Engineer Maintenance
Resume:
Charlie Lorance III
********@*****.***
Experience
Optiver US, LLC Chicago, IL
Sr. Linux System/Application Engineer July 07–July 09
Lead Engineer for the architecture and implementation of a 600+ server, Linux based high frequency
trading infrastructure
High performance computing, benchmarking, and kernel tuning.
Build and maintenance on a custom Linux supporting high volume electronic trading
Researched and implemented numerous latency optimizations (including microsecond communications)
Extensive Packet/Network analysis for performance tuning and optimization
Architected and implemented a new monitoring system based on ZenOSS (upgraded from Nagios).
Net App Filer Storage and NAS administration. NFS configuration and ongoing maintenance
Advised on best practices and spearheaded a project upgrading from various Linux distributions to
RHEL 5
Maintained all system builds with Cobbler, Puppet and initially Red Hat Satellite.
Calyon Financial Chicago, IL
E-Trading Systems Engineer May 06–July 07
Installed, maintained, and proactively managed Electronic Trading Servers, Gateways and Networks (TT,
PATS, GL and ULLink)
Managed global sites including London, Paris, Singapore, and Tokyo.
Project Lead for building entire TT 7x environment from ground up
Coordinated with ISV’s as well as network/hardware specialists to resolve electronic trading issues
Setup and installed ITRS TradeWatch monitoring system
R.J. O’Brien & Associates Chicago, IL
Network Administrator 2004-2006
Implemented and managed WAN connections for both internal and customer/vendor use
Site administrator of all LAN services (DHCP, DNS, WINS, routing, switching, and RAS)
Installed/Maintained Sun, Linux, Win 2k/2k3, and AS/400 operating systems
Implemented Cisco VPN
Managed and resolved connectivity issues with Exchanges including CBOT, CME, and NYMEX
Supported internal and external users with desktop related issues.
CSS Services/ Refco / Zap Futures Chicago, IL
Systems Administrator 2002-2004
Supported network for online trading application
Assisted customers with network related issues
Responsible for maintenance of numerous production servers
Responsible for proprietary software testing
Education
1997-1998 Mott College Fenton, MI
Maintained 3.5 GPA
Worked extensively in Computer Science courses
Tested out of second year courses
2006 Red Hat Chicago, IL
Red Hat Certified Engineer May 2007 (recertified for ver. 5.2 Jan. 09)
Red Hat Certified Technician December 2006
2004 Sharepoint Experts Bootcamp Anaheim, CA
Certified Sharepoint Expert March 2004
Technologies
Unix/Linux (Red Hat/Fedora, Debian/Ubuntu, Gentoo, Solaris)
BSD (FreeBSD, OpenBSD, NetBSD)
Scripting (Perl, Bash, Ruby)
Monitoring (Zenoss, Nagios, Cacti, HP Openview)
Databases (MySQL, Oracle, Informix)
Configuration Management (Puppet, Cobbler, Red Hat Satellite, CFEngine, Spine)
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