SUMMARY:

• 8 years of experience in Client /Server, Web Applications, Mobile Applications and Windows applications using Microsoft Technologies and .NET framework.
• 4 years of extensive experience working among technologies such as Xamarin. IOS, Xamarin. Android and Xamarin Studio.
• Performed a wide variety of programming assignments of newly developed software applications, enhancements to existing applications, and other revisions to the product.
• Strong in the complete Software Development Life Cycle (SDLC) including requirements definition, design, programming / testing and implementation of major systems and involved development and deployment of many client/server systems based on n - tier, TDD and CRM etc.
• Experience in building mobile based apps using Cross platform in Visual Studio for iOS, Android and using Xamarin studio.
• Experience in Planning the Application from the wireframe level, Architecting and Implementing the mobile applications.
• Extensive experience in creating User Interface(UI) using Android SDK, iOS SDK and in using Xamarin. Forms for designing UI using framework APIs and XAML with different available layouts and controls.
• Experience in push notifications, social login and implementing barcode scanning to the application.
• Experience in integrating REST web services for Android and iOS web services.
• Performed automate testing by using Xamarin test cloud.
• Responsible for designing User Interface screens using Master Pages, jQuery, Themes, HTML, CSS, Java Script (Angular, Backbone and React) and AJAX Tools.
• Designed, modeled multi-threaded, enterprise n-tier software agent using WCF web service hosted in a Windows service, SOAP, RESTFUL. Designed WCF Service Contract for validating the user input.
• Experience in using Language-Integrated Query (LINQ), ADO.NET Entity Framework 4.0 in Silverlight 3.0/4.0 and in other .NET objects to query and retrieve data.
• Experience in designing and developing software applications with the C#, ASP.NET, HTML, CSS, XML, JavaScript, ADO.NET, WPF, WCF, LINQ and .NET framework.
• Experience in MVC (Model View Controller) architecture with ASP.NET framework and Microsoft.Net Design Patterns.
• Hands on experience in writing Stored Procedures, User Defined Functions, Triggers, Views, Joins, Query Optimization and Performance Tuning.
• Experience using Source Code Version Control Systems like TFS and Git.
• Experience in handling the performance and memory of Android App.
• Experience in developing systems using differ rent software methodologies like Agile and Waterfall.
• Profound knowledge in Unified Modeling Language (UML) to design Use-cases, Class Diagrams, Activity Diagrams and Sequence Diagrams
• Expertise in Web Services and other technologies like Web-API, XPATH, XHTML, XSL and XSLT.
• Hands on experience in reports development using SQL Server Reporting Service (SSRS) and Crystal Reports and experience in developing integration packages using SQL Server Integration Service (SSIS).
• Experience with SQL Server 2000/2005, Oracle 8i/9i and MS Access Database development, MDM.
• Proficient in T-SQL Queries, Views, Joins, Functions, SQL Stored Procedures, Database Triggers and Cursors and PL/SQL.
• Experienced in using Ajax controls(Atlas) and other Third-Party Controls (Telerik Ajax Controls).

TECHNICAL SKILLS:

Development Tools: Visual Studio 2015/2013/2012/2010/2008, Visual Web Developer Express.

Languages: C, C++, C#, VB.NET, SQL, T-SQL, PL/SQL

Microsoft Technologies: .Net Framework 4.5/4.0/3.5/3.0/2.0, ADO.NET, ASP.NET 4.5/4.0/3.5, Silverlight 3.0/4.0, MVC 3/4/5, Restful WEB API2, Razor C#, AJAX, LINQ, WCF, WPF, Web Services, Entity Frameworks.

Mobile Technologies: Xamarin Forms (Cross Platform), Xamarin. Android(Native), Xamarin. iOS(Native), Xamarin Studio(IDE), Telerik Test Studio

Scripting Languages: JavaScript, JQuery, AngularJS, Kendo UI, Knockout JS, Bootstrap, React JS

Markup Languages: HTML5, CSS3, XML, DHTML, XAML(Xamarin), XAML(WPF)

Methodologies: Agile, Waterfall

Reporting Tools: Crystal Reports, Data Base Reports, SSRS and SSIS

Version Control Tools: Team Foundation Server (TFS), Source tree, Git

PROFESSIONAL EXPERIENCE:

Confidential, Los Angeles, CA

Sr. Xamarin/.Net Developer

Responsibilities:

• Involved in developing cross platform mobile application which can run on both iOS and Windows platforms from the architecture of the application to implementing it by using Xamarin Studio.
• Extend line of business functionality with Visual Studio Tools for Office.
• Utilize a tiered pattern for Silverlight projects with WCF RIA Services.
• Involved in parsing JSON and XML files to obtain data to be used by Content Manager and Download Manager.
• Worked in agile environment with daily scrums and biweekly sprints.
• Extensively involved on the back-end side of the project mainly on download manager and content manager of the mobile application.
• Extensively worked on planning the Application and helped in creating the wireframes.
• Tracked progress through version one and communicated via team rooms in version one.
• Involved in making user stories and creating tasks to be completed in the sprint through Version One.
• Used XIB files for creating storyboards and for iOS UI experience.
• Extensively used the new feature of C 5.0 a sync and await to easily write code to perform multiple tasks simultaneously for the download manager without blocking the main thread.
• Responsible for creating Custom Renderers, Buttons, Labels, and Custom Font, as per business requirements.
• Practice MVVM design pattern for the WPF, Silverlight UX platforms.
• Included in changes to Restful API Services, to handle demand from POS server and reacted back with the required data by getting the data from the Database and used DIC.
• Involved in checking the code into the repository via GIT, Source Tree and Perforce.
• Responsible for implementing reusable client proxy component for consuming the information from the Restful API using Modern Http Client component.
• Used SQLite.NET with Xamarin. Forms and MVVM for reading and writing data to a local SQLite database.
• Used Xamarin Insights for finding and debugging issues in the app.
• Used Xamarin test cloud to automate testing.
• Used ZEBRA Crossing to implement barcode scanning features.
• Earned recognition for meeting deadlines in short amount of time, enjoyed working in a team and yet flexible to take individual responsibilities.
• Used NServicebus handles to asynchronously process the website request which will improve the performance of the website.

Environment: Visual Studio .NET 2015, .NET Framework 4.5, Xamarin Studio, XCode, Xamarin. Forms, MVVM, Xamarin test cloud, SQLite.NET, Azure Mobile Services, IOS, Android, Entity Framework

Xamarin/.Net Developer

Responsibilities:

• Involved in the SDLC phase of requirement analysis, design, development and testing.
• Creating database objects such as tables, views, stored procedures, Triggers etc.
• Analyzing the Code that was written in Older Versions of .NET Framework 4.5 and develop them in newer versions.
• Used C# in Xamarin to create native mobile application.
• Developed the independent Windows Communication Foundation (WCF) services and defined Service Contracts for specific functionality in project search module .
• Utilized ADO.Net Entity Framework technology extensively for data retrieving, querying, storage and manipulation using LINQ.
• Later, transformed to native app using Xamarin.Android and Xamarin.iOS when performance was the issue with Xamarin Forms.
• Developed Cross-Platform Mobile app using Xamarin Forms with code sharing between all platforms (Android, iOS and Universal Windows apps)
• Worked on automated UI Acceptance testing using Xamarin Test Cloud.
• Developed React JS/ .NET web application using JavaScript, ASP.NET MVC 5, C#, Visual Studio.
• Used jQuery, Angular JS to provide services to different components of portal.
• Involved in using MVC pattern for both UI development with AngularJS and application development with C#.
• Followed MVVM pattern for databinding between views and view-Models.
• Front end development utilizing HTML5, CSS3, and JavaScript, Telerik Kendo UI leveraging the Bootstrap framework and SQL backend.
• Designed User Interface using ASP.NET Standard Controls, WinForms and Ajax Controls.
• Implemented SQLite database with Xamarin forms to save necessary information into device local database.
• Experience in software unit testing and efficient at fact-finding, root cause analysis and bug-fixing .
• Experience in using language-Integrated Query (LINQ) (LINQ to SQL, LINQ to objects, LINQ to Entities, LINQ to XML).
• Implemented Server and Client-side validations using ASP.NET validation controls and JavaScript.
• Interacting with business team for clarifications on the requirements.
• Analyzing and identifying the problems and fixing the issues.

Environment: Visual Studio 2015, .Net Framework 4.5, Entity Framework 6.0, ASP.NET, ADO.NET, HTML, CSS, SSIS, SSRS, JavaScript, Xamarin, iOS SDK, Android SDK, Angular JS, AJAX, XML, Bootstrap, WCF, MVC 5, LINQ, JQuery, SQL Server 2014, Crystal Reports.

Xamarin/.Net Developer

Responsibilities:

• Involved in Designing the Application from the wireframes to finalizing the build release.
• Developed Native for both Android and iOS applications using Xamarin. IOS and Xamarin. Android.
• Implemented Xamarin components to use Camera, GPS and other Social Networking API’s to integrate them to the Mobile Application.
• Responsible for developing mobile applications for both Android and iOS using Xamarin and Visual Studio in C#.
• Used Agile methodology for app development and involved in daily and weekly SCRUM meetings to discuss various aspects of the code related to individual modules.
• Created storyboards using XIB files for iOS UI experience.
• Developed the automatic crash report collection system.
• Implemented the WCF Services/consuming the Services with the Security and Debugging Mechanisms.
• Developed an Azure based high performance compute environment to support the massive computational requirements of client congressional redistricting Azure application.
• Tested the application as per the test cases and business logic using unit test and fixed the bugs.
• Utilized ASP.NET validation controls and JavaScript, jQuery to perform client-side validation.
• Created Joins, Views, functions, stored procedures and triggers as part of the database programming in SQL and Oracle 11g.
• Experience of .NET security features such as Authentication (Windows-based Authentication, Forms-based Authentication) and Authorization (Authorizing Users and Roles) .
• Used Xamarin test cloud to automate testing.

Environment: Xamarin, XCode, Android SDK, Xamarin.Forms, MVVM, Xamarin test cloud, C#, Visual Studio .NET 2015, .NET framework 4.0 & 4.5, Azure web services, TFS, RESTful, JSON

.NET Developer

Responsibilities:

• Interacted with users to understand the business flow and gather their business requirements.
• Followed Agile and Scrum Methodology.
• Worked with Visual Studio 2010/ .NET Framework 3.5/4.0 to implement Business Logic.
• Developed and modified web pages using ASP.NET and C#.
• Worked with MVC architecture application using ASPX view engine and web API.
• Developed Views, controllers and business logic models using C#.
• Created design documents, Unit Test documents for new projects.
• Designed and developed common modules for Exception Handling, Security and Caching in the application.
• ADO.NET technology has been used to communicate with the SQL Server 2008 database.
• Used SQL Server 2008 to create tables, views for backend development.
• Used ADO.NET objects like Dataset, Data Adapter, Data Reader and ADO.NET API Entity Framework to create generic secure and reusable data access components.
• Written Stored Procedures, Query's for Database connectivity using SQL Server 2008.
• Used WCF Services for communicating with other application and components.
• Extensively worked on WCF Services using C# code.
• Developed test pages for different flows of application using JavaScript, JQuery, HTML5, CSS, AJAX and JSON.
• Developed RESTFUL Web services, APIs, and other back end components.
• Used Entity Framework as developed new entity objects using SQL server 2008 as backend.
• Develop / maintain all existing projects.
• Deploy application in staging and prod environment.
• Used TFS source control management
• Tracked all the User Stories, Test Cases and Defects and comments for any changes to the existing User stories using HPE ALM Tool,
• Identified defects and reported them in HPE ALM Tool, communicated to the team, tracked and verified fixes.

Environment: .NET Framework 4.0, C, Visual studio 2010, MVC 3.0, ASP.NET, HTML5, CSS, Entity Framework 4.0, Web API, C#, Java Script, JSON, JQuery, XML, AngularJS, WCF, RESTFUL services, LINQ, MS SQL Server 2008, HP-ALM, Team Foundation Server, Microsoft SQL Server 2008.

.NET Developer

Responsibilities:

• Designed and developed an n-tier architecture that included Presentation, Business and Data Access Layers using Silverlight, C#.Net and SQL.
• Designed, implemented and configured WCF service layer.
• Worked with WPF, Silverlight 3 in creating custom controls, data binding and graphics using Expression Blend.
• Managed to implement a layout system which adapt to changing window and display conditions by using WPF layout controls.
• Worked extensively on web forms and data binding controls like Grid View, Data List and drop-down boxes and Mapping page fields to the database fields.
• Developed and consumed WCF Services to achieve Service Oriented Architecture (SOA) and communication between heterogeneous applications.
• Worked with WPF, Silverlight in creating custom controls, 3D graphics, data binding etc.
• Used .Net assemblies for building forms and reports, linked tables with Access using SQL Server as Database.
• Used LINQ to retrieve information from the XML data files.
• Worked with Oracle 11g Database to access customer records.
• Session and view state objects used to maintain user session data and page post back operations respectively.
• Performed unit testing and the complete system integration testing.
• Worked on Production Support tickets by finding the issues and fixing them.

Environment: C#.NET 3.5, SQL Server 2008, Oracle 11g, .NET Framework 3.5, Visual Studio .NET 2008, IIS 7.0, Windows Vista, VSS, WPF, WCF, Silverlight 3.

.NET Developer

Responsibilities:

• Involved in the complete analysis, design, development and implementation.
• Designed and developed the modules using VB.NET.
• Responsible for analysis, design, implementation, management and maintenance of full software development life-cycle (SDLC ) project.
• Designed and developed the complete front-end application using Web Forms with C# as code behind.
• Designing and developing rich application for Web (ASPX/Silverlight) and Windows (WPF).
• Developed rich client interface using WPF and Silverlight 3.0.
• Developed Server-side .NET Email components in VB.NET and web services.
• Developed some of the stored procedure to insert, update and delete contents of tree view control and nested grids used in the application.
• Created User Controls and Custom Controls for common purpose in the whole application.
• Used client-side validation to forms using Java Script .
• Involved in Database diagram design and Tables design in SQL Server.
• Created Stored Procedures, Views, Triggers and Complex T-SQL queries in SQL Server.
• Involved in the development and execution of unit test cases.
• Involved in Unit Testing and Integration Testing.

Environment: ADO.NET, ASP.NET Framework 4.0/3.5, MVC 4.0, Visual Studio 2010, C#, WCF, WPF, AJAX, TFS, Agile Methodologies, NUnit, MS Visio, Web Services, XML, XSL, HTML, HTML 5, CSS, JavaScript, JQuery, MS-Excel, SQL Server 2008