DENNIS J. BEHRENS
1421 Millville-Oxford Road 513-868-3733
Debian GNU/Linux 2.x to 3.x
Sun Java Desktop System
Solaris SPARC 2.6 to 10
RedHat Linux 3.x to 6.x
Solaris x86 8 to 10
HP/UX 10.20 and 11.0
BIND
DHCP
NIS
Starfire SSP
SunVTS
Explorer
NetConnect
Sybase Adaptive Server 11.x
Visio 2000
TUSHAUS COMPUTER SERVICES – Milwaukee, WI 2005 – 2006
An independent, full service provider of computer services and products.
Responsible for UNIX Administration and management of 23 Solaris, and 9 Linux servers for the Medical College of Wisconsin.
Recommended a disk storage solution that saved $140,000 over a competitors product.
Instituted a change control process for the UNIX systems to keep the development systems in sync with the production systems.
Recycled into use Sun systems discarded by other departments in order to save money and implement new services.
SUN MICROSYSTEMS, INC. – Southfield, MI 2001 – 2004
Leading provider of industrial-strength hardware, software, and services in more than 100 countries and on the World Wide Web.
Responsible for providing on-site support to customers for both proactive and reactive issues for hardware, operating system, software, applications and networking.
Maintained excellent RAS (Reliability, Availability and Serviceability) minimizing customer outages through system analysis and recommendations of preventative measures.
Educated customers on new products and services to better manage and gather useful data on their environments.
Worked with sales teams to ensure customer’s needs were being met with newly quoted systems.
Installed new systems following standard methodology, allowing easier troubleshooting to fellow engineers and also leveraging company’s collective knowledge to improve RAS.
Managed escalations from first-line technical support and served as liaison between customer and backline engineering / product groups to resolve issues quickly.
Provided customers with customized system patch analysis and recommend changes to maximize RAS and eliminate potential problems.
HARBOR CAPITAL ADVISORS, INC. – Toledo, OH 1996 – 2001
Harbor Capital Advisors, Inc. is an investment adviser to Harbor Fund.
Responsible for UNIX Administration and management of 3 Solaris, 8 HP/UX and 12 Linux servers.
Performed system security procedures including creating central syslog servers, scans and locking down systems.
Evaluated new hardware and vendor products and recommend purchase as well as designing new environment for database servers.
Oversaw Junior Administrators, delegated tasks and trained in new areas.
Took lead role in setting up new Disaster Recovery Office location for 35 people including hardware, software, networking and premises wiring; ensured a smooth transition from Chicago.
Re-engineered system to pass first-ever successful DR (Disaster Recovery) test. Wrote part of and modified DR plans and methodologies to ensure recoverability.
Night Operations Analyst 1996 – 1998
Responsible for System Backups for Sybase, HP/UX, and Novell to ensure that SEC requirements were met for data recovery.
Had access to root (administrator account) to reboot systems and handle minor system maintenance during off hours.
Used COBOL application to enter fund net asset values, fund dividends and money market fund daily interest and posted days trades in shareholder accounting system.
Conceived and set up enterprise-wide NTP (Network Time Protocol) that utilized GPS (Global Positioning System) radio receiver to ensure clock accuracy in meeting SEC regulation 4 pm trading day cutoff.
Coursework towards Bachelor of Science, Applied Computer Science
University of Toledo, Toledo, OH current
Sybase Adaptive Server Enterprise Admin 11.5
Sun Solaris 8 System Administration II
Veritas Volume Manager 3.1
Sun Basic Enterprise 10000 Maintenance
Sun Storage I
Sun Fire Field Maintenance and Support
Hitachi 9910 & 9960 Hardware Maintenance
Hitachi 9900V Software Solutions
Sun Solaris 8 Certified System Administrator
Sun Fire 12k & 15k Administration
Sun Global Resolution (Kepner-Tregoe Process)
Sun Sigma Introduction (Six Sigma)
Sun StorEdge T3 & T3+ Array Installation & Administration
Storage Area Network Implementation & Troubleshooting
PRESENTATIONS:
Features of Debian GNU/Linux 2000
Fundamentals of Networking I & II 2002
History of Window Managers & Demo of “Project MadHatter” 2004
Debian GNU/Linux on SPARC 2004
League of Professional System Administrators 2006 - current