito, Express and Robolectric for business, abstraction and presenter layer of the app’s architecture

Confidential, San Diego, CA

Native Application Developer

Responsibilities:

• Mid-sized team of developers and designers across Android and iOS
• Rapid development: Responsible for ensuring project remains on schedule through repeated iterations of prototyping and discovery
• Write test cases and work with QA on a weekly release cycle
• Architect beta application with MVP pattern and dependency injection using Dagger
• Work one Bluetooth BLE to create short connections between devices to transfer exchange data using predefined attributes with sending advertisement packets
• Optimised bugs related to discover devices, request and transmit information from bluetooth device
• Launched Android app that maintains a 4/5-star rating in the Google Play store with 20K+ downloads
• Improved customer retention with loyalty, gamification, and geolocation features, including special offers for customers using the app in-store
• Transformed one type of data to another, reduce, map or expand streams using Rx operators and perform concurrent HTTP request using schedulers
• 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, like inserting, deleting, and reading fitness data
• Integrated MyFitnessPal SDK to allow apps access the functionality of MyFitnessPal and track users diets and exercise
• Upgraded Facebook and Twitter SDK for new features and connect to runner’s communities

Confidential, Phoenix, AZ

Android Programmer

Responsibilities:

• Collaborated with the backend team to integrate the AWS framework to increase reliability and responsiveness of real-time transit tracking information and find popular Truckstops
• Worked on location nearby agents with respect to the customer with the ability to navigate to the agent and call the agent location directly by using Google API's
• Worked with the UI team to design the appropriate icon and display for the screens with material design principles
• Developed the database wrapper functions for data staging and modelled the data objects relevant to the mobile application
• 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
• Communicated with external clients to integrate AppLovin and AppsFlyer sdk to leverage creative and custom content that engages users and boosts downloads
• Included Android-Job utility library to run jobs delayed in the background by creating JobRequest with the corresponding builder class and schedule this request with the JobManager
• Configured MixPanel API to send and receive push notifications, analytics and deep linking features
• Independently integrate OpenWeatherMap API to get current forecasts, nearby weather conditions around truck stops
• Used Volley networking library to display Real-time truck parking availability data and Truck parking status history data

Confidential, Rosemont, IL

Android Specialist

Responsibilities:

• Built app with back-end API integration to improve the customer experience and cut down on development time
• Integrated Facebook login feature, which increased app usage by ~20
• Reduced time it took for customers to order parcel by 10% during peak times with skip-the-line app feature
• Performed Automatic scheduling of network requests with transparent disk and memory response caching with standard HTTP Volley and Picasso library
• Implemented Disk-based LRU cache which specifically targets Android compatibility for accessing filesystem
• Created an interface that defines parsing functionality provided in XMLPULL V1 API
• Programmed in MVVM large codebase with focus on ViewModel for handling presentation logic
• Used Crucible for code reviews, perform git pull request in Gitflow process
• Optimize the user-story ‘Filter results by cuisine, order type and distance’
• Integrate card.io sdk to scan your credit card and PayPal sdk for payments
• Save past orders locally on the device using GreenDAO database API to allow uses to re-order with the click of a button
• Implemented system to purchase, split, and redeem coupons for partner vendors

Confidential, Overland Park, KS

Android Specialist

Responsibilities:

• Integrated Dynamixsoftware sdk for printing and com.dynamixsoftware.printhand.PAYMENT BROADCAST PERMISSION
• Worked on Apache James Mime4j MimeStreamParser, for e-mail message streams in plain rfc822 and MIME format
• Implement callback mechanism to report parsing events such as the start of an entity header, the start of a body with the SAX XML parser interface
• Implement Java CIFS Client Library (JCIFS) to implement CIFS/SMB networking protocol
• Implemented subscriber/follower system as well as an invite system (client side)
• Worked on system settings relating to Bluetooth, allow Wi-Fi Multicast reception, connect and disconnect from Wi-Fi, prevent phone from sleeping
• Communicated with Calendar AP and content providers I to read calendar events plus confidential information, read contacts, read web bookmarks and history
• Redesigned mobile UI, and implemented dynamic image sizing and support for multiple devices
• Helped deploy beta version of the app to the Play Store
• Wrote maintainable and reusable Java and C++ code with a focus on security and privacy
• Successfully deployed the app on the Android Marketplace and supported the app for different releases of Android OS
• Work independently on integration of Loopj library for asynchronous HTTP requests, handling responses in anonymous call-backs