Senior Systems Administrator

Cayuse Holdings

. Supervise and manage daily configuration, operation, and maintenance of business systems, including mainframe, mini, and client/server environments .

Posted 10/28/2026full-timePearl Harbor • Hawaii • United StatesSenior💰 $85,000 - $98,000 per yearWebsite

Core Competencies

Role fit

Core Competencies

Use this summary to align your resume positioning with the role.

Demonstrates expertise in System Administration, Configuration, and Optimization, with a strong focus on Linux/UNIX and Windows Server environments. Proficient in VMware vCenter, AWS Cloud Solutions, and implementing DISA STIGs while maintaining high standards of documentation and communication.

Highest-signal resume keywords

Linux/UNIX Systems ProficiencyVMware vCenter ExpertiseAWS Cloud Solutions ExperienceShell Scripting CompetenceTop-Secret Clearance

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills

System AdministrationConfiguration ManagementSystem OptimizationCapacity AnalysisTroubleshootingPreventive MaintenanceBackup and Recovery ProcessesSLA/ALP Metrics MonitoringDISA STIG ImplementationShell Scripting (Bash/Perl)

Soft Skills

Exceptional Communication SkillsOrganizational SkillsAnalytical SkillsProblem-Solving SkillsAttention to DetailMultitasking AbilityAdaptabilityIndependenceTeam Collaboration

Tools & Technologies

Windows ServerRed Hat LinuxSolarisBMC IT Service Management (ITSM)Performance Monitoring ToolsEthernet Enclave SwitchesSAN/NAS SolutionsTCP/IP ProtocolsMS Office Suite

Industry Keywords

System ConfigurationVirtual Environment ManagementTechnical DocumentationMission Objectives SupportVendor Interface

Tech Stack

Tools & technologies

AWSCloudITSMLinuxPerlShell ScriptingTCP/IPUnixVMware

About the role

Key responsibilities & impact

Supervise and manage daily configuration, operation, and maintenance of business systems, including mainframe, mini, and client/server environments
Set up and maintain Windows and UNIX systems, including Red Hat Linux and Solaris
Optimize system operations and resource utilization
Conduct system capacity analysis and strategic planning for scalability and efficiency
Diagnose and troubleshoot operating-system and hardware faults
Evaluate software during testing phases and install software supporting mission objectives
Prepare and review system documentation, test cases, and installation procedures
Investigate technical challenges and implement innovative solutions
Perform preventive maintenance and necessary repairs
Administer system and environment solutions across multiple projects with diverse schedules
Interface with vendors to resolve trouble calls and system issues
Plan and coordinate system and environment requirements for individual projects
Report to the Program Manager
Perform other duties as assigned

Requirements

What you’ll need

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
Proficiency in Linux/UNIX Systems, including Red Hat Linux, Linux, or Solaris, and Windows Server
VMware vCenter expertise and virtual environment management
Experience with NM/EM tool integration, Ethernet enclave switches, SAN/NAS solutions, and TCP/IP protocols
Competence in shell scripting, including Bash and/or Perl scripting
Ability to implement and maintain DISA STIGs
Hands-on experience with AWS cloud solutions
Experience with backup and recovery processes and SLA/ALP metrics monitoring
Familiarity with BMC IT Service Management (ITSM), performance monitoring tools, and system optimization techniques
Top-Secret Clearance is required
Must be able to pass a background check; additional project or client background checks may be required
Exceptional interpersonal, verbal, and written communication skills
Excellent organizational, analytical, problem-solving, and attention-to-detail skills
Ability to multitask, prioritize, adapt to changing priorities, and learn quickly
Ability to work independently and on a multifunctional team
Ability to handle sensitive and confidential information appropriately
Proficient in MS Office, Word, Outlook, PowerPoint, and Excel
Professional office environment and ability to work onsite in the main office
Ability to perform duties for extended periods, use computer and office productivity tools, and sit for long periods
Ability to lift and move hardware weighing up to 50 pounds
Ability to stand, bend, or work in confined technical spaces
Ability to work flexible or nonstandard hours and travel when required

Benefits

Comp & perks

Medical, Dental and Vision Insurance
Wellness Program
Flexible Spending Accounts (Healthcare, Dependent Care, Commuter)
Short-Term and Long-Term Disability options
Basic Life and AD&D Insurance (Company Provided)
Voluntary Life and AD&D options
401(k) Retirement Savings Plan with matching after one year
Paid Time Off
Flexible schedule may include holidays
Business travel and professional development opportunities