Benjamin Hansen
Columbus,OH
Summary
Experienced IT Specialist with a wide spectrum of expertise ranging from Network Architecture, Storage, Security and Access Management through hardware lifecycle management, Data Center management, Systems Architecture, Software Reliability and more. Expertise in process analysis and problem-solving combined with a proven track record of successful projects.
Overview
34
34
years of professional experience
Work History
Senior Programmer Analyst
FIS
Milwaukee, WI
04.2011 - 06.2025
- Automation & Engineering: Develop tools and automation scripts to reduce manual work (toil), improve system reliability, and increase efficiency.
- Incident Management: Troubleshoot, resolve, and conduct post-incident reviews ("blameless postmortems") for system-level issues.
- System Monitoring: Monitor availability, latency, and system performance to proactively identify risks and ensure service-level objectives (SLOs) are met.
- Capacity Planning: Analyze system resource usage to forecast capacity needs and scale infrastructure to meet demand.
- Collaboration: Work with software developers to optimize code, improve scalability, and ensure systems are designed for reliability.
- Use tools like Ansible, Jenkins, Openshift and JIRA to automate software deployment
Senior Unix Administrator
NetJets, Inc.
Columbus, OH
12.2008 - 03.2011
- Install and configure new AIX and Red Hat Enterprise Linux servers in the four NetJets, Inc. distributed data centers.
- Monitor and perform daily maintenance on 42 RHEL servers versions 4.x and 5.x.
- Manage Linux kickstart, and AIX NIM to configure automated install environments.
- Monitor and perform daily maintenance on 207 AIX logical partitions (dev, qa, test, prod, d/r).
- Manage AIX virtualization, build VIO servers and AIX LPARs on power5, power6, and power7 hardware (p550, p560, p570, p750, JS22 blade)
- Install and configure Veritas Cluster Server on AIX servers.
- Define and manage VCS resources to support Oracle in highly available failover groups.
- Manage tape backups using TSM.
- Perform on-call activities as they occur.
- Mentor and train junior team members in all activities.
- Implemented security protocols and monitoring systems to safeguard sensitive data and maintain compliance.
Consultant, Unix Administration (at NetJets)
Robert Half Technologies
Columbus, OH
12.2006 - 12.2008
- Install and configure new servers Solaris, Red Hat Linux and AIX in the NetJets, Inc. data centers.
- Monitor and perform daily maintenance on 18 Solaris servers version 2.8.
- Monitor and perform daily maintenance on 34 RHEL servers versions 3.x, 4.x and 5.x.
- Monitor and perform daily maintenance on over 90 AIX logical partitions (dev, qa, test, prod, d/r).
- Configure custom Solaris jumpstart, AIX NIM, and Linux kickstart environments for unattended installs.
- Install and configure Veritas Cluster Server on Solaris and AIX servers.
- Define and manage VCS resources to support Oracle in highly available failover groups.
- Manage tape backups using TSM.
- Perform on-call activities as they occur.
- Manage AIX virtualization, build VIO servers and AIX LPARs.
Consultant, Unix Administration (at Longaberger)
Independent Consultant
Newark, OH
05.2006 - 12.2006
- Install and configure new servers in the The Longaberger Company’s data centers.
- Monitor and perform daily maintenance on AIX and Solaris servers.
- Performance monitoring and tuning of AIX and Solaris servers.
- Define and manage Veritas Cluster Server resources for Oracle high availability failover.
- Perform on-call activities as they occurred.
Consultant, Unix Administration and LDAP administration (at CHASE)
Strategic Staffing Solutions
11.2005 - 05.2006
- Installation of new Solaris and Linux (Red Hat 3.x, 4.x and Suse 9.x, 10.x) servers.
- Performance monitoring and tuning of Red Hat and Suse Linux as well as Solaris servers in the single sign-on environment.
- Deployment of new servers within the CHASE single sign-on environment.
- Configuration and management of Novell eDirectory and Oracle internet Directory to support the CHASE single sign-on environment.
Senior Systems Engineer & Administrator
Nationwide Mutual Insurance
10.1999 - 11.2005
- Nationwide Signon environment is comprised of Sun Solaris 2.8, Microsoft Windows 2000, and Linux (Red Hat and Suse) servers, running Novell eDirectory 8.7.x, Active Directory, and SunOne Directory Server.
- Engineer best practice solutions for customers migrating applications to use LDAP Authentication.
- Mentor new hires to bring them up to speed quickly.
- Performance monitoring and tuning of the Nationwide Signon (LDAP) environment.
- Deployment of new servers within the Nationwide Signon (LDAP) environment.
Senior Security Engineer
Nationwide Mutual Insurance
10.1999 - 11.2005
- Responsible for development of the enterprise authentication infrastructure that enables single signon and portal services.
- Install Solaris and Linux (Red Hat and Suse) servers and LDAP services.
- Performance monitoring and tuning of the LDAP infrastructure servers.
- Assist customers with application connectivity and components running on a variety of platforms including Solaris, HP/UX, AIX and Windows 2000.
Software Specialist II
Nationwide Mutual Insurance
10.1999 - 11.2005
- Technical analyst on several enterprise-level IT projects, including implementing Lightweight Directory Services to consolidate several tertiary data stores and prepare for single sign-on, designing multiple High Availability clusters for database and application uses, and an Enterprise wide data security project that enables PKI infrastructure.
- Provided Tier 2 support for Solaris 2.5 - 2.8 and AIX 4.3.x
- Define and Manage Veritas Cluster Server resources.
- Responsible for generating hardware specifications to meet customer’s needs, and evaluating project requirements to determine best practice solutions.
Software Specialist
Nationwide Mutual Insurance
10.1999 - 11.2005
- Maintained security by implementing multiple firewalls throughout the Nationwide Mutual Insurance Company’s intranet.
- Provided Tier 2 support for Solaris 2.5 - 2.8 and AIX 4.3.x
Systems Engineer
CMHC Systems Inc.
04.1996 - 10.1999
- In-house Local and Wide Area Network support
- LAN/WAN Consulting to the CMHC Systems customers
- Provided Tier 2 AIX (3.5 - 4.3.1) support.
Systems Engineer
AT&T Bell Systems Laboratories
10.1995 - 04.1996
- In-house Local and Wide Area Network support
- Managed 250 development systems for the Audix development group running on AT&T Multiple Application Server platforms and the AT&T System V UNIX operating system
Systems Engineer
Ashland Chemical
01.1995 - 10.1995
- In-house Local and Wide Area Network support
- Managed 3 systems technicians in installation of new systems
- Provided tier 3 support to Ashland Chemical internal help desk
Systems Consultant
White Owl Computers
02.1991 - 01.1995
- Designed and implemented Local and Wide Area Networks for a large customer base
- Integrated and serviced over 200 PC's and servers running a variety of operating systems
- Developed training courses for my customers in application usage and system management
Education
NetJets, Inc.
Columbus, OHundefined
NetJets, Inc.
Columbus, OHundefined
New Horizons
Columbus, OHundefined
Sun
Chicago, ILundefined
Oracle
Orlando, FLundefined
Novell
Columbus, OHundefined
Veritas
Columbus, OHundefined
Sun
San Pedro, CAundefined
United States Army Signal Corps
Fort Bragg, NC01.1989
Skills
- Solaris
- AIX
- Linux Redhat
- Netscape Directory Server
- IPlanet Directory Server
- Oracle Internet Directory
- Novell eDirectory
- Microsoft Active Directory
- LDAP
- VPN
- Firewalls
- Strong communication skills
- Agile methodologies mastery
- Efficient project management
Personal Information
Title: Senior Unix Administrator
Timeline
Senior Programmer Analyst
FIS
04.2011 - 06.2025
Senior Unix Administrator
NetJets, Inc.
12.2008 - 03.2011
Consultant, Unix Administration (at NetJets)
Robert Half Technologies
12.2006 - 12.2008
Consultant, Unix Administration (at Longaberger)
Independent Consultant
05.2006 - 12.2006
Consultant, Unix Administration and LDAP administration (at CHASE)
Strategic Staffing Solutions
11.2005 - 05.2006
Senior Systems Engineer & Administrator
Nationwide Mutual Insurance
10.1999 - 11.2005
Senior Security Engineer
Nationwide Mutual Insurance
10.1999 - 11.2005
Software Specialist II
Nationwide Mutual Insurance
10.1999 - 11.2005
Software Specialist
Nationwide Mutual Insurance
10.1999 - 11.2005
Systems Engineer
CMHC Systems Inc.
04.1996 - 10.1999
Systems Engineer
AT&T Bell Systems Laboratories
10.1995 - 04.1996
Systems Engineer
Ashland Chemical
01.1995 - 10.1995
Systems Consultant
White Owl Computers
02.1991 - 01.1995
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NetJets, Inc.
undefined
New Horizons
undefined
Sun
undefined
Oracle
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Novell
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Veritas
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Sun
undefined
United States Army Signal Corps
NetJets, Inc.