SUMMARY:

• A position in a software development and implement environment, where the corporation takes an aggressive approach to provide the user community a quality product.
• Extensive experience in architecture, design and develop complex large - scale J2EE web application. Has very strong software expertise and knowledge of Spring framework and Java open sources, including Spring MVC, Spring Security, Spring AOP, Spring Quartz, Spring integration, Spring batch, Hibernate, Database transaction, Web Service, Restful Web Service, AJAX, XML, JSON and Infinispan /Jgroup/Gossip Router cache, Nexus, Ant/Maven, SVN/Git/Girret, Mongodb/Cassendra, mockito, Spring-boot, Spring-eureka, Spring-netflix, Spring-Feign, microservice, AWS.
• Well experienced in building and leading software development teams up to 10 persons.
• Expert in setting up software development environment for organizations from scratch and instituting development life cycle and quality assurance processes.
• Experience in evaluating technological strength of potential partners and/or competitors.

TECHNICAL SKILLS:

System: HP-UX, IBM AIX, SCO UNIX, OS/2, DG/UX, Sun Solaris 2.5.1.

Language: Java, Java Script, C/C++, AWK, Perl, Shell Script, INFORMIX-4GL, INFORMIX-ESQL/C, Java2EE EJB..

Consultant

Confidential, Torrence, CA

Responsibilities:

• Develop telematics enrollment, CMS portlet on Liferay portal environment. The project use Spring MVC framework.
• Enhance diagnostic data conversion process by using Spring Integration and Drools rules engine.
• Utilize Redis Hash to implement cache/persistent service to improve data inquiry.
• Develop ETL process by using Spring Batch.
• Maintain, enhance existing telematics application such as Command Center, Back Office Integration etc.
• Utilize Junit + Spring-test + mockito to develop unit test for each layer.
• Migrate existing application from monolithic to microservice architect. Build Spring Boot application and use Docker Swarm as container orchestration tool to manage service. Use portainer as UI tool to monitor and manage Docker Swarm service.

Consultant

Confidential, Irvine, CA

Responsibilities:

• Develop router simulation to allow user to review the UI and behavior of the router with multiple simultaneous users without the need for physical hardware.
• Research on how to integrate Cassendra with Spring data, Spring integration, Spring batch, etc.

Sr. Principle Engineer

Confidential, El Segundo, CA

Responsibilities:

• Initiate DRM project which built on J2EE, Spring, Hibernate, DAO, AXIS web service, Java to DCOM bridge, Microsoft DRM and JBOSS platform. Provide DRM encoding services for pay per view and video on demand business line.
• Involved in Analysis and Architectural design, Lead and guide a team of 6 people, providing the technical guidance and support though out the entire lifecycle of the project.
• Architect TV Apps web based application. The project is implemented in Spring framework. It utilizes Spring MVC, AOP, transaction, cache, Restful Web Service, Hibernate, quartz, AJAX and DB2, etc. Tune performance after application in production environment.
• Help other team to transfer old project to robust Spring, Hibernate, Spring MVC and Jersey frame work from ground zero. Reduce 60% code compare to original project, making project easier maintaining and efficient.
• Set up project build environment including Nexus repository site. Create Ant/Ivy or Maven build file to automatically packaging.
• Utilize open source Infinispan, Jgroup and gossip router to implement in-memory data-grid in clustering environment.
• Develop robust scheduler system using Spring/Quartz integration. This module provides capability of start/shutdown/restart task scheduler without shutting down entire web application. The implementation file patent through company patent department.
• Develop TV apps admin tool using Spring MVC, HTML, CSS and Jquery.

Chief Architect

Confidential, Norwalk, CT

Responsibilities:

• Developed a sophisticated suite of manufacturers’ value proposition calculators SMVP . Product is built on Tomcat web server, Mysql database, Macromedia Flash and Java middleware platform.
• Implemented database connection pool, log4j and API framework for product.
• Designed and Provided API to allow SMVP to access customer ERP system.
• Setup load balancing between multiple Apache and Tomcat.
• Adopted Jakarta Digester to handle XML parsing.
• Developed interface API allow core application to communicate with Mapics .net Web Service and SAP application by using AXIS package.
• Re-architect entire application by using Spring/Hibernate/MVC/transaction framework.

Contract/Sr. Software Engineer/Architect

Confidential, Tustin, CA

Responsibilities:

• Developed a web-based Customer Acquisition Support System (CASS) platform that supports seamless transaction processing between multiple broadband supply chain participants. The CASS automates pre-qualification, product and service selection, order processing, order tracking, and facilitates customer care and trouble administration for Cable, DSL, Fixed-Wireless and Satellite broadband services. The package is an n-tier web-based application that is built on JAVA J2EE/EJB, Weblogic server and ORACLE (PL/SQL) database platform.
• Architect frame works for Confidential package. Major design patterns are pool/peer persistent, EJB and MVC (Model, View, Control).
• Set up multiple Weblogic 5.x on Sun Solaris system. Standardized development environment for company.
• Set up iPlanet/Netscape Directory Server (NDS) as LDAP server for user login authentication.
• Provide API to allow channel partners have capabilities to access Confidential core business functionalities by utilizing Java Servlet, JMS, EJB and XML technology.
• Project modeling by using WebGain structure builder.

Contract Employee

Confidential, Maria Del Ray, CA

Responsibilities:

• Analyzed and Customized B2B exchange procurement system based on the foundation of Ariba 7.2 Marketplace package.
• Implement persistent cache for product information in order to improve the performance of data accessing.

Sr. Software Engineer

Confidential, Pasadena, CA

Responsibilities:

• Developed Internet Web-based answer-based application under Java /Oracle 8i environment.
• Wrapped third party search engine which written in ‘C’ with Java JNI technology in order to provide interface to Java application.
• Provided remote interface implementation by using Java RMI.
• Developed EJB session bean to provide access to third party search engine under Gemstone/J application server.

Contract Employee

Confidential, Aliso Viejo, CA

Responsibilities:

• Responsible for designing and developing dental health management system which written in Informix-4GL.
• Researched, prototyped a Java-based 3-tiered application to replace legacy Informix/Fourgen application. Project includes developing Web-based front-end in WebLogic application server environment by using leading edge HTML, JSP, Java Scripts, Servelet and JDBC technology.
• Maintained an Intranet Proposal Tracking system, the Package is written in DHTML/Jscript plus middle-tier MTS transaction business component in an MS-ASP/Visual Interdev environment.

Contract Employee

Confidential, Tustin, CA

Responsibilities:

• Designed new databases and populated the database with public information data.
• Responsible for tuning existing Informix 4GL program or reengineering terabyte database to improve application performance.
• Developed Java mid-tier gateway program to retrieve data through thirty.

Sr. System Analyst/DBA

Confidential, Manhanttan beach, CA

Responsibilities:

• Responsible for providing application programming and development support for Garpac apparel package under Fourgen Informix case tool and C/C++.
• Migrate Informix from 5.x to 7.22 on Sun Solaris 2.5.1, include setup RAID 0 & 1 by using Disk Suite. Tasks include reconstructing DB spaces, mapping major application tables into separate DB space to achieve best performance.
• Acted as System Administrator of Sun Solaris platform. Configured Solaris 2.5.1 on SUN E4000 platform and maintained UNIX system.
• Set up production and development environment; act as gatekeeper of production turnover.
• INFORMIX DBA. Responsible for monitoring performance, troubleshooting, backup/restore, database space purging, upgrading, and security.
• ORACLE DBA, set up Oracle 8 database for Ritcher retail package and perform DBA jobs including PL/SQL development.

Project Leader

Confidential, Tustin, CA

Responsibilities:

• Coordinate project requirements and schedule between MIS and users community.
• Develop tape/data conversion process to import data from tape into system. S/W tools: ESQL/C, X-Window.
• Maintain and enhance dental health management system in areas such as capitation, commission, disbursement and membership etc. S/W tools: Informix-4GL.

Sr. Software Engineer

Confidential, Tustin, CA

Responsibilities:

• Designed and Developed a Hotel management package, including Reservation, Registration, Cashiering, etc. S/W tools: Informix-On Line, Informix-4GL, SQL-Builder, SQR.
• Created communication interfaces to connect PMS with external third party systems via RS232C serial protocol or network communication. Interfaces include: Call Accounting, Point-Of-Sale, PBX, Bank Interface, etc. S/W tools: Informix-ESQL/C, C /C++, Serial Test protocol analyzer.

Sr. Programmer/Analyst

Confidential, Irvine, CA

Responsibilities:

• Designed and developed multi-user loan application, financial management, and communications software in a SCO UNIX environment. S/W tools: C, Novell Btrieve.
• Complete the project of a communication and multiple modem management systems. S/W tools: C, UUCP, TCP/IP protocol.

Sr. System Analyst

Confidential, Los Angeles, CA

Responsibilities:

• Customized Informix-4GL Fourgen accounting package for customers, modules including: Invoice Processing, Accounting Receivable and Posting General Ledger.
• Designed and developed shipping/invoice application for Confidential & Confidential Co. S/W tools: Informix-4GL.
• Designed and developed proprietary TELEX communication package, package supports automatically queue and send/receive telex message, modem pool and auto dial-up, incoming message distributing and exception report. S/W tools: C, B-Trieve, JAM.
• Provided in-house system specialist service for SCCS. Developed shell script for software upgrade/installation.

Confidential

Consultant, Torrence, CA

Responsibilities:

• Migrate POS (Point of Sale) system from TPOS (proprietary DOS) to a XENIX environment.
• Delivery of XENIX migration of file handler library, provide central interface to access data from database. Implementation includes centric file/record access, resource locking, database transaction, and data integrity. Development was utilizing C, UNIX IPCS (Inter-process Communication) technologies.
• Designed and developed the security system for ISP version of the POS system. S/W tools: C, UNIFY, and JAM.
• Developed a set of API library provide Credit Bureau information access capability.