SUMMARY:

• Competent professional with up to date knowledge on new technological trends in the field of computer science, software development, telecommunications and information security.
• Prepared to contribute to the efficient achievement of the organization, to improve upon and increase my own knowledge and skills through independent learning and via applied certification programs in Information Technology.
• Over 12 years of experience in the area of Information Technology applied to the implementation of security management systems and improvement of industrial processes.
• Main and recent 9 years focus was on developing computer tools that contribute to obtain critical information and decision making in the development and implementation of Security, Health & Environmental Protection Management Systems (SSPA), Financial Control of Orders of Service, as well as in the implementation of said tools.
• Hands on professional IT Experience in design and development, testing and implementation of Client/Server and Web - based N-tier architecture systems using Microsoft Technologies.
• Hands on experience in design using Object Oriented Programming Principles like Encapsulation, Inheritance, Polymorphism, reusability and Design patterns like Dependency Injection, Abstract factory, Singleton, Object pool a standard solution to common problems in software design.
• Strong in the complete Software Development Life Cycle (SDLC) including requirements Definition, Design, Programming, Testing and Implementation of major systems.
• Developed N-tier web applications using Visual Studio 2008/2010/2012/2015 , C#, .Net core 2.0 ASP.Net 3.0/3.5/4.0/4.5/4.7 , ADO.Net, WCF, XML, SOAP, Web Services, Web Forms and MS .Net Frameworks.
• Proficient in Object Oriented Design/Development (OOD), Object Oriented Analysis and Design (OOAD), Model View Control (MVC) design pattern and Test-Driven Development (TDD).
• Expertise in using ADO.NET objects such as Connection Object, Command Object, Data Reader Object, Data Adaptor Object and Dataset Object.
• Exposure to Cloud Technologies like Azure, AWS.
• Worked with .NET Server Controls, Web User Controls, Data Grid Web Control, and Form Validation Controls and created numerous Custom controls.
• Extensive experience in designing professional UI Web Applications using Front End Technologies like HTML5, CSS, JavaScript, jQuery, AJAX, JSON, Angular 6/7/8 and Bootstrap.
• Built Angular components, UI services to consume rest services using Component based architecture provided by Angular 6/7/8.
• Wrote miscellaneous console applications that performs specific database tasks for internal use.
• Build a RESTful API using Microsoft Windows Communication Foundation.
• Extensive experience in working with LINQ to SQL and LINQ to XML and REST Services.
• Design, develop, implement and support highly complex Win forms applications using advanced knowledge of technologies including VB.Net, Infragistics Controls, and Windows Presentation Foundation and associated technologies.
• Implemented a SaaS offering to enable data sharing among disparate vendors in the cloud. This solution uses a multi-tenant SQL backend and a portal which morphs to the needs of the current user.
• Knowledge in developing user configurable workstations for trading, sales, research and compliance of convertible bonds.
• Strong Database Design, Development experience with Microsoft SQL Server 2016, SQL Server Reporting Services (SSRS), Integration Services (SSIS) and Report Builder Projects.
• Extensive experience in programming SQL Server 2016/2017 - Stored Procedures, Cursors, Triggers, User-defined Functions, Joins and Views and also expertise in middleware too.
• Polished documentation skills. Prepared HLD, LLD (technical specifications) working with modeling tools like Rational Rose, Microsoft Visio. Proven skills in explaining technical issues to business staff, technical staff and customers.
• Highly skilled in good analytical and creative debugging techniques including but not limited to using Windows System Internal Suite tools and Windows Debugging Tools.
• A positive Team player with good learning curve, tries to keep up to date new technologies. Extensive experience in supporting customers directly and indirectly.
• Involved in resolving many post-release support issues by trouble shooting them without affecting timelines and thereby meeting customer satisfaction.

TECHNICAL SKILLS:

Programming Languages: C#, VB, JSF, SQLite, SQL Server-Transact-SQL 2008/2012/2016/2017 , Oracle-PL/SQL, Postgres-SQL, MySQL

Front End: ASP.NET Web Forms, ASP.NET MVC, HTML, AJAX, DHTML, XSL, XSLT, jQuery, JSP, JavaScript, Servlets, Angular 6/7/8, NodeJS, jQuery Mobile, XAML

Mobile Technologies: Android, Kotlin

.Net Frameworks/ Testing: Framework 1.1/2.0/3.0/2.5/4.0/4.5/4.7/ NUnit testing framework

Web Services: HTTP, Restful Web Services, Android SDK, Google APIs, XML, DOM parsers, SAX parsers, SOAP, JSON

ORM: NHibernate, Entity Framework 6.0

Operating Systems: Windows, Linux, UNIX, Mac OSX, IOS, VMware, Android

Testing and QA Tools: DDMS, Logcat, Hudson, Test link, Bugzilla, Quality Center

Package/Version Control Tools: JIRA, Repo, Team Foundation Server, CVS, GIT, VSS

Application Servers: Visual Studio 2008/2010/2012/2014 , Professional Edition, IIS 6.0/7.0

Reporting Services: SQL Server Reporting Services (SSRS), Crystal Reports 9/10

IDE Tools: Visual Studio, Android Studio, IntelliJ, NetBeans, Atom, SublimeText, Xcode

Database Technologies: MySQL, SQLite, Realm Database, SQL Server, Oracle RDBMS, MS Access

Methodologies: OOAD, UML, Design Patterns, Waterfall, Extreme Programming, AGILE

Design Tools: RationalRose, MS Visio, CA Erwin

Cloud Experience: Microsoft Azure, AWS and Google Cloud Platform

Others Tools: VBA, Corel Draw, MS Visual Studio, IBM Worklight, Android Studio, JDeveloper, Photoshop, Sublime Text, Atom, IntelliJ IDEA, Xcode

PROFESSIONAL EXPERIENCE:

Confidential, Agoura Hills, CA

Senior Application/.Net Developer

Responsibilities:

• Working on Third Party Integration such as Equifax, Appraisal Review and TransUnion in order to check credit report and employment status for lenders.
• Created solutions for integrate AWS S3 bucket and Lambda functions with requirements inside enterprise software.
• Involved in implementing logic using OOP’s Concepts and C#, such as Abstraction, Inheritance, Encapsulation and Polymorphism.
• Collaborated with large teams using JIRA tool for bug tracking, issue tracking, and project management.
• Developed a web application using ASP.NET MVC 5.0, C#, JavaScript, jQuery and Ajax.
• Utilized ADO.Net Entity Framework technology extensively for data retrieving, querying, storage and manipulation using LINQ.
• Implemented Server and Client-side validations using ASP.NET validation controls and JavaScript.
• Passing the details need for the call to get Authenticated since the Web API using OAuth and is being deployed on Azure.

Confidential, Pleasanton, CA

Senior .Net Full Stack Developer

Responsibilities:

• Hands on professional IT Experience in design and development, testing and implementation of Client/Server and Web-based N-tier architecture systems using Microsoft Technologies.
• Strong in the complete Software Development Life Cycle (SDLC) including requirements Definition, Design, Programming, Testing and Implementation of major systems.
• Developed N-tier web applications using Visual Studio 2008/2010/2012/2015 , C#, ASP.Net 3.0/3.5/ 4.0/4.5/4.7 , ADO.Net, WCF, XML, SOAP, Web Services, Web Forms and Microsoft.Net Frameworks.
• Proficient in Object Oriented Design/Development (OOD), Object Oriented Analysis and Design (OOAD), Model View Control (MVC) design pattern and Test-Driven Development (TDD).
• Expertise in using ADO.NET objects such as Connection Object, Command Object, Data Reader Object, Data Adaptor Object and Dataset Object.
• Establish and optimize CI/CD development model to build an effective pipeline to automate build, integration and test processes using Azure Devops
• Converting .Net application to Microsoft Azure Cloud Service Project as part of cloud deployment
• Worked with .NET Server Controls, Web User Controls, Data Grid Web Control, and Form Validation Controls and created numerous Custom controls.
• Extensive experience in designing professional UI Web Applications using Front End Technologies like HTML5, CSS, JavaScript, jQuery, AJAX, JSON, AngularJS, Angular 6/7/8 and Bootstrap.
• Extended a custom domain driven microservices architecture built on top of ASP.NET Web API and the HTTP protocol.

Confidential

Senior .Net Full Stack Developer

Responsibilities:

• As a .Net lead ASP.Net managed development teams focus in oil & gas industry, apply agile methodology to control all process of development. Technologies involved in these projects were: ASP.Net MVC, Razor Pages, Entity, LINQ, SQL Server, creation of tables, stores procedures, functions, reporting Services.
• Implemented Agile Software Development methodology to enable high-quality software development.
• Developed a web application using ASP.NET MVC 5.0, C#, JavaScript and Ajax.
• Involved in implementing logic using OOPS Concepts and C#.
• Worked on Azure Cloud Services to deploy Web API.
• Coding multithreading functions for WebAPI in .Net core 2.0
• Used Angular 7 framework to bind HTML (views) to JavaScript objects (models).
• Used MVC architectural pattern in application.
• Established communication between different applications running on same/different platforms using WCF.
• Designed MVC design pattern for ASP.Net application development using the ASP.Net MVC framework.
• Designed, develop and maintenance of mobile applications.
• Execute ADB commands to test the app on Android platform (major release components).
• Worked on Java script for the backend functionalities to develop the hybrid applications.
• Worked on Native application development with C and C++ to develop the native app in the android mobile.
• Worked on accelerometer for using the location services on maps with the help of Google maps API.
• Developed Custom controls for Unbutton, UITextField, UIViews, UITextView.
• Consumed the REST services, getting XML, JSON response and parsing them to get the required information.
• Enabled the application to use the Camera feature to scan a document and upload the check using SQLite.
• Used Android SDK and Eclipse IDE for development.
• Implemented customized web view component to load a Suffice and HTML data.
• Implemented the required GUI by making modifications to the XML files.
• Embedded Google Maps API, GPS Location Data into app with zooming controls.
• Worked on debugging the application using Log cat, DDMS.
• Analyzed and designed UML Use Cases, Class Diagrams, State Diagrams and Activity Diagrams.
• Implemented (and performs the role of Administrator for) Microsoft Azure cloud-based environment.
• Worked as administrator for Microsoft Azure SQL database to perform queries, functions, store procedures and replicate that functionalities in local environments

Environment: C#, .Net core 2.0, Android SDK, C & C++, JIRA, JDK, Azure, SQLite, REST API, Eclipse IDE, Xcode, QT, Cordova, Ionic Framework.

Confidential, Costa Rica

Microsoft .Net Web Developer

Responsibilities:

• Involved in the SDLC phase of requirement analysis, design, and 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 4.7 and develop them in newer versions.
• Used C# in Xamarin to create native mobile application.
• The platform included a front-end developed with Java technology, jQuery, HTML5, Cordova and a back-end with different integrations to financial security platforms.
• Collaborated in the development of the iOS version of the same application integrating it with a third tool.
• Development of agricultural production measurement tools and components: coffee, cotton, cocoa and sugar cane at the country, region, farm or producer level, in a total of 11 countries in America, Asia and Africa for the company ECOM. The technology used covers a web portal developed with MVC C # architecture, jQuery and SQL Server transactional database.
• 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.
• Setup Azure Virtual Appliances (VMs) to meet security requirements as software based appliance functions (firewall, WAN optimization and intrusion detections)
• Developed Cross-Platform Mobile app using Xamarin Forms with code sharing between all platforms (Android, iOS and Universal Windows apps).
• Develop applications as web services, web APIs, web apps using dependency injection and Angular 6/7/8.
• Worked on automated UI Acceptance testing using Xamarin Test Cloud.
• Used MVC pattern for both UI development with Angular 7 and application development with C#.
• Followed MVVM pattern for data binding between views and view-Models.
• Designed User Interface using ASP.Net Standard Controls, Win Forms and Ajax Controls
• Created Typescript reusable components and services to consume REST API's using Component-based architecture provided by Angular 6/7/8.
• Implemented SQLite database with Xamarin forms to save necessary information into device local database.
• Used language-Integrated Query (LINQ) (LINQ to SQL, LINQ to objects, LINQ to Entities, LINQ to XML).
• Expertise in Agile development methodologies, Industry standards and best programming practices, like SDLC, Test Driven Development (TDD), SCRUM, JIRA, GIT, TFS, IIS, Stash, Continuous Build and Dependency Injection.
• Implemented Server and Client-side validations using ASP.NET validation controls and JavaScript.
• Analyzing and identifying the problems and fixing the issues.
• Implemented Dependency Injection to makes possible to eliminate, or at least reduce, a components unnecessary dependency; I reduced a components dependency to makes it easier to reuse in a different context.
• Extensive commercial C#/WPF development experience, with strong OO knowledge and experience of creating rich UI applications in WPF 4.5/4.0, Silverlight 4.0/3.0 along with XAML programming.
• Extensive knowledge using Generics and Delegates, also functions type Lambda with the purpose to generalize class, methods and functions and optimize resources in process time for getting critical information

Environment: C# .Net Framework 4.7,Azure, .Net Core Entity Framework 6.0, Visual Studio 2015, ASP.NET, ADO.NET, HTML, CSS, SSIS, SSRS, JavaScript, Xamarin, iOS SDK, Android SDK, Angular 6/7/8, AJAX, XML, Bootstrap, WCF, MVC 5, LINQ, JQuery, SQL Server 2014, Crystal Reports.

Confidential

C#.Net Software Developer and Analyst

Responsibilities:

• As .Net Lead ASP.NET with the purpose de develop tools to control information about finances, services request, operations and sales between Confidential & DuPont. Technologies applied were: .Net Framework 3.0, ASP.NET MVC, Entity Framework, LINQ, jQuery, JavaScript and Telerik Reporting
• Involved in translating the customer requirements into Design specifications and ensured that the requirements translate into software solution.
• Used an Agile, Scrum approach methodology for software development.
• Used C# as programming languages for multiple applications and used Visual Studio which maintaining legacy applications.
• Designed ASP.NET based Graphical User Interfaces with CSS, JavaScript, JQuery, AJAX and HTML.
• Worked with WSDL document and SOAP protocol while working with Web services. Developed and maintained portal using ASP.NET and C#.
• Created Stored Procedures to perform automated rules, updating to related tables using SQL Server, T-SQL.
• Utilized ADO.NET objects such as Data Reader for consistent access to SQL Server 2005 data sources.
• Created the database and several stored procedures and views were written to access the database.
• Developed patient progress reports using Crystal reports.
• Used XML web services to send orders to external labs.
• Generated reports using SSRS.
• Developed Stored Procedures, Triggers and complex SQL statements and generated various reports using Crystal Reports.
• Used ADO.NET to access SQL Server database and perform operations like Select, Create, Update, Delete.
• Responsible for developing web pages and WCF Services to retrieve and validate data from the web service and store in SQL Server Database.
• Used GitHub as the central code repository.
• Used ASP.NET Validate controls to handle Server-Side validations and JavaScript to handle Client-Side validations.
• Used LINQ to SQL and LINQ to Objects for retrieving the data efficiently.
• Worked with Master Pages and developed Cascading style sheets (CSS) for consistent for application.
• Experience in developing Web Services and invoking them by using XML, SOAP and WSDL for creating proxy classes.
• Used MS Visio prepared Use Case, Class, Sequence and class diagrams.

Environment: C#, ASP.NET, ADO.NET, jQuery, AJAX, LINQ, XML, Web Forms, NUNIT, JSON, IIS, JavaScript, Web Services, Agile, HTML, CSS, SQL Server 2008 R2, Git hub.

Confidential

Developer

Responsibilities:

• Participated in requirement gathering sessions with the client and preparation/modifying of the requirements in Requirement Specification document
• Involved in Design, Development and testing of application.
• Design Web pages using ASP.NET, HTML, JavaScript and CSS.
• Extensively used ADO.NET classes to work with SQL Server database. Used Connection Command, Data Reader, Data Adapter, Data Set and Data Tables for disconnected mode of operation.
• Implemented business logic using C#.
• Designed dynamic ASPX web pages for the Application using ASP.NET, C#, XML and JavaScript.
• Implemented input validations using .NET Validation Controls.
• Used LINQ for building and executing a query expression.
• Developed personalized views using Themes and Master pages.
• Created User Controls and Web Server Controls for the Web Forms and applied validations accordingly.
• Extensively used SQL Stored Procedures for accessing the information from SQL Server 2008 Database.
• Designed dynamic ASPX web pages for the Application using ASP.NET, C#, XML, HTML and JavaScript.
• Involved in the design, development and maintenance of the SQL Server 2005.
• Involved at the migration from PostgreSQL to SQL Server 2005 including all types of scripts.
• To make the User Interface more responsive mainly used jQuery and AJAX.
• Published Web services using C#.NET to interact with the other apps and exposed them using SOAP, HTTP.
• Used Team Foundation Server (TFS) for maintaining the version control history.
• Created Stored Procedures, Functions and Triggers to perform automated rules, updating to related tables using SQL Server using T-SQL.

Environment: C#, .NET Framework 3.0/3.5, ASP.NET 3.0, WCF, ADO.NET, JQuery, AJAX, LINQ, XML, Web Forms, JSON, IIS, TFS, JavaScript, HTML, CSS, Web Services, SQL Server 2008.

Confidential

Instructor & Administrator SAP-Audit Management

Responsibilities:

• Leaded the development of Web Application Confidential 2010 as .Net Senior in ASP.NET (Integral Safety and Environmental Level of a Facility), applying .Net Framework technologies as: ASP.NET Web Forms, ADO.NET, Entity Framework, SQL Server 2008 (involved creation of tables, stored procedures, functions and triggers with T-SQL), Telerik Controls and SQL Reporting Services. The project included apply the Confidential methodology, identification of findings or non-conformities, risk assessment using the COMERI methodology and communication with the Institutional System of Confidential SAP-Audit Management.
• Audit and Normative Management of the Sub directorate of Industrial Safety and Environmental Protection. Confidential - Confidential (Villahermosa, Tabasco, Mexico)
• Instructor SAP-AM in the 4 regions of Confidential: North, South, Northeast and Southwestern

Environment: SAP, SAP Audit Management.

Confidential

Analyst Programmer

Responsibilities:

• Design and developed SICS-Project business application (Information System for Project Control and Follow-up)
• Participated in the development of a portal, using VB6, to produce much of the functionality, finding it to be a valuable, time saving advantage.
• Participated in Architecture and design and development of high volume transactional external web based application.
• Complete development and architecture of a full cycle database driven Win Form software application.
• Created Data Access and Business Logic layers.
• Created a web service that interacts with different systems within the company.
• Involved in creating stored procedures.
• Responsible for Code review & Architecture review (systems & application).
• Participated on the deployment and troubleshooting of production issues.
• Technology Used: ASP.Net, HTML, Java Script, VB6, SQL Server 2000, XML, Web Services.

Environment: VB6, Windows Forms, HTML, CSS, JavaScript, SQL Server 2000, XML, Web Services, Windows.