SUMMARY

• Over 15 years of experience in information systems development and maintenance, using Visual Studio, working in a team and as an independent programmer.
• IT industry experience implementing Software Development Life Cycle (SDLC) in various Client/Server, Web and Distributed applications.
• Expertise includes Asp.Net MVC 5.0/4.0/3.0, UML, .NET Framework 4.5/4.0/3.5/3.0/2.0/1.1 , Visual Studio 2013, Entity Framework, ADO.NET SQL Server/Oracle databases, Web Services..
• Strong technical background in Microsoft technologies - .Net Framework 2.0, 3.5, 4.0, C#, VB.Net, ASP.Net, ADO.NET, WPF, LINQ, MVVM, MVC, Web API, Entity Framework, SQL-server, IIS and various Third party tools.
• Used SQL Server and MySQL Community as DBMS.
• Ability to work under pressure and high sense of goals achievement.
• Extensively worked with programming languages includes Visual Basic 6.0, VB.Net, C# and PHP.
• Hands on Database design, T-SQL, Stored procedures, Functions, Triggers, Query optimization using MS SQL.
• Experience with various Reporting solutions like SQL Server Reporting Services, Active Reports, Crystal Reports and UI libraries like Telerik and DevExpress.
• Expertise in UI design and development using ASP.NET, MVC, Razor, JavaScript, JQuery, AngularJS, Bootstrap, CSS, XML, XSL, XSLT, XAML, WPF, HTML, AJAX, SOAP, WSDL, Web Services, REST Services, IIS.
• Proficient in working with applications based on 3-Tier Architecture and n-Tier Architecture.
• Expertise in all the phases of software development life cycle with Object Oriented Analysis, Design, Development, Integration, Debugging and Testing for Software Applications in Client Server environment, Middle tier development and Web based applications.
• Extensive experience in Agile/Scrum Methodology, Pair programming.
• Working knowledge of source control and application lifecycle tools like Team Foundation Server (TFS) and GIT and Continuous Integration, Build and Release management process.
• Strong emphasis on SOLID, Design Patterns and loose coupling using Dependency Injection and IOC containers in Design and Development.
• Involved used techniques and tools like Reflection, Design Patterns, ADO.net, Entity Framework, third-party components as DevExpress also I have realized systems integration and migrations from different sources and languages to C#.
• Strong technical, analytical, problem solving, decision making, communication and organization skills.
• Proven ability to lead, manage project resources, interact with clients, coordinate and work in achieving high levels of productivity and efficiency in complex, dynamic and challenging environments.

TECHNICAL SKILLS

Languages: Visual Basic 6.0, Visual Basic .net, C#, PHP, HTML5, CSS3

Programming Topics: (General purpose) POO and design patterns; (.Net) Generics, Lambda expressions, anonymous methods and types, extension methods, reflection, asynchronous programming with async - await, Linq, interfaces and attributes.

.Net Skills: ASP.Net MVC 5.0/4.0/3.0, .NET Framework 4.5/4.0/3.5/3.0/2.0/1.1 , VB.NET, C#, ADO.NET, HTML 5, CSS, XML, jQuery, Bootstrap 3.0, WinForms, SilverLight 4, XML REST Services, UDDI, WSDL, SOAP, SSIS, Angular JS and AJAX

ORM: Entity Framework 6.0/5.0/4.0, nHibernate

Databases: MS SQL Server 2012/2010/2008/2005/2000 , Oracle 9i, MS Access 2K/97, MySQL

Analysis/Design: UML, MS Visio 2003

IDE: Visual Studio.NET 2003/2005, 2008, 2010, 2012, 2013, 2015, 2017 (Framework 2.0, 3.0, 3.5, 4.0 and 4.5).

Operating Systems: Windows 10, Windows 7, Windows Vista, Windows server 2003, Windows XP, Windows 95/98/NT/2000, UNIX, LINUX

Reporting Tools: Telerik Reports, Fusion Charts, Crystal Report 11/10/9/8, SSRS, Devexpress XtraReports

Server: IIS 8.0/7.0/6.0/5.0 , Windows Server 2012/2010

Source Control: Visual Sourcesafe 6.0, Starteam 2005, Clear case, Perforce 2007.3, Visual Studio Team Foundation server 2012, GIT

PROFESSIONAL EXPERIENCE

Confidential, Colorado

Sr .Net Developer

Responsibilities:

• Development of custom modules for the company’s customers
• Programming the requirements using the Visual Studio 2015 IDE and C# as programming language, the DBMS used is SQL Server.
• Responsible to make code changes based on the requirements at various tiers like database, entity framework or business tiers.
• Reviewer of analysis, design and implementation of application using MVC Architectural Design Pattern.
• Involved in creating microservices using ASP.NET core 2.0, Entity framework 6.0, WEB API 2.0 and unit test cases using mock test framework.
• Developed solutions using C#, ASP.NET MVC, Razor Views, Partial Views and ADO.NET Entity Framework.
• Designed and developed rich and enhanced web pages using WEB API, Microsoft Azure, Javascript, JSON, Ajax, HTML5 and CSS.
• Responsible for developing REST API for back layer to be consumed by Web Applications.
• Creating design documents for the new requirements and updating the existing designs on confluence.
• Creating the UI fragments using AngularJS and javascript and JSON.
• The utilization of Windows Forms, DevExpress, Linq and with .net Framework 4.0 technologies and Model-View-Controller pattern in the system architecture.
• Involved in requirement analysis and architectural design for entire project including frontend UI and microservices.
• Bug fixes for the custom projects
• Responsible for managing team of 6 people and provides mentorship to junior programmers in team.

Environment: C#.Net, Windows Forms, Angular 2.0, CSS3, Bootstrap, HTML5, ASP.NET core 2.0Entity framework 6.0, WEB API 2.0, Mock test framework, Sql server 2014, MongoDB.

Confidential

Senior C#.Net Application Developer

Responsibilities:

• DBMS upgrade from SQL Server R2
• Program code upgrade (from .net 2.0 to .net 4.0) using VS2013.
• Defining coding standards and best practices for the development team based on security standards and sonarqube code quality standards.
• Designed and developed new global caching application using ASP.NET MVC
• Involved in enhancements for existing application using C# 4.0, ASP.NET, XML, ASP.NET Web API, VB.NET.
• Developed new API methods to improve the functions of the application.
• Developed an administrator page for the use of the owners of the mobile App, so they can activate or deactivate users, edit users, block them, tracking busses location, on board passengers and some other functions.
• Actively involved in designing and development of User Interface using ASP. Net with, ADO. Net, JavaScript.
• System maintenance in the proprietary software used in the organization.
• System Integration of the programs: ACOSUT - proprietary software developed by Jorge Ramírez-, DFS from OPTOCONTROL and “Vueltas” from BEA, the last ones used for the automatic passengers counting via electronic bars. Those systems use SQL Server y Firebird respectively as DBMS.
• Network enhancements to the system ACOSUT for the use of dynamic DNS (DYNDNS) to communicate information about sales between terminals, this module programmed with C#.
• Development and management of the technical infrastructure for the operation and service to the vehicles.
• Server management (Windows Server 2003), DNS, Active directory and SQL Server installations: 2005 (OPTOCONTROL) and 2008 R2 (ACOSUT).

Environment: .Net Framework 4.5, Visual Studio.Net 2013/2010, C#, VB.NET, ADO.NET, ASP.NET 4.5, ASP.NET MVC 4.0, Web API, Entity Framework 4.0, HTML, CSS3, Bootstrap.

Confidential

Senior .Net Developer

Responsibilities:

• Worked as a lead for integration of some new member types and plan types with main member portal.
• Analyzing Business Requirements, creating POC modules and creating detail specifications for .NET modules as well as database stored procedures.
• Involved in integration of various portals to main portal and migration of application to newer .NET framework and technologies.
• Developed web portals using C# 4.5/4.0, ASP.NET 4.5/4.0, Jquery, XML, WCF service.
• Building RESTful and SOAP based WCF services to abstract and centralize common functionality.
• Developed services using ASP.NET Web API.
• Migration of portal from .net 1.0 to ASP.NET MVC 4.0.
• Created responsive web pages using AngularJS for mobile application.
• Unit testing for AngularJS code using Karma and Jasmine
• Defining coding standards and best practices for the development team.
• Perform code reviews and facilitate peer unit testing.

Environment: .Net Framework 4.5/4.0, Visual Studio.Net 2013/2010, C#, VB.NET, ADO.NET, ASP.NET 4.5/4.0, ASP.NET MVC 4.0, Entity Framework 4.0, Web API, HTML, SQL server 2008/2012, AngularJsKarma, Jasmine, Jquery, CSS3, SSRS, DevExpress, TFS

Confidential

.Net Application Developer

Responsibilities:

• Development of the information system ACOSUT created for the control of the operations in the different areas of the organization.
• The requirements were programming using Visual Studio 2005 IDE (.Net 2.0) and VB.Net and C# as programming languages, thus SQL Server 2005 as DBMS.
• In the project were used Windows Forms, ADO.net, asynchronous programming using the System Threading namespace, .net Framework technologies, the Model-View-Controller design pattern were used in the system architecture.
• Analyzed Business Requirements and prepared the high and low-level design document.
• Managing team of 4 developers.
• Created Reports using SQL Server Reporting Services.

Environment: .Net Framework 3.5, Visual Studio.Net 2008, C#, ADO.NET, ASP.NET, XML/XSL/XSLTHTML, SQL Server 2005, SQL Server Reports, VSS 2005

Confidential

Application Developer (C++, C# Visual Basic.Net)

Responsibilities:

• Professor in the computer science school and computer technical high school, teaching the courses: Computer architecture, Algorithms, System programming, Software engineering, and Construction of packages in university; and Programming principles, Programming language, Visual programming and Technologic actualization in high school.
• The topics of the courses require the use of Visual C++, C#, Visual Basic.net, PHP, HTML, CSS and JavaScript as programming languages.
• President of the computer science academy from, in this period were realized conferences, programming laboratories among others academic activities.
• Created UI layer using ASPX pages, .Net themes, skins and master pages, javascript, CSS.
• Developed business services layer and data access layer using ADO.Net, C# and Factory Method Design Patterns.
• Integrated with MS-Outlook iCalendar for email notification using C#.
• Developed Web services in C# for conference and other enterprise resource related information, which can be integrated with customer’s other applications.
• Used Microsoft Enterprise Library 3.1 for Logging and Exception handling
• Used N-Hibernate and XML for interaction with Database layer from C# programs.
• Created web projects using ASP.NET, Infragistics, CSS, DHTML, JavaScript, AJAX.
• Used various design patterns, like Singleton Abstract factory, MVC Design Pattern in the application designing
• Design and developed reports using Crystal Report 10.0 and Crystal Enterprise Server 10.0.
• Created web services for the application, Marketing Database, to give access to the scheduled Crystal reports in the Crystal Enterprise Server.
• Closely interacted with client to analyze business requirement and prepared use cases and involved in ongoing discussion with client team.
• Technical lead for the web projects.

Environment: Agile Methodology, C++, C# Visual Basic.Net, ASP.NET, ADO.Net, VS.NET, IISKerberos, LDAP, HTML/DHTML, AJAX, Crystal Report 10.0, Crystal Enterprise Server, VBA, ASPVB,Script, Java Script, Windows XP, Windows 2003

Confidential

Beginner/Junior Developer (C++, C# Visual Basic.Net)

Responsibilities:

• Developed console exe programs for file polling, routing, processing, splitting, consolidating, archiving and synchronizing in VB.Net
• Developed ASPX pages using ASP.NET 2.0 web form controls, User Controls, Custom Controls, HTML server controls in VB.Net using VS.NET 2005.
• Developed business services layer and data access layer using ADO.Net, VB.Net and Design Patterns
• Wrote Stored Procedures, Triggers, User Defined Functions in Oracle 9i and Performance tuning Oracle 9i database queries and stored procedures.
• Preventive and corrective computer maintenance.
• Wired and wireless network installation.
• Systems consulting and users training.
• Development of the inventory management program INVENT in Visual Basic 6.0 and Microsoft Access used by two local chemical supplies vendors.
• Windows Server configurations.
• Application server configurations (IIS) for intranets.
• Installation and technical support for installation or migrations of administrative systems Contpaq, COI, NOI.
• Design of small applications for data sharing between systems developed with VB.net and C#, with ADO.net and OLEDB data access.

Environment: C++, C# VB.NET 2.0, ASP.NET 2.0, ADO.Net, IIS, Oracle 9i, Visual Source Safe, VS .NET, PL/SQL, Crystal Report 10.0, .NET, PL/SQL, Crystal Report 10.0.