Objective

Seek a challenging position as a PHP/JAVA/C# Web software engineer .

Summary OF Qualifications

Motivated professional with five year’s extensive IT experience as php software engineer. Build industry standard data driven web application.

Extensive experience in various database management, troubleshooting, performance tuning and maintenance.

Exceptionally organized with great ability to multi-task.

Excellent team player and a quick learner.

Excellent object oriented programming.

Microsoft certified Professional.

Education

M.S. Computational Science, George Mason University (09/2002-08/2004)

B. S. Clinical Science Anhui Medical University . Hefei, Anhui, China.

SKILLS & Knowledge:

Operating Systems: Unix/Linux(CentOS, Suse, Fedora, Ubuntn, Redhead, BSD), Windows NT.

Language: PHP, Drupal ,Perl,Jquery, C, JavaScript, Unix shell( bash, ksh ), C#, Java, ASP, HTML/DHTML/XML, CSS, XSL, Python.

Databases: MySQL, PostgreSQL, MS SQL Server 2008/2005, Microsoft Access.

Professional Experience

LAMP System admin& Web/Database Developer (PHP) 8/2007–Current

Uversa, Inc. Leesburg, VA

Functioned as team member in php software engineers as size of 4.

Mysql Relational Database design and data modeling of NBTA(National business travel association) format data.

Working closely with system architecture to design the layout of php web application files.

Involved in the Company specific php framework building from ground up.

Php Full life cycle (analysis, design, implement, test,integration, maintenance )web application development to satisfy the Client and internal employee’s need, SDLC.

Involved in the php web login design, authentication and authorization for admin user(5), Client user(300) and hotel user(60000).

multiple-tiers website design and implementation, using php Smarty technique to separate business logic and display logic.

Involved in PHP REST web Services, allow user upload supporting document to other server than main application server to reduce usage of main application server disk space. While the webservice will generate the url string pointed to the online file location. Sqlite database is used on the server side.

PHP SOAP Client side implementation to get Geo data from NAC webservice.

Automation pay procedures through integration with paypal webservice.

Google Map API integration. Using google map Geo-coding and reverse Geo-coding function to address the Longitude and latitude data in the database.

Involved in optimization website on hardware lever, separate the database server and application server ,one specific network card is used only for two server communication.

Optimization website on application lever, redesign php class file to collect information needed on web page.

Optimization website on database level, query optimization, index table, reduce database connection request. Slow query identified by the mysql slow query log.

Design and implement php functionality to remove dupe hotel record in the database.

Various php web applications to easy internal employee to manage client and hotel information. Volunteer hotel management. Client management, hotel profile information management.

Design and implement automation of hotel address Audit system. Research online resource, build clean ISO database for all cities that have population greater than 1000, check the new entry hotel against clean database,human intervention(UI design) is needed if the city of that hotel is not in the clean database.

Involved in Implement the Bulk emailing track system. Catch bounced emails and notify sender, let sender have chance to resend it.

Involved in Design and implement of the file loading system, allow user upload file , before the content of file go into database, administrator have chance to screen it, make sure bad data does not go into the database.

Redesign and implement of price negotiation system between Clients and hotels. Client will initiate the negotiation process, hotel will have chance to accept, reject or sign a counter off back. Client can accept or reject the counter offer.

Implementation of user interface, allow php call external perl function to send the attached data file to company data center.

Involved in Build virtual host website allow different Client have their own domain name to look up their list of pre-booked hotels.

UI design and implementation. Template and theme design according to client need.

Involved in Client side Javascript programming to enrich user experience, Ajax technique is used in the filter functionality, allow user have a much more options than the competitor's website.

Test user interface, application functionality and database access as required by client and users.

Cross browser testing to make sure HTML is valid for IE7 ,Firefox, Opera, Chrome.

Daily debug on PHP website application and database upon client and internal employee need. Delete the irregular data in the database manually.

General system administration functionality of the Enterprise CMS system running on Suse Linux Cluster.

General network administration functionality of the website development environment.

Working on LAMP stack, Supporting open source software Apache, MySQL5, PHP5, reconfiguration of php , apache to make the website PCI compliance.

Maintaining the security of production server and development server, server patch, VPN firewall and iptable rule modification.

Setup and maintenance of LAMP development environment. CVS management.

(perl,bash)Shell&php script to automation server tasks, DB backup, Data reporting, DB cleaning up, spool emailing services. Perl script to dump the mysql database on application server, another perl script will download the backup file. Scheduled crons and server time sync.

File permission management, allow user have appropriated permission to manipulate remote files.

Daily disk space check, process check , server load check on application and database server.

LAMP System Admin &Web/Database developer(PHP) 04/2006-08/2007

NIMH. Rockville, MD

Design and Implement the Clinical form into web format, HTML programming.

Involved in Implement intranet website to assist scientist to store and edit clinical data with MIT graduate.

Implement DB stored procedure function to allow scientist edit and analysis clinical data.

Coordinate the standardization of data management procedures across subgroups within NIMH. Build php functions Facilitate data sharing among scientists. But only data owner can edit it.

Assist senior engineer in recommending and implementing appropriated data structure, computer hardware, OS, database software packages.(LAMP,Linux/Apache/PostgreSQL/PHP) in building this internal website.

Apache 2.0 , SSL configuration, encrypt the data before send it out form web server.

Linux server security hardening. Eliminate the unnecessary demon,disable root remote login. Restriction on ip address to using the internal website.

System and web log analysis .

Research Assistant in Krasnow institute. (04/2009-2006,6)

Assist Neuron scientist to solve differential equations using Computer software.

Run statistics program to assist scientist analysis data.

Professional training 09/2010-09/2011

Nutech Computer Institute. Rockville, MD

C# programming on MS platform using MS SQL 2008 Database.

LINQ and MVC technology.

Client side JQUERY programming.

Windows IIS configuration.

Working with professional software engineer from other company.

Reference:

Available upon request.

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