NSE at F5 Networks
Kingston upon Thames, United Kingdom
NSE at F5 Networks
Kingston upon Thames, United Kingdom
Expertise running networked infrastructure on free and open source software. Original author of the Linux in-kernel romfs filesystem.
(Public Company; 10,001 or more employees; DIS; Internet industry)
February 2007 — August 2008 (1 year 7 months)
• Supporting Linux/Java based shared web publishing and -serving environments for major non-domestic agencies
• Deploying, troubleshooting, monitoring and development support of Java applications on Linux (Tomcat, iPlanet, weblogic, resin)
• Troubleshooting, capacity planning, monitoring services in several data centers (HP OpenView, SiteScope, cacti)
• 7x24 on call/2nd-3rd Level level support for incidents/inquiries, including MS-SQL, mysql, Red Hat Linux & Windows 2000/2003
• Following ITIL based processes to handle incidents/configuration management (including HP ServiceDesk, Remedy and Trac)
(Telecommunications industry)
April 2006 — January 2007 (10 months)
• Pre-sales demonstration of VoIP softswitch, holding training about advanced VoIP features
• Building/customising softswitch configuration for client projects; working on Centrex/VR features, call authentication/billing, and specialized requirements
• Troubleshooting VoIP configurations on all levels from networking to device interoperability
(Privately Held; 201-500 employees; Automotive industry)
February 1999 — April 2006 (7 years 3 months)
• Supervising network security, availability of networks; troubleshooting servers, applications, infrastructure (Linux servers across the country, Red Hat, SuSE, Debian and in-house versions, Sparc based Solaris 2.x)
• Implementing and maintaining supporting infrastructure: printing, mail, file, DNS; various supporting/glue scripts (qmail, mailfront, dspam, clamav, Samba 2.x-3.x, djbdns, bind)
• Supporting and debugging, and maintaining intranet applications (Apache 1.x/2.x, mod_perl, perl 5, php 3/4, PostgreSQL 6-8)
• Supporting the in-house e-commerce application; off-line ordering system later replaced by an internet based, and finally a web-shop based one, interfacing the application with the ERP system, and an Oracle DB with parts information
• Operating the Progress 4GL based ERP system (Proteus); backups, tuning