Web and Enterprise (N-tier) Application Design and Development (7 years)
Frameworks: Spring/Hibernate, J2EE (EJB, JSP, Servlet, JAAS, JDBC, JNDI), JBPM

WebServices/XML: Axis/SOAP, XML/XSLT/Schema/DTD, JAXB/JAXP, SAX/DOM

Related Technologies: Ajax, Struts, Java Cryptography Enhancement (JCE), JavaMail, CORBA, HTML, JavaScript, LDAP, SQL, JBoss Rules
Object-Oriented Design and Development (11 years)
Design Patterns, UML (Use Cases, Class/Sequence Diagrams), Entity-Relationship Diagrams (ERD), eXtreme Programming (XP), Test-driven development
Model Driven Development (1 year)
XMI, AndroMDA
GUI Application and HMI Tools Design and Development (15 years)
J2SE, Applet, Swing, AWT, X/Motif

Senior Developer

StreamBurner 3 Project

StreamBurner is a J2EE application that provide service for downloading DVD and other media contents. It is also a Swing-based Java cross-platform application that offers a user friendly front end for downloading and managing media contents as well as burning them to DVDs and CDs. The StreamBurner application will run on Windows XP, Vista, Mac OS X and Linux Ubuntu platforms. My role in this project is to help re-architect the entire system from front end application to back end services. I also help setup a framework for unit testing and for quickly creating a new application server project in Eclipse. This project utilizes the following technologies: Servlet, JSP, Hibernate, JDBC, MySQL. Jetty, Swing, JUnit, Install4j, ProGuard (Obfuscator), Ant. Maven to pull open-source projects. Development enironment is Eclipse. Researched Amazon S3 Cloud Storage technology.

Optical Image Technologies (3/5/07 â�“ 9/19/08)

Architect and Senior Developer

Business Process Execution System (Docfinity 10)

The project is to design and develop a workflow system that executes a business process model created by an interactive designer. The system must work with OIT's document management system and is designed to flow documents and other objects appropriately to the right person. Personally designed the web service API used by the Flex-based interactive front ends such as the BPM designer, defined the XML schema for describing the BPM for the execution engine, and designed and develop the engine layer on top of JBPM to handle OIT specific requirements. The implementation runs within a Spring Framework using typical setter injections and some aspect oriented programming, and also utilizes some standard design patterns such as transfer objects, access objects, assemblers, managers and others. Technologies used in this project includes: Spring/Hibernate, JBPM, Java Annotation, Quartz scheduler, Axis, Ant, JUnit, CruiseControl for continuous integration. The project is run using a variation of Agile Programming methodology.

Financial Solutions (2/1/07 â�“ 2/28/07)

Architect and Senior Developer

Financial Planner

The project is to design and develop a first-class financial planning application within a limited budget and time constraint. The application is for use by financial planners in non-profit organizations servicing the low-income community. Projecting client's financial position is done using a rules engine. Reporting and MS Word document generation is processed and generated using the combined technologies of JAXB, XSLT, HTML, FOP and JFor. Data are stored in a Hypersonic SQL database. O/R mapping is done using Hibernate. This project integrates the following open-source technologies: Swing, JBoss Rules (Drools), Hibernate, Hypersonic SQL, JAXB/XSLT, FOP/JFor.

Pepperweed Consulting (10/1/06 â�“ 1/31/07)

Senior Software Engineer

Service Impact Viewer (SIV)

SIV is a web application that enables a user to graphically visualize the impact of the loss of an IT asset in an organization. The graphics depicts data stored in HP OpenView (Configuration Management server) via interconnected nodes that can be filtered, collapsed and trimmed. Ajax is deployed in other situations requiring dynamic data update but not intense graphics. The system is a 3-tier J2EE application utilizing JBoss 4, Struts, Ajax, Hibernate and Hypersonic SQL. Authentication and authorization is handled using JAAS. The graphical portion is developed using Applet with ILOG Diagrammer.

ING Technology Management Office â�“ Component Services (12/04 â�“ 12/30/05)

Testing Infrastructure Architect and Senior Software Engineer

ia3 Framework Development

ia3 is an MDA framework for quickly delivering an initial implementation from a UML model using a combination of model-generated code and a library of open-source reusable components. The ia3 Framework reduces internal development cost and time. The framework supports J2EE and WebServices using Apache Axis and is portable on WebLogic and WebSphere. Uses XMI 1.1 generated by Rational Rose, Poseidon, MagicDraw, and others. My contributions include:

Architected and implemented a complementary quality-control framework that supports Test Driven Development. Uses: JUnit, Cactus, StrutsTest, and Doclet technologies.
Automated ia3 Framework building, testing, release and notification.
Researched the use of AndroMDA to replace/augment ia3 to satisfy increasing requests for support of Spring and Hibernate, as well as traditional J2EE.

Legacy Framework Support

Maintained and enhanced legacy Java web applications for channeling bidirectional messages between disparate client applications and the appropriate MQ queues for processing via JMS and from disparate client applications to IBM's OnDemand server via OnDemand Web Enablement Kit (ODWEK).

SCON Project Management/App Focal and MSL Point Person

ING was consolidating and relocating all their hardware/software to CO. My task was to shepherd Component Services applications through the Server CONsolidation design and project planning processes.

Group 1/Pitney-Bowes Document Messaging Technologies (11/02 â�“ 10/04)

Senior Software Consultant

Electronic Bill Presentment and Payment (EBPP)

Blue Cross Blue Shields of Arizona (BCBS-AZ) SSO Project

Designed and implemented Single-SignOn (SSO) solution from BCBS-AZ web application to D3A/e2. BCBS-AZ web application is a .NET application. D3A/e2 is Pitney-Bowes/Group 1's J2EE-based EBPP framework. Uses JCE.

Italian Banking Association â�“ MPS (Monte dei Paschi di Siena) SSO and WebServices Project

Designed and implemented SSO framework to D3A for redirecting payment to client bank. Negotiated solutions to interfacing issues with Italian counterpart. Also, designed D3A Web Services (SOAP) for payment messages.

Italian Banking Association EBPP Project

Designed and implemented the interoperability architecture and XML protocol using JAXB/JAXP.

SOAP-based Web Services Siebel Integration Project

Designed and implemented web services using SOAP protocol with JAXM.

D3 Advantage (D3A) Internationalization

Designed and restructured D3Advantage to support internationalization. This includes redesigning logging (using customized Log4j), modifying database schema to support linguistic indices, updating file I/O (including XML) to support Unicode, and updating html to support a multilingual EBPP website.

Pitney-Bowes docSense/Alysis Technologies (4/00 â�“ 3/02)

Senior Software Engineer/Assisting Architect/Build Manager

Electronic Bill Presentment and Payment (EBPP)

D3 Advantage Build Manager, and Assistant to the Chief Architect and Project Leader

D3Advantage is an EBPP framework that helps companies quickly build branded web sites for displaying online bills and processing online payments. Developed using J2EE and is designed to be portable across application servers (WebLogic/WebSphere) and databases (Oracle/IBM DB2). Integrates with LDAP (OID/NDS) for authentication. (April 2001-March 2002)

Product Design. Participated in the design of the system. One technical achievement is a proprietary MVC (model-view-controller) model similar to Struts but allows on-the-fly model update without taking down the server. Views and actions can both be implemented by configuring XML files without altering application logic. Another technical achievement is the XSLT-based generation of cross-platform DAO code. Wrote specifications utilizing UML use cases, class diagrams, sequence diagrams and database ERD for the project (UML tool used is Together/J). Implemented the first-cut of the end-to-end J2EE skeleton framework for the system.

Configuration Management. Designed and setup configuration management system using Continuus, tailored specifically to the D3Advantage development workflow, to manage source code.

Build Management. Designed and developed automatic system for nightly builds, unit tests (JUnit) and release. Automatically builds EAR files for WebLogic and WebSphere. Automatically generates SQL scripts and JDBC code for Oracle and DB2 from schema defined in XML and transformed using XSLT. Automatically creates InstallAnywhere setup program for the entire system.

Developer Tools. Wrote a Java parser that generates EJB remote interfaces from beans. Wrote make script for packaging the EJBs either individually or as one giant JAR file (automatically consolidating all deployment descriptors). Wrote program to setup LDAP directories and attributes from an LDIF file that works for both OID and NDS, and for tearing it down recursively.

General Management. Helped managed overall development process to ensure quality by reviewing and analyzing code regularly for threading issues, memory leak, redundancy, obsolescence, and circular dependencies, while mentoring junior programmers about such issues, and advising the project leader of any such issue if the situation requires it.

WorkOut 2.0 Implementation Team Lead

WorkOut 2.0 (now known as D3Advantage/e2) upgrades WorkOut's middleware from CORBA to J2EE (JSP/ASP, servlets and EJBs on WebLogic 5 and WebSphere 3.5). (June 2000 â�“ April 2001)

Team Lead. Managed a team to upgrade WorkOut from CORBA to J2EE.

Configuration Management. Designed and setup configuration management system using Continuus, tailored specifically to the Alysis' development workflow, to manage source code.

Technical Training. Conducted training session for WorkOut 2.0 for customers.

OFX/IFX Parser

Wrote parser for OFX/IFX. OFX (Open Financial eXchange) and IFX (Interactive Financial Exchange) are standard protocols for exchanging financial data. (April-May 2000)

ISO New England (4/99 â�“ 3/00)

Senior Software Engineer/Team Lead

Energy Exchange Market System

Market System is an online bid and contract management system for the purchase and sale of electrical energy among electric utility companies. It uses Java applet and AWT for its front-end, CORBA for the middleware and Oracle for data. Various tools: Visual CafÃ©, Together/J, etc.

Market System Invoice Subsystem Rebuild. Worked with a team of Java developers and DBAs to revamp the Billing Subsystem. Access to the database is via JDBC. Used UML use cases, class diagrams, sequence diagrams and ERD to design and model the subsystem. Implemented the invoicing wizard applet.

Team Lead. Managed a team to enhance the Market System (moving it to version 2).

University of Massachusetts Legal Studies Department, Architect/Co-developer

LegalSpace - On-line Mediation Software System (Multiple contracts 1997â�“99)

LegalSpace is a web-based interactive graphical system used to assist mediators to resolve conflicts between two parties. The interactive graphical tools are deployed using Java spplets. Processing is done with Java Servlets deployed on MS IIS, and data are stored in MS SQL Server and accessed via JDBC. Product Design. Conceived, co-designed, and co-developed the system.

DataViews Corporation, MA, Consultant (Multiple contracts 1994â�“99)

Provide on-site and porting support of DataViews product to Far East Asian Languages. DataViews is developed and ported to X/Motif on various Unixes and Windows 95/NT.

Marubun Corporation, Tokyo, Consultant (Multiple contracts 1994â�“99)

Provide on-site and porting support to Japanese and other languages of US software products to Marubun and their clients on various Unixes (including Japanese hardware from NEC and Hitachi) and Windows 95/NT.

Pohang Steel Company (POSCO), South Korea, Consultant (1996)

Provide on-site and porting support to Korean of US software products for use in their steel manufacturing process on VAX/VMS. POSCO is one of the largest steel producer in the world.

Mitsubishi Heavy Industry, Tokyo, Consultant (1996)

Provide Spanish port of customized version of DataViews to Mitsubishi for their Spanish customer.

NTT Data (Nippon Telephone & Telegraph), Tokyo, Consultant (1996)

Implemented Japanese language driver for large format HP plotter to print DataViews graphics (NEC/Unix SVR4).

Daewoo Telecom, Seoul, Consultant (1995)

Provide on-site and porting support of DataViews to Korean on native mainframe: DTC9000/SVR4.

Square D, OH, Consultant (1994)

Provide porting support of CRISP to Korean on DEC OpenVMS 5. CRISP is based on DataViews and customized for used in designing electrical networks.

AT&T, GA, Consultant (1994)

Developed Japanese GUI for telecom problem-tracking database on Sun Solaris.

DataViews Graph Widgets and DynaGraphX

Conceived and prototyped DataViews Graph Widgets (1/89). Convinced management of its viability (1990). Led a team to complete its development (1991). Integrated into various IDEs (DynaGraphX, 1991). Product released June 1991. The Graph Widgets is a set of automatically updating graphs displaying data from user-defined external data sources. The architecture is object-oriented after the X Toolkit patterns. (1989-1993)

DataViews Internationalization

Worked with DataViews' Japanese, Korean, Hong Kong and Taiwanese distributors to internationalized the DataViews product. Dealt with issues of input text processing of multibyte strings, output of multibyte strings, various code sets, and localization. Subsequently assisted DataViews' General International Area department in updating the core code to handle the three main Asian languages: Chinese, Japanese and Korean (1989-91). Completed a follow-up trip to further understand the Asian market and internationalization issues. (1993)

Prism Systems Project

Developed a graph layout library using X Toolkit for Prism Systems (part of Northern Telecom). Solved problems in displaying graphs containing nodes with loopback arcs, whose subgraphs may be collapsed or expanded. (1991-93)
Air Canada Project â�“ Developed portions of a flight monitoring system. Solved problem involving the repair of graphics of overlapping objects (such as airplanes and waystations). (1990)

DataViews for X Windows

Co-implemented DataViews' graphics driver under the X Window System using the X11 library (1988-91). Re-implemented using the X Toolkit. (1991). Integrated OSF/Motif and OPEN LOOK widget toolkits into DV-Draw, DataViews' graphics editor for designing user-interface for real-time data monitoring. This involved encapsulating the widget programming model inside the DataViews' own Input Object programming model (1991).

DataViews C++ Project

Created prototype implementation of DataViews in Objective C and C++. DataViews is originally written in C. The prototypes encapsulates key structures as self-aware objects (reflection) (1988). Evaluated NeXTSTEP as a platform (1989). Investigated various object-oriented methodologies and analysis tools (particularly OMTool) as a member of the advanced research group (1993). (1988-93)
Technical Support â�“ Provided customers with technical phone support for DataViews. (1988)

DataViews Hershey Vector Font Project

Implemented text processing and drawing routines for vector text in DataViews. The vector text fonts are based on the Hershey fonts. Issues dealt include: cursor advancing and backspacing of non-proportional fonts, drawing of rotated texts, dealing with character sets larger than ASCII such as Cyrillic and various smaller issues. (1987)