Lead Network/System Administrator
Resume:
DENNIS WESSON
**** **** *****, ******, ******* **622
************@***.***
SENIOR LINUX/UNIX SYSTEM ADMINISTRATOR | TEAM SUPERVISOR
QUALIFICATIONS PROFILE
Highly capable, versatile, and accomplished IT professional with more than 10 years of extensive management experience in planning and implementing all aspects of a Linux/UNIX-based network.
Demonstrated adeptness in network design and configuration as well as user-oriented history; expertise in problem solving with outstanding research skills, able to work efficiently and deliver results even without any solid background or experience in assigned area.
Possess well-honed leadership and interpersonal skills, experienced in supervising various IT professionals, engineers, and Ph.D. holders as well as experts in other technical fields. Reliable team player, capable of working independently and prioritizing tasks, utilizing flexible approaches.
TECHNICAL ACUMEN
Linux System Administration
UNIX (Dec, Sun, HP, and SGI variants) System Administration
Cisco SAN Switch Configuration (MDS9000)
Network Hardware Configuration (Bay Networks, Cisco, Linksys)
iSCSI Legato Networker
EMC CX500 and CX-3 and Navisphere
Windows XP, Vista
Platform LSF
C and FORTRAN Programming
Shell and Perl scripting
Linux Kernel Modification
Security Software including Nmap, TCP Wrappers
Email Software including SendMail and Postfix and Mailing List Software Remote Windowing Applications such as VNC
Configuration Monitoring Software such as Nagios
LDAP
NFS
NIS
EDUCATION
Doctor of Philosophy in Elementary Particle Physics | Duke University ~ Durham, NC
Master of Arts in Physics | Duke University ~ Durham, NC
Bachelor of Science in Physics | University of North Carolina ~ Chapel Hill, NC
Cisco Routing
PROFESSIONAL EXPERIENCE
Senior Software Engineer | Senior Staff Development Support Specialist
Scientific Atlanta/Cisco Systems ~ Lawrenceville, GA 1999–Present
- Serve as the sole administrator, providing expert oversight and direction in all aspects of a network, with approximately 50 hosts used to design application-specific integrated circuits.
- Recommend and facilitate the move from Solaris to Linux systems, implementing Linux test hosts and eventual move to Linux-based hosts.
- Ensure that backup systems are upgraded to enable complete backup processing during weekends using Legato Networker.
- Manage all aspects of host security for network, including planning and implementation, ensuring that systems remain updated on patches and errata.
- Handle configuration of the mail server using postfix for security and conduct research, selection, and submission of purchase orders for network hardware and software.
Key Accomplishments:
- Completed the installation, maintenance and, configuration of both hardware and software as storage capacity grew from a 60GB to the present 20TB and presently investigating data deduplication hardware.
- Organized and executed upgrades to network infrastructure to move to gigabit Ethernet and transferred network information storage from NIS to LDAP.
- Achieved approximately 99.9% uptime, conducting research and implementing changes to systems such as hardware/software upgrades to constantly ensure and improve network availability, speed, and reliability, given its 24/7 active usage by engineers around the world.
- Wrote Perl scripts to implement network changes as well as configured and maintained LSF workload management system.
- Handled the monitoring and correction of bottlenecks in NFS access speed of data; researched GFS and implemented hosts to test a GFS configuration; and gave inputs in the hiring of IT personnel.
- Provided helpdesk services for users of the Linux network, including researching and implementing request tracking software to streamline the submission and keep track of requests
- Maintained software that controlled nightly mirroring of all tier 1 data
- Configured and maintained a Flexlm license server for ASIC tools that was used by engineers company-wide
- Coordinated with the IT group of a business partner of the company as well as the company’s corporate IT to create a branch office for the business partner inside the company premises
EPA Contractor/ Team Member
CSC/OAO/Dyntel Corporation ~ Athens, GA 1995–1999
- Supervised system administrators accountable for all Unix systems (mix of Solaris, Irix, HP-UX, Ultrix, and Tru64 Unix), Windows servers, as well as the design and implementation of the campus network.
- Provided expert guidance to all Windows, UNIX, and Network personnel, directing and monitoring the proper maintenance, optimization, and troubleshooting on Windows domain controllers, file servers, and print servers as well as UNIX servers and workstations.
- Managed and manned the UNIX help desk; led team in the migration of Windows e-mail system to Lotus Notes as well as migration from 10Mb to 100Mb LAN; and led use of system policies to push software installation to clients.
- Handled the installation, configuration, maintenance, and backups of Windows and Unix RAID Arrays.
Key Accomplishments:
- Rendered supervision to the group that facilitated smooth e-mail transition, network infrastructure transition and server administration which received commendation from customers and the national office, leading companies with contract to consider Athens as one of their top sites.
- Successfully administered security measures for the site, becoming the first site to detect an outside attack among all EPA systems.
- Utilized low cost solutions (including freeware where appropriate), gathered through diligent research to address network needs.
EARLIER CAREER
Research and Development Engineer, Physics Department
Duke University ~ Durham, NC 1994–1995
Senior Research Associate, Department of Physics and Astronomy
University of Massachusetts ~ Amherst, MA 1990–1993
AWARDS
OAO Manager’s Award for Outstanding Performance and Contributions in support of the EPA FAIR Contract
Written Commendation from National Office for outstanding performance of team members in response to
IT concerns in Athens
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