TECHNICAL SKILLS:

Skills/Knowledge: Java, Servlet, ActiveMQ, Mule, RESTful web service, JAX - RS, Jersey, JDBC, LDAP, JNDI, Hibernate 3, Struts, DAO, Singleton, Log4j, Junit, Spring MVC, XML, JAXB, JAXP, Tile, .Net Web Forms, JSP, JSTL, JQuery, CSS3, HTML5, AJAX, UNIX/Shell Script, C, ESQLC, 4GL, PL/SQL, Stored Procedure, JAWS, Perl

Application Servers: Tomcat, Jboss, WebSphere, Weblogic, IIS

Tools: Eclipse, Rational Application Developer, Ant, Clear Case, GitEye, SQL Developer, Toad, TFS, Visual Studio 2013, Autosys

Operating Systems: UNIX, Linux, MS Windows

Databases: Oracle, Sybase, Informix

PROFESSIONAL EXPERIENCE:

Confidential

Software Engineer

Responsibilities:

• Participating in supporting and system enhancements for several multi-family applications under the Investment & Capital Market group.
• Read and research existing codes and create technical documentation for applications 1) 1010Data Upload application. The application uploads large amounts of loan data for analyzing amounts of re-performing, unsecuritized loan as well as related performance data 2) Single Family Whole Loan Engine. The application is for aggregating the entire float (interest) book into BlackRock Services. A document has been created for support team to understand the application and quick troubleshooting.
• Modifying existing SFVA (Single Family Valuation Accounting Amortization) application by restructuring codes to eliminate GUI part of application so a new version of the application would automatically generate adjusted monthly/quarterly/yearly reports without any user actions. The enhancement changes would reduce the cost for future support for the application. Technologies used for the application: Java 8, Autosys, Korn Shell, Maven, Ant, Log4j, Sybase and GitEye.
• Reviewed the hardcoding-server-name reports generated by running a utility script. Based on some code scan and research, created a report for management with a list of applications which do have server names hard-coded, and false hardcoding server names are taken off the report. The effort was part of the overall effort for system enhancement for some applications.
• Participate in support rotation for monitoring application jobs and emails reporting job issues.

Environments: Unix/Linux, Sybase, Autosys, Korn Shell, Java 8, GitEye, EXCEL, Windows10, Eclipse, MVN

Confidential

Web Application Developer

• Fixed/enhanced broken Perl scripts for automatically generating/editing finger/slap images for Confidential Office of Biometric Identity Management ( Confidential /OBIM) system. The enhancements have made the Confidential software more efficient and less potential malfunctioning.
• Developed Perl scripts for automatically comparing personal image files, reorganizing file system folders.
• Participated in requirement discussions with clients and architect. Wrote requirement documentations.
• Wrote RESTful web services in JAVA for account creating/updating/activating/deactivating/deleting functions that has been used in Confidential ’ United States Citizenship and Immigration Services ( Confidential /USCIS) systems. Modified web service simulator client for testing web service. Jersey RESTful Web Services framework was used.
• Wrote JMS ActiveMQ messages for synchronizing user account information in different systems.
• Developed/updated stored procedures to implement some business logic.
• Used .Net Web Forms to create services for retrieving user workload and re-assigning workload, etc.
• Used Team Foundation Server (TFS) to track code changes and to communicate with development team members for tracking bugs, tasks, system requests, review items, etc.

Environments: UNIX, Linux, Visual Studio 2013, Eclipse, Perl, Java, .Net, TFS, TOAD, Oracle 11g and Jersey.

Confidential

Web Application Analyst/ Developer

• Responsible for system enhancements and bug fixing for Energy and Performance Information Center (EPIC) for HUD project. EPIC has very complicated business logic and user interfaces. The HUD application, embedded with formula and algorithm, is used for determining fund granting based on the information provided by users.
• Participated in requirement discussions with client, technical and architect team.
• Worked for different modules using Java, Struts1.3, Tile, JSTL, Custom tag library, JavaScript, JSP and XML for user interfaces and backend work. .
• Created some triggers for responding database table changes to maintain data integrity. .
• Analyzed, processed data in Excel, and then load the data into database.
• Used Weblogic 10.3.6 version as application server, Oracle 11g, and Serena Dimension for source code control as a development environment.
• Wrote Java code with SAX parser to read XML documents.
• Used Struts 1.3 for business flow control and Hibernate 3.0 for object-relational mapping tool as development environment.

Environments: UNIX, Weblogic 10.3.6, Eclipse, Java, Struts 1.3, Hibernate 3.0, JSP, XML, JavaScript, Oracle 11g.

Confidential

Web Programmer Analyst

• Participated in DoD Financial Management Workflow project, analyzed the business logic. Created unit, integration, and regression test cases based on user requirements.
• Focused on enhancing front-end applications, coding, bug fixing and integration testing.
• Used Kofax to capture and transform different documents.

Environments: Java, JavaScript, Struts, Tile, CSS, JSP, XML, WebSphere. Eclipse.

Confidential

Java/ J2EE Developer

• Performed CM role using ClearCase for source code control management including code deployment, check-in/check-out source codes, creating code branch, coding version baseline, promoting code to main stream, etc.
• Worked for Invest reporting application. Assisted integration team and deployment team for code releases.
• Worked on some java classes for parsing XML documents.
• Wrote CM documents for the project, including implementation, deployment and back out plan.

Environments: UNIX, ClearCase, Java, XML, Eclipse.

Confidential

Web Application Developer

• Performed bug fixing for several US Confidential projects, including online purchasing, mail tracking, zip code looking up, post office locating, mail holding, redelivery and some other utilities.
• Responsible for implementing and modifying Front End codes to make the application 508 compliant.

Environments: Java, JavaScript, JSP, JSTL, Servlet, Struts, ANT, XML, CSS, HTML, WebSphere, Rational Application Developer, Firebug.

Confidential

J2EE Application Developer

• Participated in the implementation for VisionID application, making Visual Information Record Identification number (VIRIN) that is used in many DOD Defense Media Activity (DMAs) systems more secure through using database and LDAP storing personal sensitive information.
• Developed user interface to expand and collapse the Personnel Relationship in tree structure.
• Developed ant script for building VisionID application.

Environments: Oracle 10g, Java 5, LDAP, JNDI, SQL, Struts 1.3, JSP, XML, ANT, JavaScript, CSS, Eclipse.

Confidential

Software Engineer

• Participated in the maintenance support, including trouble-shooting, bug-fixing, and enhancement for the online version of Manpower Information Management System (MIMS). Responsible for developing some logic for checking DOD personal group and benefits, modified the module for changing personal status,
• Worked as a point-of-contact for customer support group. Researched application issues and identified cause of issues and contacted appropriate groups for issue resolution.
• Analyzed the logic and procedures for the off-line (instead of using database, data are stored in files) MIMS user authentication, parsed XML data files and created user profiles/accounts for window-based off-line MIMS. Profiles including directory structures are residing under Windows system. Singleton design pattern was used.
• Responsible for rewriting, restructuring some off-line MIMS code based on OO concept.
• Assisted QA team for integration test for both on-line and off-line MIMS.

Environments: CVS, JDeveloper, Oracle, JNDI, SQL, Ant, Log4j.

Confidential

Software Engineer

• Participated in analysis, design and development of Site Management (SM) web application.
• Developed ordering/rejecting Front End user interface for SM. Implemented business logic for tracking down order status and notifying users at different levels of order status.
• Developed some utilities for SM application, including automatically uploading/downloading documents, transferring documents to different locations, searching sites based on site ID number and site name.
• Used Hibernate for persisting objects into a relational database. Applied Struts Validation Framework for data validation.
• Performed unit test and wrote test cases for QA team.

Environments: JSP, JSTL, Struts tag libraries, CSS and JavaScript, Oracle, Toad, Netbean.

Confidential

Analyst/ Developer

• Responsible for development for Benefit Accuracy Measurement System (BAMS) reporting module, including Case Review Reporting for the National Office, Office Exceptions Reporting and Reopen History Reporting for Regional Offices.
• Enhanced the Case-Update Data Entry for BAMS using C language.
• Developed UNIX scripts for automation tools and process/operation improvements.
• Supported and enhanced Informix/ESQLC based systems.
• Converted a 4GL based Unemployment Insurance Reporting (UIR) application to an ESQLC based application.
• Participated in the conversion development for BAM from JAM version user interface to 4GL version based user interface.
• Participated in development of Error Rate Reporting for Denied Claim Assistance System (DCAS).

Environments: UNIX, Informix, C, ESQLC, Informix 4gl, JAWS.