ING Direct Spain, Jul. 2009 - Present
Infrastructure's Software Engineer
- Administer softwware infrastructure of WebSphere Application Server, JBOSS AS for direct banking system
ING Direct Japan, Sep. 2008 - Apr. 2009
Technical Analyst WebSphere
- Maintain middleware infrastructure of WebSphere Application Server and WebSphere MQ for core banking system
- Plan, install, configure and troubleshoot large scale WebSphere Application Server ND and MQ in AIX environment
- Perform application software deployment, update, performance tuning and other house keeping activities
- Provide assistant for application development team in problem identification and solving
- Middleware Monitoring System: directly involved in design, develop and implement monitoring system for middleware infrastructure including exception, performance, capacity monitoring
- Application Software Deployment Automation: directly involved in design and implementation system for automatic application software update that ensure fast, reliable, error free deployment with no downtime
Centre of Software Engineering - Vietnam, Dec. 1998 - Jul. 2008
Technical Director
- Managed software development process and quality
- Prepared technical proposal and system architecture
- Provided training/mentoring on software design, pattern, refactoring, testing
- Participated in various development/implementation projects by rotating between different roles according to the need at each project phase (team leader, project manager, business analyst, software developer)
- Border Control System: managed the project to design, develop a J2EE application for immigration department and deploy under BEA WebLogic in major international airports across the country, integrate it with existing backend system using messaging middleware and perform data migration. Responsible for all technical aspects including overall architecture, software development, performance, quality control, server installation and production support.
- Data cleansing for law enforcement agency: led a team to perform cleansing of a massive database of hundreds of million of records. Directly involved in design and development algorithm, data structure and rule engine in C/C++.
- Utilities Billing - Hanoi Water Work Company: Led a team that implemented a distributed billing and customer management system based on ORACLE and JAVA. In charge of overall system design (including custom developed system, IT infrastructure component selection, data migration strategy) and development of data synchronization module using JMS.
- Telecom Billing and Order Fulfillment System: Responsible for implementation of high performance (up to 20,000 event per second), nearly real time event rating engine using C/C++, Tuxedo and database in memory technology.
- Personnel Management Information System - Ministry of Home Affair: Managed the development and implementation the Personnel Management Information System for public sector fund by Swedish Agency for Development Cooperation. The system was developed mainly using ORACLE PL/SQL and ORACLE Database.
- Electronic Library - Institute of Mathematics - Vietnam: Participated in concept definition, architecture and technology selection (ORACLE and PERL).
Centre of Software Engineering - Vietnam, Jul. 1997 - Nov. 1998
Software Developer, Database Administrator, Team Leader
- Performed installation, maintenance, support ORACLE Database System
- Designed, developed and implemented framework/library for data synchronization
- Utilities Billing - Hochiminh Cities Water Supply Company: managed a final phase of the project to implement of billing and customer's care for Hochiminh Cities Water Supply Company using ORACLE PL/SQL and ORACLE Database. Directly involved in development of module for data synchronization between branches and head quarter
- Document management system: Installed, maintained, provided support ORACLE Database System ,Ministry of Science and Technology .
Notia Information System - Czech Republic, Apr. 1994 - May 1997
Software developer, Team leader
- Performed installation, maintenance, support ORACLE Database System
- Participated in various software development projects under different roles team leader, software developer, database administrator, technical support personnel
- Custom developed ERP - Altron Czech Republic: Led development team in the project to develop and implement of ERP for a distribution and retail company in Czech Republic using ORACLE database design and GUI development in Borland Delphi.
- Fixed Asset Management - Eurotel Prague: Participated in design a fixed asset management software for a mobile phone company based in Prague.
- ERP Package Software: Responsible for development and support of C++ part A/R, A/P of ERP package software, that have been deployed to hundreds of customer in Czech Republic.
Metasoft - Czech Republic, Jun. 1993 - Jan. 1994
Software Developer
- Developed, customized software, provided technical support
- Implemented software supporting activities of an accommodation agency
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