OBJECTIVE:

EXPERIENCE:

12/2015 - Present

Principal Software Architect

• Worked with Ops team to setup cloud environment with Amazon Web Service (AWS).• Gather, analysis, evaluate & recommend different technical alternatives• Assisted project manager with estimation, schedule, priority and resource management. • Working with business analyst and stakeholders, lead development effort with restful web service, angular JS, spring, hibernate to create modern, state of art web system to replace legacy grant processing system.I am responsible for the overall technical architect for 3 FDA modernization projects. My duty included software evaluation, finalizing tech stack, database remodeling, tracking team progress, tutoring junior team members and hands on development. The technology used included Oracle, Spring, Hibernate, Hibernate Envers, Spring Data, Restful web service/JSON with Spring MVC, JWT based security with Single Sign On, and AngularJS on front end.

12/2012 - 12/2015

Senior Consultant/Team Lead

As a tech lead/architect, I worked with project manager, requirement analyst, developers, QA and portal team to deliver portlet development. I was involved in the full lifecycle of the software development. Duties included coordination, architecture, high level & detailed design, hands-on development and technical guidance. Technology: Spring, Hibernate, Spring Portlet MVC, jQuery, WebCenter.• Lead team’s of four java developers for various analysis, design, and development tasks for large scale portlet system. Coordinated with other teams, mentored junior developers.• Performed detailed design utilizing various design patterns such as template method, factory. Documented with class diagrams and sequence diagrams. • Responsible for code implementation using Freemarker, iText to generate PDF documents.• Responsible for identifying current performance bottleneck. Fine tuned SQL and optimized code for improved system performance.• Conducted design and code review, promoted good practices and standards with all aspects of system/software design and integration.• Developed unit test using JUnit which resulted in 80% code coverage.• Provided support, coaching, and mentoring to less experienced team members.• Effectively worked with production support team to resolve any production issue.

3/2011 - 12/2012

Senior Consultant

Worked on the architect, design and implementation of FBI's Next Generation Identification (NGI) project. SOA and message oriented architect was used throughout the system to integrate with various third party and FBI existing legacy systems, such as MorphTrack, MorphBIS, EFCON, etc. SOAP, REST Web services, EJB 2.0/JMS on JBoss was used to implement business components, IBM's ActiveVOS was used for workflow management, JPA/Hibernate was used for persistence, IBM's ClearCase and ClearQuest were used for version control and issue management.

10/2008 - 3/2011

Sr. Consultant/Tech Lead

Worked on DOJ's $12+ million budgeting/forecasting system from the very start. Duties included  requirement gathering, analysis, architecture, design, development and deployment. UML is used to document design outcome and various design patterns are used, such as Singleton, Chain of Responsibility, Template Method, Adapter, Builder,Visitor, etc. The system relies heavily on JBoss Drools rule engine for complex rules implementation. It is built on open source architecture with tools such as Spring, Hibernate, Struts 2.0, Ajax, etc. Utilized WebLogic JMS provider wrapped with Spring JMSTemplate to asynchronously communicate with other components. Maven is used for build/project management. Oracle acts as the backend database. My major responsibility is backend design and development, including business logic, rule creation, data access, etc.

10/2006 - 10/2008

Industry: Computer/IT Services

Tech Lead/Sr. Consultant

Worked for Department of Labor’s OSHA agency’s multi-year, 30m+ project to automate OSHA’s daily business flow. The application supports 8000+ OSHA workers. Integrated various 3rd party COTS on a unified J2EE platform running on BEA Weblogic server. This includesBEA’s Aualogic for process automation, Alfresco for content management, Adobe’s form server for offline processing, BEA’s ALUI portal server for presentation, etc. Other tools used included Spring, Hibernate, Oracle, ClearCase, ClearQuest, IBM’s rational suite of modeling tools, such as RSM, RSD, etc.

5/2006 - 7/2007

Industry: Management Consulting Services

Team Lead/Architect

Worked as an architect/team lead for Savantage Finanacial Service, Inc. for a re-engineering project to convert Oracle form based financial application to web application. Duties included architecture specification, technology evaluation, framework setup, etc. The new application is based on Ajax-enabled Java Server Faces on the front end, with Tomcat server, Spring framework as middle logical tier, Apache iBatis as data persistent tier with Oracle database server.

2/2006 - 5/2006

Industry: Computer Software

Development Lead

Acted as team lead for the NIH eRA project. Provided technical direction to the development team, manage resource allocations, assisted with the project planning. Technologies used include Oracle 10g application server, Oracle 10g database server, Struts as front end. Tools utilized included Rational ClearCase, ClearQuest, Rose, etc.

8/2004 - 2/2006

Industry: Management Consulting Services

Sr. Consultant/Team Lead

Participated in the modernization of student loan servicing project for Department of Education as an on-site consultant with ACS, a fortune 500 company.• Provided technical leadership and guidance to development team. Assisted with project management with resource allocation, task estimation and schedule. Supervised technical resources in the team.• Performed high-level technical evaluation of various architectures and components, such as in house framework vs. open source Spring framework, rule engines (Drools, RuleAid, etc), rich web client based on open source Laszlos vs. Struts based web site, etc. Lead the prototyping efforts with Spring/Hibernate/Struts framework with Oracle database. • Detailed J2EE system design using Rational XDE including class diagram, sequence diagram, component diagrams. Built the system with Oracle 9i, Hibernate 2.0 as persistence layer, WebSphere as application server. Developed and tested session beans, hibernate with DAO for middle service tier. Exposed services via web services to Sibel screens.• Involved in requirement gathering and use case authoring.

2/2004 - 8/2004

Industry: Management Consulting Services

Technical Architect

Served as a technical architect for National Cancer Institute’s Chemoprevention Serious Adverse Event Report System (CSAERS). Major modules include AE reporting, work flow processing, PDF generation and medical coding, CDE processing to integrate with CaBIG (Cancer Bioinformatics Grid). Duties included high-level system architecture, design, implementation, testing and deployment. Various patterns were employed, including optimistic locking, sequence blocks, synchronizer token, factory, chain of responsibility, decorator, builder, etc. Tools used included Rational Suite (ClearCase, ClearQuest, RequisitePro, XDE, etc), UML, RUP, JBOSS, Tomcat, Oracle 9i, Struts 1.1, Eclipse IDE, open source tools such as Velocity, XDoclet, Jakarta Commons/validator, Jalopy, CheckStyle, iText, Junit, HttpUnit, ant, log4j, JDOM, etc.

7/2002 - 2/2004

Industry: Management Consulting Services

Sr. Software Engieer/Architect

* Lead, architect and implemented a web asset management system for the whole NOAA (National Oceanic and Atmosphere Administration) organization. The system was built with J2EE technology on WebLogic 7.0 platform with Ant, struts, log4j, etc. Backend repository was Oracle 9i. * Severed as a lead architect/developer. Duties included high-level system architect, design as well as development/ implementation of J2EE re-engineering for the Dept. of Commerce Financial Analysis and Commitment Tracking Systems (FACTS). Tools used included Rational Unified Process (RUP), UML modeling/Rational Rose, EJB, Jakarta Struts framework, JSP/Servlet, etc. Ant is used to automate the build process and log4j is used for logging. The old financial tracking system is converted to a N-tier web-based system on J2EE platform with Oracle database server, iPlanet Application server running on SunOS. Various design patterns, such as MVC, Singleton, Session Façade, Service Locator, Value Object, Chain of Responsibility, were employed. * Tutor junior developer in the team; coordinate their tasks including design/code review, system integration. * System/technical training for end-users in the transition phase.

4/2001 - 7/2002

Industry: Architectural and Design Services

Senior Systems Analyst/Technical Lead

Involved in various parts of customer relationship management (CRM) for the DirecPC unit. * Participated in the customer care portal/extranet for DirectPC (http://dpc.hns.com). Designed and implemented a framework for generic web interfaces to various kinds of transactional data flow on a Weblogic 6.1 platform. Technology used includes XML/Schema, JSP/Servlet, Session Façade, DAO, JDBC, Java XML API, etc. Data repository is Oracle 8i along with stored procedures/packages. * Architect, design and implemented a remote support portal for DirecWay customers using servlet/JSP, Vantive Java API and Oracle 8i database..

2/1997 - 4/2001

Industry: Management Consulting Services

System Architect

* Constructed the first web community for franchisers (http://www.franchiseplanet.com/) and document management site (http://www.franchisedocs.com/) using Java Servlet, EJB, WebLogic, and SQL 7.0 database along with ServletExec tool. * Built a dynamic content management tool using Java 1.2. Servlet and JDBC are used to access SQL7.0, administrator interface was build using applet, swing, HTML and JavaScript. Created a XML command set and a scripting language for users to setup the site content.* Designed and implemented a 3-tier Intranet application for Sales and Marketing Web Tracking. Functions include contact management, web access statistics. The whole application was written in JDK1.2, middle tier was implemented with Remote Method Invocation (RMI) and Java servlet, JDBC was used to access SQL server. User interface in HTML and JavaScript.* Designed and implemented an intranet based system for GTE long distance customer service. Integrated web, customized activeX controls, SQL database and GTE legacy mainframe system using Visual Basic 6.0, ASP, DHTML, XML, VBScript/JavaScript and Rumba mainframe access control so that user can painlessly access mainframe data by pointing and clicking on the web page. * Designed and implemented a 3-tier intranet call center application for government Health Care and Financial Administration (HCFA) program. MS SQL Server is used as backend data depository, MTS/VB DLL served as middle tier business logic. DHTML, RDS used in the front end to manage the knowledge base and to provide a richer user interaction. The application is currently running on 3 call centers with 800+ concurrent users. * Directed, designed and implemented the first 3-tier Intranet application for Snyder¡¯s GTE business processing. Functions include sale search, rep search, order update, TPV voice file retrieve, etc. Backend is built on Microsoft SQL Server 6.5 with stored procedures, middle tier server is Microsoft Transaction Server (MTS) 2.0 with ActiveX DLL written in Visual Basic 5. Web server is Microsoft Internet Information Server (IIS) 4.0 with Active Server Page (ASP). Front end includes dynamic HTML. ADO is used in ActiveX DLL for all the database access.* Implemented and maintained the commission and personnel system (CAPS) for AT&T consumer and AT&T business processing using VB 5.0 and SQL Server. RDO model, VB classes and stored procedures were integrated together. Input, output and return values are passed between RDO and stored procedures.* Automated the reporting process for AT&T consumer process using VB 5.0, Crystal Report 5.0, RDO and stored procedure. It is used to print 6,000+ pages of report every 2 weeks automatically.

10/1995 - 1/1997

Industry: Advertising and PR Services

Software Engineer

Design, develop and maintenance of database marketing /telemarketing applications using client/server technology. Typical systems include Oracle 7.x , SQL Server 6.5 on UNIX and Windows NT platform as backends and Microsoft Access, Visual Basic as front ends running on Windows 3.x and/or Windows 95. As a team leader, I am in charge of every aspect of projects including AT&T Resources for New Business (http://www.att.com/rnb) , AT&T New & Emerging Laboratories, AT&T Local Service Telemarketing, as well as marketing database systems for ASTRA USA, Orient Cruise Lines, TORO, BASF, etc. Duties included:* Oracle, SQL server backend data processing using PL/SQL, SQR, stored procedures, triggers, etc.* Point and click online query system and ad hoc reporting system on Windows 95 using Visual Basic and Microsoft Access * Data entry systems using Visual Basic, ODBC, Oracle Object for OLE* Online outbound/inbound telemarketing scripting/data capturing system in Microsoft Access/Visual Basic* Oracle/SQL server Database administration including physical/logical database design, user setup, rollback segment management, performance tuning and security management

1/1995 - 10/1995

Industry: Architectural and Design Services

Software Engineer

Job duty included design, develop, maintenance and technical support for application software for inventory control application using PDAs (Personal Digital Assistance). Responsible for data collection (including bar codes), storage, processing and communication between PDAs and host systems.* Designed and developed of an asset tracking system for a diary company with PDAs and PCs. The PDA program is written in C, which includes ISAM databases, report writing, order taking, data collection includes bar code scanning. The host PC program is written in Visual Basic, which can download/upload information directly to/from PDAs through a RS-232 link. The window program on PC maintains the database, which is powered by Microsoft Access engine.* Designed and developed a Route Accounting program on PSION PDAs (Workabout) in C. Included window GUI design, ISAM database programming, host connectivity and bar code scanning ability for real time tracking.* Designed, upgraded and developed a real-time serial (RS-232) communication package PCOMMTM for palmtop computers (PSION Series 3a). Features included VT 100, ANSI and IBM 3270 terminal emulation, modem support, file transfer (ASCII, XMODEM, YMODEM protocols supported), screen capture, etc. The whole package was written in C for extremely fast execution and low level hardware control.* Microsoft Window based communication package between PCs and remote PDAs using Visual Basic including file transfer, remote execution of programs on PDAs from PCs, etc. to install PCOMMTM on PDAs from PCs running Windows as well as to copy protect PCOMMTM on PDAs.

5/1994 - 1/1995

Industry: Architectural and Design Services

Programmer/Analyst

Duties include application software development and upgrade for statistical process control (SPC). * Upgraded the old Lattice C coded program to Microsoft C. Programmed Paradox Engine 3.0 to build a relational database product to replace the previous proprietary database. The menu-driven product QE-2000 has the ability to draw various SPC charts (X-bar, Histogram, u, p, np, c, Pareto, etc.) as well as to communicate with shop floor data collection machines.

EDUCATION:

9/1994

Master's Degree

MS, Electrical & Computer Engineering, September 1994. GPA: 3.9/4.0

Bachelor's Degree

BS, Electrical Engineering, September, 1991. GPA: 3.7/4.0

CERTIFICATION:

6/2016

1/2005

5/2004

7/2001

SKILLS:

Skill Name

Skill Level