Senior Systems Administrator

Cayuse Holdings

. Administer, optimize, and troubleshoot Windows and UNIX systems, including Linux or Solaris .

Posted 9/22/2026full-timePearl Harbor • Hawaii • United StatesSenior💰 $85,000 - $95,000 per yearWebsite

Core Competencies

Role fit

Core Competencies

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

Demonstrates expertise in administering and optimizing Windows and UNIX systems, including Linux and Solaris, while effectively managing system operations and resource utilization. Proficient in troubleshooting complex technical issues and collaborating with vendors to ensure system performance and reliability.

Highest-signal resume keywords

Windows System AdministrationUNIX System AdministrationDoD 8140-Compliant CertificationsTop-Secret ClearanceSystem Capacity Planning

ATS Keywords

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Applicant Tracking System Keywords

Tip: use these terms in your resume and cover letter to boost ATS matches.

Hard Skills

System TroubleshootingCapacity PlanningDiagnostic TestingSoftware InstallationPreventive MaintenanceResource Utilization OptimizationConfiguration ManagementTechnical Problem AnalysisSystem Fault AnalysisCustom System Solutions

Soft Skills

Interpersonal CommunicationOrganizational SkillsAnalytical SkillsProblem-Solving SkillsMultitasking Ability

Tools & Technologies

MS OfficeWordOutlookPowerPointExcel

Certifications & Qualifications

IAT Level II Credentials

Industry Keywords

Windows Operating SystemUNIX Operating SystemLinuxSolarisMainframe SystemsClient/Server SystemsSystem DocumentationTechnical Issue ResolutionBackground Check ComplianceSensitive Information Handling

Tech Stack

Tools & technologies

LinuxUnix

About the role

Key responsibilities & impact

Administer, optimize, and troubleshoot Windows and UNIX systems, including Linux or Solaris
Oversee setup, configuration, and operation of mainframe, mini, or client/server-based business systems
Serve as a subject matter expert for Windows and UNIX operating systems
Plan, implement, and manage custom system solutions
Monitor, analyze, and optimize system operations and resource utilization
Conduct system capacity planning for scalability and performance
Analyze system faults, identify root causes, and resolve technical issues
Perform diagnostic tests and detailed hardware and operating-system problem analysis
Collaborate with vendors to troubleshoot and resolve complex technical problems
Evaluate, install, and manage software through testing and production phases
Review and prepare documentation for system testing, software installation, and configuration
Design and execute preventive maintenance plans
Address system and environment issues to minimize downtime
Collaborate with business units to determine system and environment requirements for multiple projects
Coordinate with vendors on technical issue resolution and updates
Report to the Program Manager

Requirements

What you’ll need

Bachelor’s Degree with 6–8 years of related experience or Master’s Degree with 2–6 years of experience
Considerable experience configuring and administering Windows and UNIX systems (Linux or Solaris)
DoD 8140-compliant certifications (e.g., IAT Level II credentials)
Top-Secret Clearance is required
Must be able to pass a background check; additional checks may be required
Exceptional interpersonal, verbal, and written communication skills
Excellent organizational, analytical, and problem-solving skills
Ability to multitask and prioritize in a fast-paced environment with changing priorities
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
Ability to use computers and office productivity tools with sufficient speed
Must be physically and mentally able to perform duties for extended periods
May require lifting and moving hardware equipment weighing up to 50 pounds
Ability to establish a productive and professional workspace
Ability to sit for long periods while looking at a computer screen

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
May be asked to travel for business or professional development purposes
May be asked to work a flexible schedule which may include holidays
May be asked to work hours outside of normal business hours