Due the expansion needs of Wal-Mart in different markets in the world, this team is in charge to create integration applications to feed in-house systems with the acquired stores systems. Responsible to design and develop different application framework modules; and also design and develop different integration processes, known as Interfaces. The solution is based on Apache Integration framework along with Apache Service Mix and Apache ActiveMQ.

Involved in the development, unit testing and defect fixing related to the enhancements for Ultera, according to the customization requirements for different IPD clients.Ultera is a web based and process management application. Teams within organizations can optimize workflows using this application which is integrated with all their disparate systems.

In charge of define architectures, choose the right technology for the applications to develop. Train team members on specific technologies for the projects, and participate in developing activities.• Designed and coded application components using Agile tools and techniques like Trello kanban board and having scrum meetings.• Worked on the design and development of a three tier web application in a distributed environment. Taking the Spring framework ecosystem as a foundation ground for the development. • Involved in the prototype of FSD (Functional Specification Document) and TDD (Technical Design Document) for each process.• Implemented several design patterns like MVC through Spring MVC, DTO and Repository.• Involved in the development of the application front end with Spring MCV, JSP, HTML5, Ajax trough JQuery and Dojo to provide a rich user experience. For Ajax interactions the data go forth and back as JSON strings.• Used Spring core in the business tier, demarcating transactions through annotations in service classes. • Generated entity, service and repository classes through Spring ROO.• Involving in writing queries in JPA Query Language.• Writing queries using Criteria to provide dynamic query creation. Involved in creating the metamodel classes to support Criteria queries.• Implemented the application security using Spring Security.• Created formatted email messages with Apache Velocity.• Used iText framework to create PDF reports, and Apache POI to generate MS Excel documents.• Developed and executing unit test cases using JUnit.• Deployed the application and tested on Apache Tomcat Servlet Container.• Worked with Trac and Mylyn to enable the developers managing their tasks in Spring STS IDE.• Involved in writing the Maven based pom.xml script to manage dependencies, build and deploy the application.

Involved in Integration Projects for the biggest retailer company in the world. Alfredo's activities includes design and develop sets of interfaces to communicate acquired companies' systems with in house systems. Team used Sterling Integrator tools.• Developed different Business Processes in BPML (Business Process Modeling Language). BPML is expressed in XML to define the flow or a series of steps that an incoming message should follow in order to deliver an output message that a target system is able to consume.• Developed BPML using different Sterling Services and Adapters, among others these are the main ones: File system adapter, FTP client adapter, Command line adapter, HTTP Server adapter, HTTP Client adapter, JDBC Adapter, XML validation service, Invoke sub-process service.• Developed different Mappings to transform messages form one format to a different one. For example, XML to positional, XML to binary, data separated by commas to XML, etc.• Coded Custom Services using Java. Sterling Integrator has many Adapters and Services out of the box, but sometimes due the project special requirements is needed to develop in house or custom services.

Responsible to create detailed designs and develop Web applications based on Java related technologies. Such set of technologies included: Struts, Struts Validator, Struts Tiles, Struts Tag-Lib, JSP, JSTL, HTML, Javascript, CSS, Ajax, Hibernate, HQL, SQL,

Alfredo was involved in projects Web and B2B that enabled ING to integrate their systems with suppliers' systems.

Alfredo developed mobile applications for Palm and Power PC platforms.