SUMMARY:

• Outstanding Android Developer with more than 12 years of hand - on experience in the IT field, accustomed to constantly deliver high-quality projects within small window deadlines working with various team sizes and performing in different roles that go from software support to Lead Android Developer.
• 12 Years developing software for desktop, web sites, web services and android mobile apps
• 5 Years working as Android Developer in multiple projects for various business types
• Best practices follower for requirement gathering, design, programming and maintenance
• Full stack developer skilled in the business logic (back end) and the user interface (front end)
• Highly proficient in system analysis, design, development, debugging and testing
• Able to adopt new technologies quickly such as recent third party libraries and new devices.
• Design pattern enthusiastic MVC, MVP, Singleton, Observer, Factory, Dependency Injection
• Wrote detailed technical documentation per each stage of the development cycle.
• 5 published applications on Google Play and some enterprise developments
• Android multi device developer able to work on Phones, Tablets, TV Sticks and Smartwatches
• Skilled with custom controls such as custom and compound views to match UI/UX designs.
• Included multiple screen resolutions, formats and language support
• Incorporated animations and transitions, shapes and styles using various techniques
• Wire framing implementing various UI/UX design patterns such as Material Design
• Web service consumption (REST and SOAP) with or without 3rd party libraries
• Web service development (REST and SOAP) with Java and Jersey
• Hands on development with sensors such as NFC, Bluetooth, GPS, Tilt and Camera
• Interfaced with the most popular RDBMS like Oracle, SQL Server, MySQL, DB2
• Business intelligence experience in Web, Desktop and Mobile technology online and offline
• Comfortable working both in a team or alone with no supervision required
• Led various development teams by example and managed resources with outstanding results
• Prepared class material, trained and mentored Jr developers about android best practices.
• Coordinated work with other remote members of the team to meet our goals and deliverables
• Comfortable using GitHub, Bitbucket and SVN as version control management systems.
• Familiar with Agile methodologies working with Scrum and Kanban on different project stages
• Organized teams and conducted fast, efficient and productive meetings

TECHNICAL SKILLS:

Programming Languages: Java J2EE C# XML HTML CSS

Development Environment: Android Studio Eclipse NetBeans Visual Studio

Google APIs: Google Maps Google Places Google Cloud Messaging Google Charts Google Analytics

Mobile Devices: Phones Tablets TV Sticks Smart Watches Emulators

Web Servers: IIS Glassfish Apache Tomcat JBoss

Java Frameworks: Hibernate Struts Spring JSF

Databases: SQLite MySQL SQLServer Oracle

Business Intelligence: Jasper Reports Crystal Reports

Team Management Tools: Jira HP Quality Center SVN Git Bitbucket Team Foundation Server Jenkins Project

Documentation Tools: Project Proto.io Visio JustInMind

PROFESSIONAL EXPERIENCE:

Confidential, Mount Prospect, IL

Senior Android Developer

Responsibilities:

• In charge of implementating the bussines layer for Dangerous Android permissions
• In charge of implementing MVP layers and database layer using SugarORM.
• In charge of implementing a new architecture design using Dagger, RxAndroid, Retrofit, ButterKnife and core android libraries
• In charge of implementing Gimbal SDK framework and Beacons using Android Services.
• Using Intent Services to run a process in the background to perform database updates
• Used Android Device Monitor for monitoring CPU load, heap size and memory usage
• Implemented Fabric Answers to monitor crashes and exceptions and user app analytics data.
• Implemented several design patterns such as MVP, Singleton, Iterator, Proxy and Observer.
• Refactored and redesigned multiple modules for reusability purposes.
• Tested the mobile app in various emulators to support multiple Android devices.
• Effectively used Activities, Services, Broadcast Receivers, SQLite and ps Android components.
• Gathered requirements for the application.
• Conducted code reviews with the development team following best practices and implementing the company’s naming convention
• Use of SQLite database schema to persistent data storage for every schedule
• Used navigation drawer to provide quick and easy access to the menu items.
• Designed the application with an MVP approach, setting up all the interfaces and the decoupling of the classes.
• Implemented automated testing with Robolectric.
• Implemented the use of threads on several tasks which improved the application performance.
• Used JUnit for testing the application durability and efficiency.

Confidential, New York, NY

Lead Android Developer

Responsibilities:

• Mentored junior developers by providing advice and guidance when necessaryConfigured a JIRA instance to handle mass ticketing and bugtracking.
• Contributed to the technical documentation for multiple corporate applications.
• Implemented Geo-fencing using the Google Maps API.
• Modified the app navigation by including fragments and transactions
• Utilized a Tabs and Navigation Drawers to easily switch between application activities and fragments.
• Tested the user interface implementing Espresso
• Implemented the new Material Design capabilities supported in Android L.
• Designed the database using SQLite local file and a Firebase implementation.
• Used Android Studio as IDE and all his capabilities: build Variants and social media plugins.
• Developed custom and compound views to match UI/UX specifications
• Configured Git repositories in GitHub, BitBucket and GitLab.
• Extensive use of support libraries to ensure backward compatibility with older android versions
• Implemented multi-language support using XML for simple menus and web services for content.
• Implemented secure data encryption using an SQLCipher instance
• Added android wear compatibility for actions and notifications.
• Designed custom animations for transitions between application activities
• Supported multiple screen devices using Fragments and width-aware layouts.
• Supported multiple screen resolutions to provide proper resizing across multiple devices
• Created Material Design layouts with different animations optimized for the final User Experience.
• Consumed Web Services using a Retrofit instance with a built-in GSON converter.

Confidential, Boston, MA

Lead Android Developer

Responsibilities:

• Implemented Dagger to work with a Dependency Injection environment to help with the unit testing.Secured the information and user data with an SQLCipher instance and working with HTTPS requests.
• Used Leak Canary in order to find memory leaks, optimize and improve the performance.
• Created multiple Content Providers with a native approach to handle UI asynchronous updates.
• Added the Parcelable interface for marshalling and unmarshalling setter and getter classes
• Implemented Parse to simplify mobile push notifications.
• Worked with card.io SDK for Android in order to scanning fast, easy credit card in mobile apps.
• Involved in the decision making for the technologies being used.
• Worked with ZXing library for the coupon bar code reading module
• Worked with PayPal Android SDK for making payments.
• Implemented Google Maps and Location services.
• Used Butter Knife library for implemented binding for Android views.
• Implemented Otto library for decouple different parts of the application.
• Implemented Picasso to download the image from web services.
• Helped the back end team during the design of the new Restful API for the mobile platform
• Used Crashlytics to track user behavior and obtain mobile analytics.
• Included Retrofit in order to make asynchronous HTTP requests in an anonymous callback.
• Use of support libraries to ensure backward compatibility with older Android versions.
• Performed extensive application testing with the Robolectric unit test framework.

Confidential, McLean, VA

Senior Android Developer

Responsibilities:

• Consumed SOAP web services with the KSOAP libraryWorked with Volley for consuming RESTful web services.
• Attended daily SCRUM meetings to track app development progress.
• Utilized Git as version control tool as source control management system.
• Supported multiple screen resolutions to provide resizing across multiple devices.
• Contributed to the technical documentation for this application.
• Used support libraries to ensure backward compatibility with older android versions.
• Implemented Flurry analytics for mobile app stats.
• Used Google AdMob in order to maximize the monetization.
• Used YouTube Android Player API to in corporate videos.
• Worked with JSON library to parse JSON files.
• Implemented Picasso in order to use Asynchronous networking and image loading.
• Worked with NineOldAndroids library for include animating rotation, translation, alpha and scale.
• Implemented Otto library for decouple different parts of the application
• Implemented Picasso for downloads the image and show in UI.
• Used NewRelic in order to optimize and improve the performance.
• Implemented Urban Airship for makes the push notification easy.
• Created compound and custom UI components improve the user experience
• Used Joda-Time for provide a quality replacement for java date and time classes.
• Used AChartEngine (charting library for Android applications) for financial indicators.

Confidential

Android Developer

Responsibilities:

• Use of support libraries to ensure backward compatibility with older Android versions.
• Worked extensively with fragments to improve the user navigation experience
• Included Flurry SDK for analytics proposes.
• Implemented Google Maps for geolocation purposes
• Used Google GSON to parse JSON files.
• Integrated Java Guava Libraries for string processing, concurrency libraries, I/O functions.
• Worked with Universal Image Loader library for image rendering in ListViews
• Implemented View Holder Pattern in ListView Adapters to improve the memory usage.
• Used Parcelable to serialize Java objects from activity to activity
• Supported multiple screen resolutions to provide proper resizing across multiple devices.
• Attended daily SCRUM meetings to track app development progress.
• Worked with Volley to consume REST API Web Services
• UI/UX design and wire framing with multiple tools including Balsamiq Mockups

Confidential

Android Developer

Responsibilities:

• Used of support libraries to ensure backward compatibility with older OS versions.Implemented Bolts framework for asynchronous tasks and handling complex errors.
• Utilized ActionBarSherlock library to ensure compatibility with action bars in Android
• Implemented Google Analytics for app analytics proposes.
• Worked with the Facebook API for automated login
• Implemented push notifications with Google Cloud Messaging.
• Used Google GSON to parse JSON files.
• Used fragments and tabs to improve the navigation user experience
• Implemented Sliding Menu library to provide a fluid swiping from left to right and right to left
• Implemented SQLite database for persistent data storage and fast data retrieval.
• Mentored junior developers by providing advice and guidance when necessary.
• Supported multiple screen resolutions to provide proper resizing across multiple devices.
• Tracked issued, project planning and development life cycle with Jira.
• Attended daily SCRUM meetings to track app development progress.
• Utilize Git version control tool as source control management system.

Confidential

Java Enterprise Web Developer / Android Developer

Responsibilities:

• Developed secure and reliable RESTFul web services with J2EE technologiesParticipated on the RESTful API definition
• Architected the Back end solution and participated on the technology selection process
• Influenced the relational model for the database design
• Designed SQLite database schema for implementing persistent data storage.
• Implemented RadaeePDF SDK Android for read, view and modifies PDF files.
• Mounted a WebView to render HTML content from various web sites
• Added services and AsyncTasks to download PDF files without freezing the UI
• Integrated VideoView for video promos about upcoming events
• Used 9Patch images to avoid aspect ratio changes on different screen resolutions
• Contributed to the technical documentation for this application.
• Organized the team and scheduled weekly meetings to report application progress.
• Used Jackson library for parsing JSON files coming from web services
• Created fully reusable and customizable Dialogs for various purposes
• Built custom controls for the navigation bar using compound and custom views

Confidential

Senior Web Developer

Responsibilities:

• Worked for several clients mainly dynamic public facing web sites
• Developer user interfaces implementing Ajax calls and using JavaScript, jQuery, CSS, HTML
• Launched web solutions over Apache and IIS

Confidential

Senior Web Developer

Responsibilities:

• Provided consulting services for several enterprise level web sites in front end and back end
• Programmed with J2EE frameworks such as Spring, Hibernate, Struts and JSF
• Launched web solutions over Tomcat, GlassFish, JBoss, IIS