Senior Systems Administrator - Windows, UNIX & VMware Expert

Cayuse Holdings; Honolulu (HI); On-site; USD 120,000 - 165,000; Full time

Benefits offered by this job

Medical, Dental and Vision Insurance

Wellness Program

401(k) Retirement Savings Plan with 1:

Job summary

Cayuse Holdings in Honolulu, Hawaii seeks a Senior Systems Administrator to manage the configuration, operation, and optimization of complex business systems, including Windows and UNIX environments, mainframe and client/server setups, across multiple projects.

The ideal candidate has a Top-Secret clearance, strong scripting, virtualization, and cybersecurity experience, plus disaster recovery and vendor liaison skills.

Qualifications

• Bachelor’s Degree or equivalent in a related field with 6–8 years of experience, or Master’s Degree or higher with 2–6 years of experience in system administration, configuration, and optimization.
• Operating Systems Administration: Proficiency in Linux/UNIX Systems (Red Hat Linux, Linux, or Solaris) and Windows Server.
• Virtualization: VMware vCenter expertise and virtual environment management.
• Network and Storage: Experience with NM/EM tool integration, Ethernet enclave switches, SAN/NAS solutions, and TCP/IP protocols.
• Scripting and Automation: Shell scripting (Bash/Perl).
• Cybersecurity Compliance: Implement and maintain DISA STIGs.
• Cloud Platforms: Hands-on experience with AWS.
• Data Management: Backup and recovery processes and SLA/ALP metrics monitoring.
• Knowledge of ITSM and performance monitoring tools.
• Top‑Secret Clearance is required.

Responsibilities

• Supervise and manage the daily activities of configuration, operation, and maintenance of business systems (mainframe, mini, client/server).
• Serve as a technical expert for Windows and UNIX systems (Red Hat Linux, Solaris).
• Optimize system operations and resource utilization per organizational requirements.
• Conduct capacity analysis and planning to ensure scalability and efficiency.
• Troubleshoot system faults with detailed OS and hardware diagnostics.
• Review software, install and test software for mission objectives; interface with vendors to resolve issues.
• Prepare and review technical documentation for systems, test cases, and installation procedures.
• Administer solutions promoting performance, cybersecurity compliance, and effective resource use.
• Plan and coordinate system/environment requirements for individual projects.

Skills

Windows Server

Linux/UNIX

VMware vCenter

Networking & SAN/NAS

Scripting (Bash/Perl)

DISA STIGs

AWS

Troubleshooting

Vendor liaison

Cybersecurity

Education

Bachelor’s Degree or equivalent

Master’s Degree or higher

Tools

BMC ITSM

Performance monitoring tools

System optimization techniques

Job description

Cayuse Holdings in Honolulu, Hawaii seeks a Senior Systems Administrator to manage the configuration, operation, and optimization of complex business systems, including Windows and UNIX environments, mainframe and client/server setups, across multiple projects.

The ideal candidate has a Top-Secret clearance, strong scripting, virtualization, and cybersecurity experience, plus disaster recovery and vendor liaison skills.