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Systems Administrator Journeyman Security Clearance

Job in Honolulu, Honolulu County, Hawaii, 96814, USA
Listing for: Castalia Systems
Full Time position
Listed on 2026-09-13
Job specializations:
  • IT/Tech
    Systems Administrator, IT Support
Salary/Wage Range or Industry Benchmark: 115000 - 120000 USD Yearly USD 115000.00 120000.00 YEAR
Job Description & How to Apply Below
Position: Systems Administrator Journeyman with Security Clearance

Career Opportunities with Castalia Systems A great place to work. Careers At Castalia Systems Current job opportunities are posted here as they become available.

Systems Administrator, Journeyman

Location:

Fort Shafter, HI

Job Type: Full
- Time

Workplace Type:
Onsite

Clearance: TS/SCI Must be a U.S. Citizen

Job Summary

Castalia Systems is seeking a Journeyman Systems Administrator, to support our client onsite at Fort Shafter, HI.

Roles and Responsibilities
  • Install, configure, administer, manage, and maintain network infrastructure (e.g., routers, switches, firewalls) and Windows physical and virtual server environments/operating systems.
  • Manage user accounts, permissions, and access controls across various systems, networks, and applications: including creating, enabling, provisioning and deactivating user accounts.
  • Monitor system performance, troubleshoot and resolve hardware/software issues, optimizing network performance, manage system backups and recovery processes, and implement necessary upgrades and patches.
Required Qualifications
  • Bachelor’s degree in Information Technology, Computer Science, or a related field (can substitute with Associate’s degree and 4 years of experience, or HS diploma and 6 years of experience).
  • 3+ years of experience in system administration, network administration, or a related role.
  • Excellent problem-solving skills and communication skills, with the ability to interact effectively with both technical and non-technical users and collaborate across multiple teams and external entities.
  • Experience managing multiple concurrent tasks, projects, and priorities to meet customer deadlines.
  • Excellent organizational skills in maintaining documentation of system configurations and procedures, and providing reports on system performance, incidents, and maintenance activities.
  • Experience providing technical support to end users: monitoring system performance, troubleshooting and resolving hardware/software issues, optimizing network performance, managing system backups and recovery processes, and implementing necessary upgrades and patches.
  • Ability to install, configure, administer, manage, and maintain network infrastructure (e.g., routers, switches, firewalls) and Windows physical and virtual server environments/operating systems.
  • Experience with managing user accounts, permissions, and access controls across various systems, networks, and applications: including creating, enabling, provisioning and deactivating user accounts.
  • CompTIA Security+ and/or DoD 8570-compliant IAT Level II Certification.
Preferred Qualifications
  • Experience supporting the Intelligence Community or a DoD, Army, or Joint Staff classified program.
  • Experience as a U.S. Army Information Management Officer and/or coordinating across multiple organizations including Signal Brigades, Army offices, INSCOM, DoD CIO, DIA, GISA, NEC.
  • Ability to assist in planning and executing IT projects, such as system upgrades, migrations, or new technology deployments.
  • Ability to communicate and work collaboratively with team members, government clients, and stakeholders across teams to problem solve and recommend and implement system improvements.
  • Experience with Kanban, Agile, or project management applications and methodologies.
  • Certified Information Systems Security Professional (CISSP), CompTIA Network+, or Information Technology Infrastructure Library (ITIL) certification(s).
Physical Requirements /Work Environment
  • Normal office environment.
  • Travel:
    Less than 5%.
Company Description

Castalia Systems is a proven business partner providing mission critical solutions to the Federal Government. We provide cutting edge solutions from Securing and Managing Data to Systems Engineering and Development. Castalia Systems is a pioneer in…

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