SUMMARY:

• Around 7+ years of IT experience in software development and Over 4+ years of experience in Android development, testing and deployment in both consumer and enterprise based mobile applications and worked on diverse technologies such as PHP, Java, HTML4/5, and CSS/CSS3 & JavaScript.
• Strong understanding OOP (object oriented programming) concepts such: classes, objects, encapsulation, polymorphism, inheritance, implementation, and interfaces.
• Strong understanding of the Activity’s lifecycle and the uses of its methods.
• Proficient in designing and developing UI/UX components focused on customers necessities.
• Experienced in architecture design implementing Patterns Design such: Singleton, MVC (Model - View-Controller), MVP (Model-View-Presenter) and Observer.
• Experience in creation of Use, Class and Sequence UML diagrams.
• Extensively used Android Studio 2.x/3.0.
• Strong in implementation of Android Intents (Explicit and Implicit)
• Specialist in communication and sending data between activities and fragments.
• Able to use serialization libraries to bring both messages or data through each activities
• Experienced implementing Google Maps APIs like Google Directions API to draw all the necessities points to reach a place.
• Proficient in getting current location of devices through Google Maps Libraries
• Strong understanding and implementation of Material Design Guidelines and Metrics.
• Wide use of Android SDK components such: Activities, Fragments, Intents, Services, Shared Preferences, SQLite database, Broadcast Receiver.
• Proficient in designing of complex views (layouts) based on XML.
• Experienced configuring and implementing Payments APIs such: PayPal API, PayU API, CloverGo API.
• Clear understanding of the different PayPal payments schemes.
• Strong understanding of use and behavior of Android adapters.
• Experienced designing online/offline schemes.
• Expertise in designing, implementing and supporting complex database schemas for data storage and retrieval using SQL and SQLite.
• Proficient in persistent storage using: Files, Shared Preferences and SQLite database.
• Experienced working with Android Libraries such: App Compatibility, Play Services, Firebase, Android Volley, Retrofit, RxJava, RxAndroid, Gson, Picasso and jUnit.
• Strong implementing Android SDK views such: RecyclerView, CardView, ViewPager, NavigationView, Bottom Sheets, Floating Button.
• Experienced sending both SMS and Email messages
• Expertise in developing both consumer and enterprise applications for tablets and mobile devices.
• Experienced implementing web servers using Apache or Tomcat.
• Strong using interfaces to consume API REST such: Android Volley and Retrofit 2.x
• Experienced in consumption of Files (images, databases) and JSON objects from REST APIs responses.
• Experienced testing REST APIs using Postman.
• Experienced with unit testing using jUnit and Mockito libraries.
• Maintain the code quality, organization and optimization for a better behavior.
• Hands on experience in deployment and publish android applications on Google Play market.
• Motivated highflier with excellent communication skills, admirable presentation, skills, efficient requirement gathering ability and effectively convey them to others members in the team.

TECHNICAL SKILLS:

AndroidAll Platforms: (Gingerbread, Ice Cream Sandwich, Jelly Bean, KitKat, Lollipop, Marshmallow, Nougat)

Libraries: Firebase, Android Volley, Retrofit, Gson, Picasso, RxJava, RxAndroid, PayPal API

Programming Languages: C, Java, C#.NET, PHP, JavaScript, JSON, Ajax, SQL

Operative Systems: Linux (Ubuntu Server, Ubuntu Desktop, Debian), Windows, Windows Server, Android OS.

IDE: Visual Studio, Android Studio, Eclipse, Netbeans JavaJ 2EE, JDBC

Frameworks: Entity Framework 5, Bootstrap, Materialize, SlimPHP, Jersey, Postman, Smarty (Engine Templates), jQuery

Web Servers: Apache, Tomcat

Web Services: RESTfull API JSON

Database: SQLite, MSS SQL Server, MySQL, PostgreSQL, Oracle.

Source Control: Git, Bitbucket, Source Tree, TortoiseGit

Testing Tools: jUnit, Mockito

UI/UXTools: XML, Material Design Guidelines & Metrics, HTML5, CSS3

Other Tools: Patterns Design (Singleton, MVC, MVP), Smarty, Sublime Text, Visual Studio Code

WORK EXPERIENCE:

Confidential, Texas

Sr. Android Developer

Duties and Responsibilities

• Designed local database using SQLite
• Designed and implemented the Login screen with 2-Way authentication scheme.
• Programmed the Dashboard screen.
• Implemented Retrofit 2.x as consume interface (to consume REST API).
• Designed and programmed User’s Location screen using Google Maps API
• Implemented Bottom Sheet view to display information related to the customer.
• Designed the Customer’s scheme to get the information and then deploy itself in a RecyclerView
• Designed and programmed the Inventory screen
• Designed the Inventory scheme to get the information depending on the type; if it comes from local Inventory itself makes a query and deploy; but if it comes from centralized database, an endpoint is consumed and then the information is deployed.
• Configured and implemented CloverGo API as payment system.
• Developed different resolutions screens: default, normal, large, xlarge.
• Implemented the SQL concept pivoting to match all products with its genetic properties.

Confidential

Sr. Android Developer

Duties and Responsibilities

• Implemented a virtual server to allocate web services; this web server uses Linux Debian and is mounted over VirtualBox.
• I designed logical flow to show how it works.
• Programmed the web services such: Retrieve Password, Login, Order, Truck’s Details, Checklist and Sign; using PHP language.
• Created UML diagrams such: Use Case and Sequence to show how it works.
• Configured an Apache Server over the virtual operative system.
• Designed and implemented the local database; using PostgreSQL. This database replicates the information stored in to the production database (In MSS SQL Server). Using Linked Server property.
• Implemented MVC patter design to define the architecture of the application.
• I designed all the screens using XML.
• Programmed the feature that refers to read QR codes.
• Used ADODB as database interface to store generated data into the remote database.
• Configured NO-IP account to publish web services.
• Enabled port forwarding to allow external devices consume web services.
• Created different screen resolutions because it was focused on tablet devices.
• Implemented Dialog Alert to request the truck’s ID order.
• Designed and programmed both: offline/online modes.
• Implemented RxJava and RxAndroid to implement a new web to consume a web service without block the UI main thread.

Android / Web developer

Duties and Responsibilities

• Designed the logic flow that contains all the necessary screens.
• I designed the remote database and its stored procedures; using SQL.
• I programmed the Directory screen using ViewPager and RecyclerView.
• I created the adapter to bind each settlement with a linear layout(inflating each one)
• Programmed the NavigationView to make easer the navigation through different screens.
• Programmed the login screen with persistent storage; there the user data is saved to be retrieved anywhere.
• Designed and programmed the Menu screen; implementing CardView and RecyclerView
• Implemented Volley interface to consume web services related to: Location, Login, Directory (Settlements), Menu, Booking and Order.
• I designed booking scheme.
• Implemented MVC pattern to define architecture of that application
• Created all web services mentioned before; I used PHP as programming language.
• Programmed a new method to decode images from web services; I added it to my Volley interface.
• Used Material Design Guidelines looking for give itself a great appearance.
• Programmed the functionality to read QR codes.
• I had a pitch where I showed the solution to the Rustic Kitchen Manager.

Android Developer

Duties and Responsibilities

• Designed the logic flow that contains all the necessary screens.
• I designed the remote database and its stored procedure; using SQL.
• I programmed the Directory screen using ViewPager and RecyclerView.
• I created the adapter to bind each settlement with a linear layout(inflating each one)
• Programmed the NavigationView to make easer the navigation through different screens.
• Programmed the login screen with persistent storage; there the user data is saved to be retrieved anywhere.
• Designed and programmed the Menu screen; implementing CardView and a kind of Grid RecyclerView.
• Implemented Volley interface to consume web services related to: Location, Login, Directory (Settlements), Menu, Booking.
• I designed booking scheme.
• I designed all the screens using XML.
• Implemented MVP pattern to define architecture of the application
• Created all web services mentioned before; I used PHP as programming language.
• Gave maintain to the web server to keep up to date.
• Programmed a new method to decode images from web services; I added it to my Volley interface.
• I programmed the function to request android permission without go application settings.
• Used Material Design Guidelines looking for give itself a great appearance.
• Programmed Google Indications functionality (By voice)

Android Developer

Duties and Responsibilities

• I designed the messages screen to allows the user send email messages
• I programmed the functionality to call email client via implicit intent.
• I designed the local database using SQLite.
• Created CRUD for messages form.
• Programmed the function to read data from an external file.
• Implemented a navigation view component to make easer the navigation through different screens.
• Designed and programmed both modes: administrator and user.
• Implemented a third library to show videos (related to training) from Youtube.
• Designed and implemented the logic to planning a route from point A to B.

Corporativo Milac S.A de C.V, Celaya, Guanajuato, México.

Software Engineer Web Developer

Duties and responsibilities

• I was working with a professional team specialized on C#.Net technology and had the roles of: analyst, designer and programmer; as a team member.
• Designed and programmed the Login screen.
• Designed and programmed the Map Location screen
• Designed and gave functionality to the Control Panel where monitors can see information related to each truck such.
• Programmed the functionality to allow the users create complete reports with the information of the chosen truck.