Senior Java developer

JAVA Consultant

Ismael Herrera Current location: Matawan, NJ

732-696-9099

PROFILE:

§ Over 6 years of software development with J2EE,using EJB, Servlets,
JSPs, MDB(Message Driven Beans), JMS (Java Message Service), JAAS
(Java Authentication and Authorization Service), JCA (Java Connector
API), Java Mail, JPA (Java Persistence API), JTA (Java Transaction
API), XML, etc.
§ Certified Java programmer, worked in J2EE projects and Java
standalone applications as well.
§ Experience in several three tier applications with J2EE in fields
like banking, health, insurance, educational, Government Sectors.
§ Analyze systems for the private and government sectors. Gathering
requirements, decomposing systems in use cases, GUI designing, making
system prototypes, testing maturity of use cases, identifying classes
and system interactions.
§ Use of UML as the main tool to design systems (use case diagrams,
sequence diagrams, class diagrams, components diagrams, deploy
diagrams, package diagrams, etc.)
§ Experience in all phases of software life cycle (inception,
elaboration, construction and transition), as analyst, programmer,
tester, java architect and project leader.
§ Hands on experience under different methodologies RUP, XP, CMMI,
Agile.
§ Adaptable to the projects demands capable to play different roles
from analyst to project leader.
§ Ability to work with cutting edge technology (Struts1.1, 1.2,
Hibernate, JSF, OSGI, Tapestry, Spring, Lotus Expeditor, AJAX).
§ Good knowledge in application servers such as WebSphere, Weblogic,
Jboss, Sybase, Oracle.
§ Thorough knowledge tuning Tomcat: security, clusters, single sign
on, virtual server, etc.


TECHNICAL SKILLS

Distributed computing: Sockets, Clusters, Web Services, Three Tier
Systems, Distributed Databases, Parallel Systems, Intensive Data
Processing, SOA
Domain experience: Government, Pooling Collection, Bank, Finance,
Agriculture, Livestock, Fishing, Natural Resources, Health, Social
Security, Health insurance.
Internet / e-commerce: J2EE, HTML, DHTML, JavaScript, Ajax, Web
Services, Apache Web Server, Tomcat, Application Servers.
Programming skills: Java 1.4 to 6, C++, C, Visual Basic.
Operating systems: Windows XP, Windows 2000, Windows NT, UNIX, Linux.
Development tools: Eclipse IDE 3.0, NetBeans 6.5, Xbuilder 10,
Jdeveloper IDE, IBM RAD, WebLogic WorkShop, WebSphere Studio .
Web/App servers: JBoss, WebSphere, WebLogic, Oracle Application
Server, Sybase Application Server, Tomcat, Apache Web Server.
Frameworks:
EAI: Hibernate, Struts, Tapestry, Spring, EJB3
Web services Enterprises Service Bus
Libraries: Jakarta DBCP, Jakarta mail, Log4J, POI, FOP, Maven, Ant,
Json.
Versioning systems: CVS, Subversion, Visual Source Safe
RDBMS: Oracle, DB2, Sybase, Postgress, MySQL, SQL Server
SDLC practice: RUP, Agile, Extreme Programming, CMMI
Testing tools: Junit, Cruise Control
Reporting tools: Itext, JFreeReport, Jasper Reports, Crystal Reports


Skill Set Years of Exp
Java 8
J2EE / EJB 6
WebSphere Developer 1
WebSphere Manager 1
JSPs / Servlets 6
Eclipse IDE 2
J2EE Security 2
XML 4
UNIX 3
Apache Axis, SOAP, WSDL 1
UML / RUP 6
Log4J 1
JUnit 1
RMI 1
Oracle 3
SQL 7
UML / RUP 6
Tomcat 4
Struts 3
Ant/Maven 1
HTML / JavaScript 6
Design Patterns 6
MVC 6


PROFESSIONAL EXERIENCE

Economy Ministry (Mexican Government Project)

Jul 2008 – Sept 2008
Java Senior Analyst Programmer

The system records all trials held between national and international
agencies with regard to national and international prices of products,
the system also gets reports of these trials letting asses the
performance of them.

Primary Responsibilities:

• Responsible of the analysis of the bi national and multilateral
disputes, reports, access control, user management modules using UML
( case diagrams, class diagrams, component diagrams, sequence
diagrams).
• Design of the above mentioned modules using sequence diagrams, class
diagrams, package diagrams.
• GUI design using HTML, JavaScript, NetBeans IDE and GlassFish
application server.
• Creating the system prototype using JSPs, HTML, JavaScript.
• Designing the database schema using Erwin.
• Use of three tier architecture with design patterns, Front
Controller, MVC, Fachada, BVO's, PVO's, DTO's with EJB's.
• Design of the system navigation.


Environment: J2EE, MS Visio, JSPs, Netbeans 6.1, Javascript, HTML,
GlassFish Application Server, UML.





Pawnshop System Jan 2008- Jun 2008
Project Leader
Nacional Monte de Piedad is the largest and most renown pawnshop
enterprise in Mexico. Renewal of the system to face the new
challenges. The system integrates legacy functionality with new.

Primary Responsibilities:

• Java Senior Developer leading the development of the project.
• In charge to recruit candidates for the project with EJB3 and Java
Server Faces experience.
• Plan the development of the components of the system by teams using
MS Project.
• Lead architect team to chose the appropriate set of technologies to
develop the project between WebSphere Application Server, WebLogic
Application Server, Jboss, EJB3, JSF, Struts, Charva, Spring,
Hibernate, TopLink, Kodo.
• Integrate CMMI methodology team with development team.
• Lead meetings with the customer.
• Designing modules of the system using UML (class diagrams, component
diagrams, package diagrams, sequence diagrams, etc).
• Setting the mechanics to interact with analysis team, format to use
with use cases, number of alternate paths, number of error paths.
• Low level design of components, method identification, interaction
between objects and components.
• Web Services research.
• Resolve the issues with clustering & web services faced by co-team
members.

Environment: J2EE, EJB, JSF, Log4j, Subversion, UML, Enterprise
Architect, Design Patterns, GlassFish Application Server, XML, Log4j,
SQL, Javascript, HTML, MS Project.


HSBC July 2007-Dec 2007
J2EE Senior Programmer

Project for an international bank, to synchronize the development of
the systems. Development of the enterprise framework and upgrading.

Primary Responsibilities:

• Code refactoring to upgrade the existing framework, using Eclipse
refactoring functionality and fixing problems with the new components.
• Design unit test cases using Junit for the fixed code.
• Manage MQSeries server, setting and resetting the channels,
troubleshooting communication issues.
• Manage subversion server, adding users, installing the server as a
windows service, using Eclipse IDE as subversion client.
• Document steps to resolve the issues found in code.
• Research new presentation tools as Tapestry to use as an alternative
to Struts and Java Server Faces.
• Research technological resources to use as a detached web service
such as Lotus Expeditor a tool that lets you work with transactions
even when you are off line.
• Research new technologies like OSGI, this technology lets add
services to a Java virtual machine without restarting it and is a
foundation of tools like Eclipse IDE.



Environment: Eclipse IDE, RAD, Websphere Application Server,
Portlets, IBM Portal Server, design patterns, J2EE, SQL, DB2,
MQServer, Tapestry, Lotus Expeditor, OSGI, JUnit.





MetLife Jan 2007- May 2007
Project Leader

MetLife is one of the largest insurance companies in the world, the
call center has maintained its old way to carry out their work. The
system automated its work and also let measures it.

Primary Responsibilities:

• Plan the development of the project with MS Project.
• Track the performance of the team with Agile Track.
• Gather client requirements from the end user to the IT manager in
client meetings.
• Integrate a small extreme programming (XP) team development with
CMMI procedures.
• Integrate the development team that were able to work with Servlets,
JSPs, JavaScript, EJB, DB2, HTML, AJAX and CMMI.
• Analysis of the system with use cases, class diagrams, sequence
diagrams, component diagram, deploy diagram using UML.
• System design using sequence diagrams, class diagrams, interaction
diagrams.
• System module programming using Servlets, JSP's, WebSphere
Application Server, AJAX, JavaScript, HTML, RAD (Rapid Application
Development), design patterns as Service Locator, PVO's, DTO's,
Business Delegate, DAO, etc.

Environment: J2EE, WebSphere Application Server, DB2, UML, MS Project,
Netbeans, Eclipse, RAD, HTML, JavaScript, AJAX, Agile Track.


Budget System for Education Ministry Jun 2006- Nov 2006
Java Senior Programmer

The system automated some tasks that were made manually before, as
assigning budget to states depending on how many teachers the state
has. It has to be synchronized with other ministries interchanging
information.

Primary Responsibilities:

• Report design using FOP (Formating Object Processor) library,
Servlets and JSPs.
• Use case analysis using UML.
• Code refactoring of components already developed.
• Defect backtrack analysis and fixing.
• Module programming using Servlets, JSPs, HTML, JavaScirpt, POJOs,
etc.
• Testing and fixing defects.


Environment: Netbeans 5.0, Java, JSP, Servlets, JavaScript, HTML 4.0,
UML, Sybase,Oracle, Tomcat 5, DataSources, Connection Pools, Pattern
Design, FOP, Sun Application Server.


Maritime Services of Campeche Feb 2006-May 2006
Java Senior Programmer

The system migrates the old system to a new one, basically having the
same functionalities adding capabilities to centralize data using web
features.





Primary Responsibilities:

• Migrating the system developed as a standalone application to a
three tier system using Servlets, JSPs, Oracle UIX, Oracle ADF, Oracle
BC4J, Oracle DB and Oracle Application Server.
• Programming administration modules with Oracle UIX, ADF, Oracle DB
and BC4J.
• GUI design with HTML, JDeveloper and JavaScript.
• Managing image objects with Java2D and Oracle DB.

Environment: J2EE, Oracle DB, JDeveloper IDE, Oracle Application
Server, Oracle UIX, Oracle ADF, Oracle BC4J.


Human Resources System for Gender Equity & Reproductive Health
Center May 2005-Sep 2005
Java Senior Programmer

The system centralizes the information and standardizes the business
rules for the center throughout the country changing the way to make
business and achieve goals.

Primary Responsibilities:

• Install and tuning the server (HP Prolliant Server) with Linux Red
Hat.
• Design the system for Java, translate the system, database
centralized to a three tier application.
• Program the system using Servlets, JSPs, NetBeans IDE, HTML,
JavaScript, POJOs.
• Train Java junior programmers.
• Connect Apache Web Server with Tomcat using JK connector.

Environment: Tomcat, Apache Web Server, J2EE, JavaScript, HTML 4.0,
Servlets, JSPs, NetBeans, design patterns, Jasper Report, CVS.


Juridical System for Social Security Institute Mar 2005-Apr 2005
Java Senior Programmer

The Social Security Institute serves many pensioners throughout the
year it also works with many enterprises, many disputes arises when
the pensioner is not comfortable with the service or when the
institute doesn't receive the quality of service required from
enterprises. When the institute receives a complaint from pensioner a
process is followed, when the institute sues some enterprise for a bad
service another process is followed, the system covers all these
processes but not only these.

Primary Responsibilities:

• Module programming using Servlets, JSPs, Struts, HTML, JavaScript,
WebLogic Server, SQLServer.
• Fixing modules already designed and programmed that failed to run
after testing.
• Designing tests for modules already designed and modules that were
being developed at that time.
• Running a set of tests.

Environment: Rational Rose, WebLogic 8.0, J2EE, WebLogic WorkFlows,
JavaScript, HTML 4.0, Servlets, JSPs, NetBeans, MS Project, Visual
SourceSafe, SQLServer.


Pensioner Calls and Monitoring System for Social Security Nov 2004-
Feb 2005
Java Senior Programmer

The system helps follow all the processes to serve the pensioners it
also allows to monitor the services the institute is bringing aiming
to improve the quality of the service.



Primary Responsibilities:

• Requirements gathering at the user level, holding meetings with end
user.
• Process analysis, using UML and putting the process in accordance
with ISO 9000 process flowing.
• Defining the use cases that conformed the system using UML.
• Designing the classes that integrate the system, the modules and the
components using UML.
• Database schema design using Erwin data modeler.
• Programming of the modules using Servlets, JSPs, HTML, JavaScript,
WebLogic Application Server.

Environment: Rational Rose, WebLogic 8.0, J2EE, WebLogic WorkFlows,
JavaScript, HTML 4.0, Servlets, JSPs, NetBeans, MS Project, Visual
SourceSafe, SQLServer, Erwin.

Membership, Collection and Control System of Social Security
Institute Aug 2004-Oct 2004
Java Senior Programmer

The system aims to provide a better control over employers to fulfill
their responsibilities, assuring more workers to be affiliated.

Primary Responsibilities:

• Using abstract use cases to derive 18 use cases.
• Business rules refinement.
• Low level design of components.

Environment: Rational Rose, UML.


Agriculture Ministry System Mar 2004 -July 2004
Project Leader

The agriculture ministry covers a broad range of services because it
has to do with livestock, agriculture resources and fishing, there are
a large number of peasants that depends on it to could sow, there are
some rules to be eligible to receive the support that government
gives, the system putted this process in other level, it aims to cover
a broader number of people due to the use of the web.

Primary Responsibilities:

• Use case analysis with UML.
• Team train to use Struts, J2EE and to program a three tier system.
• Team train to web development.
• Design of modules of the system using UML (use cases, class diagram,
sequence diagram) and design patterns.
• Database schema design.
• Program modules of the system using Struts, Tomcat, JDeveloper,
Servlets, JSP, PVOs, BVOs, Oracle.
• Plan the development of the system using MS Project.

Environment: UML, Oracle Application Server, J2EE, Struts, JavaScript,
HTML 4.0, Servlets, JSPs, JDeveloper, MS Project, CVS, Oracle DB.


Central Bank of Mexico Oct 2002-Jan 2004
Java Programmer

The Central Bank of Mexico is a central actor in the economic activity
of Mexico. The system let's gather standardized information from
different sources to make economic analysis.




Primary Responsibilities:

• Use case analysis using UML and Rational Rose.
• Code refactoring of modules already developed using JBuilder.
• Subsystem design using UML and design patterns.
• Module programming using Servlets, JSPs, EJBs, Sybase, Jaguar
Application Server.
• Threads programming, the application needed to measures its own
progress, in order to achieve it, launches a thread and another to
perform the process.
• Three tier system programming.
• Standalone system programming.
• Asynchronous programming using MDB and JMS.

Environment: UML, Rational Rose, RUP, Struts, JavaScript, HTML 4.0,
Servlets, JSPs, XBuilder, MS Project, ClearQuest, ClearCase, Design
Patterns, EJB, Message Driven Beans, JMS, Sybase Application Server,
Oracle, Sybase, Crystal Reports, JFreeReports, SQL.


EDUCATION AND TRAINING


Bachelor Degree in Computer Engineering 1997

Master Degree in Computer Science 1999

WebSphere Portal Administration 2007

WebSphere Portal Developer 2007


contact person
Sri- 732 765 9235 x 129