SUMMARY

• Over 9 years of total IT experience analyzing and developing web services, web sites, desk applications and android applications
• Strong 6 years of experience with Android development using Android studio, Xamarin Studio and C#.
• Extensive 8 years of experience working with Microsoft Technologies like .NET, SQL Server, and Dynamics Nav.
• Experience understanding design patterns, architectures, coding, and maintenance.
• Experience developing Web services with WCF, Net Core and Web API for ASP web form, MVC .NET sites and mobile apps for Android.
• Web development experience with bootstrap, HTML5, JavaScript
• Good experience using Java and Kotlin for Android native apps development; used rooms to create local databases and save data from WebServices, Android X and material design for improving view implementing textinputlayout and Security crypto to secure shared preferences.
• 7 years of experience working with Android SDK
• Android development with MVVM and MVP architectures.
• Experience working with different Android UI components as ViewPager, Menus, RecyclerView and Jetpack Navigation Component
• Google Maps API for Android with markers and clusters to show teh location of important locations to teh user
• Camera for Android to take photos crop them, save, and send to a web service using Base64 code to send it within JSON Message
• Experience in control version software as GIT, Mercurial, and Team Foundation, making merge without removing code from other members of teh ream.
• 8 years of experience using C# developing with ASP.NET, MVC .NET, WCF, Web API and .NET Core.
• Strong experience using Agile Scrum methodology, while strong involvement in Requirement Gathering working directly with end user and negotiating development times and release dates.
• Experience Designing and Administrating SQL Databases with Microsoft SQL Server and Oracle according to business rules and normalization with data dictionary.
• Experience with Stored Procedures, functions, view and triggers and SQL Server mail service
• Working with local and remote teams and users with great performance delivering teh modification according to release dates agreed with user
• Experience developing and managing DB with ORM like Realm and Entity Framework
• Project architecture design experience working with team or alone to design web services and communication protocols for teh solution requested by user.
• Experience analyzing and developing software from scratch including solutions that requires mobile and web front view with documentation.
• Experience working with Telerik for .NET especially with Telerik for ASP Web Forms and MVC .NET
• User support using ticketing system attending user granting user access or permission modification
• Working with international teams in Spanish and English
• Experience working with IDE and text editors like Visual Studio, Android Studio, IDEA, Visual Studio Code, Notepad++.
• Postman and fiddler experience for Web services testing
• Experience decompiling .NET code with tools like .Net Reflector and dotpeek
• Experience working with architecture and design patterns
• Strong experience in developing and consuming SOAP and REST Webservices
• Web deployment with IIS and Docker
• Experience using SonarQube for Android and implementing teh modifications suggested by SonarQube
• Experience developing with ViewBinding and Butterknife for Android
• Experience Tracking, identifying and fixing errors with Firebase Crashlytics for Android
• Experience with multiples remotes in Android Studio, multiple flavors and build variants, themes, styles and attributes and Material Design elements for Android.

TECHNICAL SKILLS

Front End Technologies: HTML5, JavaScript, React, jQuery, CSS, Bootstrap, TelerikBack End Technologies MVC.NET, Web API, .NET Core

Mobile: Java, Kotlin, Xamarin

Architecture Patterns: Layers, MVC, MVP, MVVM

Databases: SQL Server, Oracle, SQLite, Realm, Entity Framework

Information: JSON, XML

Application Servers: IIS, Docker

Versioning: Git, Team Foundation, Mercurial, Bitbucket, GitLab

Documentation: UML

Methodology: Agile SCRUM

O.S.: Windows, Linux

IDE’s: Visual Studio, Android Studio

Design Patterns: Adapter, Decorator, Chain of Responsibility, State, Singleton, Repository

Other: Google Maps API, Retrofit, Butterknife, ZXing

PROFESSIONAL EXPERIENCE

Confidential

Android Developer

Responsibilities:

• Experience working with AndroidX and old compatibility libraries
• Experience implementing Material Design with Day Night themes creating new attributes and defining properties.
• Worked with retrofit and a Repository pattern implemented using okhttp3 interceptor
• Worked with MVP architecture using contracts
• Experience working with Google Maps API inside of an activity using clusters to show a group of markers near teh GPS location of teh technician.
• Implemented function to track localization each 5 minutes and report to a REST web service
• Implemented camera to let teh technician report their work
• Refactored code where needed, implementing SOLID principles to improve code
• Implemented Custom Menus
• Worked with ViewBinding and butterknife
• Worked with Firebase Crashlytics to track and fix errors
• Worked with flavors and build variants to create different profiles and improve APK testing and releasing.
• Designed Custom Recycler View Adapters
• Experience using SonarQube to improve software security and quality
• Worked with Junit with espresso and uiautomator to test app functionality
• Worked consuming REST web services with JSON
• Worked with GIT for Bitbucket and Gitlab both at teh same time in teh same project
• Developed personalized RecyclerView Adapters with CardView
• Developed using patterns like Builder, Singleton, State, Chain of Responsibility and Decorator
• Worked with Firebase Cloud Messaging to broadcast information to technicians
• Worked proposing solutions to teh requirements with direct communication with BA and user
• Worked with effects and transitions for expandable Recyclerview
• Worked with virtual an physical devices
• Implemented Custom Dialogs

Environment: /Technologies: SonarQube, Firebase Crashlytics, Android native applications, Android SDK, Git, Bitbucket, GitLab.

Confidential

Software Engineer

Responsibilities:

• Requirement gathering for new and old software, involved with teh users directly
• Migrated Silverlight website to ASP.NET using Telerik
• Worked with existing ASP.NET websites implementing Telerik
• Developed and modified WCF web services and Web API web services
• Worked developing MVC.NET websites from scratch
• Developed Windows services with .NET
• Worked with Service Now
• Worked with Oracle DB and TOAD for Oracle
• Analyzed and designed teh solution according to user requirements
• Worked proposing solutions to user
• Designed and created Microsoft SQL Server database from scratch using database normalization
• Created SP’s and functions for both Oracle and SQL Server
• Developed mobile applications for Android with Android Studio and Java
• Worked with Gradle
• Worked with camera and files to report damages in cars and containers
• Worked with personalized adapters
• Worked using SQLite to create teh database for an android application
• Worked with Realm to create a manage android DB
• Worked using Task to consume web services
• Worked with Navigation Drawer
• Worked with ListView and Recyclerview
• Developed personalized Adapters and Animations
• Worked with view ViewPager to switch between fragments
• Worked with fiddler to test web services before connecting mobile application
• Worked SQLite Studio to create a SQLite DB
• Worked using Git for mobile applications
• Configured Git Server
• Developed code using design patterns
• Worked with Team Foundation for .NET applications
• Worked with virtual an physical devices
• Worked with Nugget package Manager

Environment: /Technologies: ASP.NET, MVC .NET with Telerik, Web API, WCF, Oracle and Microsoft SQL Server, Android Native Applications, Android SDK, Windows Mobile applications

Confidential

Lead Software Engineer

Responsibilities:

• Managed team (3 developer) for teh mobile development division
• Worked developing MVC.NET applications, adding a permission manager module
• Developed SQL Server 2012 stored procedures and functions
• Worked with Entity Framework to import stored procedures to MVC.NET website
• Worked with LINQ to manage SP’s invocation
• Worked with Titanium Studio to add functionality to an existing android app and Xamarin Studio to develop mobile application to gather credit applicants’ information, including photo and signature
• Worked with NuGet package manager
• Helped designing Xamarin application architecture and connection with SAP
• Worked with TourtoiseHG as version control software
• Worked with SQL Server Management Studio

Environment: /Technologies: MVC.NET, Entity Framework, Xamarin, Titanium Studio, Team Foundation, Mercurial, Android SDK.

Confidential

Responsibilities:

• Decompiled ASP.NET web site because their was no source code
• Worked rebuilding ASP.NET project
• Refactored ASP.NET code with .Net Reflector to create a new project and recover company website source code
• Worked adding new functionality to website using C# and JavaScript

Environment: /Technologies: Visual Studio, SQL Server

Confidential

.Net Developer

Responsibilities:

• Worked with C/ALL and C/SIDE developing custom functionality to Microsoft Dynamics Nav 5.0
• Worked with SQL Server 2008 R2 administrating users and permissions
• Managed Dynamics Nav access and permissions for users
• Attended ticketing system to give support to users
• Analyze and develop Dynamics NAV user’s requirement according to business rules and check teh possibility of modification.
• Developed Visual Basic .Net improvements to an application that managed budget approval for purchases according to teh different amount managers can approve
• Configured SQL Server 2008 R2 email client to send automatic emails using a trigger, teh trigger checked if teh manager can or can’t approve teh budget
• Worked remote with Brazil team as at teh end my manager was based their
• Worked with Business Analyst team and halped them to solve requirements conflicts
• Worked with SQL Server Management Studio

Environment: /Technologies: Microsoft Dynamics NAV 5.0, SQL Server 2008 R2, Visual Studio 2012.

Confidential

.Net Developer

Responsibilities:

• Worked with SQL Server 2008 and Informix DB creating and modifying Stored Procedures
• Developed .NET applications with C# for airport customs management
• Worked with XML to create a Data layer that generate pseudo dynamic queries.

Environnent: /Technologies: ASP.NET, SQL Server 2008, Informics