Senior System Administrator — Onsite, DoD‑Ready Path
Raytheon
Raytheon in Tucson, Arizona, is looking for an IT Systems Administrator. This role involves administering IT systems in a diverse Microsoft Windows and Red Hat Linux environment, resolving technical issues, and collaborating in a fast-paced setting. Applicants must have a minimum of two years of relevant experience, a university degree, and an active US government issued Secret security clearance. The position comes with a competitive salary and extensive benefits. #J-18808-Ljbffr Raytheon
- Raytheon is hiring a Systems Administrator in Tucson, AZ, to support IT systems across a heterogeneous environment. Responsibilities include providing administration for Windows and Linux systems, troubleshooting technical issues, and ensuring system security compliance...Senior
- Prattwhitney in Tucson, Arizona, is seeking a Principal System Administrator to provide IT systems administration in Microsoft Windows and RedHat Enterprise Linux environments. Candidates must possess strong experience in server administration across these operating systems...Senior
$68.9k - $131.1k
Raytheon is seeking a Senior System Administrator in Tucson, AZ, to provide IT systems administration for critical classified programs. This role... ...knowledge of Active Directory and VMware. The position is onsite, includes relocation assistance, and offers a salary range...SeniorRelocation package- SwiftCruit is seeking a Principal System Administrator based in Tucson, AZ to support critical classified programs. The role involves providing IT systems administration in a heterogeneous Microsoft Windows and Redhat Enterprise Linux environment. Candidates must have...Senior
- Prattwhitney in Tucson, AZ is seeking a Senior System Administrator to support IT systems in a dynamic manufacturing environment. This full-time, 100% onsite position requires an active secret clearance and offers responsibilities in both Windows and Linux environments....SeniorFull time
- Prattwhitney is seeking a Senior System Administrator in Tucson, AZ, focusing on providing IT systems administration in a heterogeneous Microsoft Windows and Redhat Enterprise Linux environment. The role demands collaboration with multiple teams to solve complex IT infrastructure...Senior
$57.2k - $108.8k
Position Role Type: Onsite U.S. Citizen, U.S. Person, or Immigration Status Requirements... ...clearance Security Clearance Type: DoD Clearance: Secret Security Clearance Status... ...on day 1 What You Will Do Provide IT systems administration in a heterogeneous Microsoft Windows...SeniorTemporary workRelocation packageFlexible hours$68.9k - $131.1k
...America | Location: Tucson, AZ | Position: System Administrator, High Performance Computing (HPC) - P2 Senior Analyst Role Type: Onsite | Citizenship: U.S. Citizen required | Clearance... ...Windows Server environment. Must obtain DOD Directive 8140 / 8570 certifications within...SeniorTemporary workRelocationRelocation packageFlexible hours$68.9k - $131.1k
...801 (External Site) Position Role Type: Onsite U.S. Citizen, U.S. Person, or Immigration... ...threats, secure the integrity of our systems and support IT infrastructures around the... ...world. What You Will Do: Provide IT systems administration in a heterogeneous Microsoft Windows and...SeniorFull timeTemporary workWork experience placementWork at officeRemote workWorldwideRelocation packageFlexible hours$68.9k - $131.1k
...Job Summary Position: IT Systems Administrator (Onsite) – Tucson, AZ. Post Date: 2026-06-25. Requires U.S. citizenship and an active, transferable DoD Secret clearance. 100% onsite, with up to 10% domestic travel. Responsibilities Provide IT systems administration in a...SeniorTemporary workRelocation packageFlexible hours$132.4k - $251.6k
...Location: Tucson, AZ Job Type: Onsite; Security Clearance: U.S.... ...required, prior SW Sec Clearance (DoD Secret). Job Responsibilities... ...Develop CONOPS Develop & Refine System Architecture Develop & Refine... ...Critical Design Review, or Test Readiness Review Preferred: Post...SeniorTemporary workWork experience placementRelocation packageFlexible hours- Raytheon is looking for a Senior System Administrator in Tucson, AZ to provide IT systems administration in a diverse environment. This role requires experience with Windows and Linux operating systems, alongside an active security clearance. Key responsibilities include...Senior
- Prattwhitney is seeking a Principal System Administrator to provide IT systems administration in a heterogeneous environment, including Microsoft Windows and Red Hat Linux. You will support systems operational 24/7, requiring occasional out-of-hours work. Preferred candidates...SeniorCasual work
- Prattwhitney is seeking a Senior System Administrator to provide IT systems administration in Tucson, AZ. The role demands U.S. citizenship and an active Secret security clearance. Candidates will engage in troubleshooting, implement RAID, and collaborate in fast-paced...SeniorFlexible hours
$68.9k - $131.1k
We are hiring for a Systems Administrator to join our Digital Technology (DT) team in Tucson, AZ, ensuring Raytheon teammates across the globe can... ...enterprise backup/recovery tools. Qualifications We Value DoD 8140 / 8570 certification requirements (CompTIA Security+ CE...SeniorTemporary workCasual workFlexible hours- SwiftCruit is seeking a dedicated IT Systems Administrator in Tucson, Arizona. This role requires an active U.S. government issued Secret security... ...than 2 years of experience. The position is full-time and onsite, with opportunities for relocation assistance offered. #J-1...Full timeRelocation package
- ...~ MULTI PURPOSE FAC 928 Position: Onsite Network Administrator, Senior Analyst (P2) Join a high impact team... ...and long-range planning for in-house systems. Assist with coordination of third-... ...compliance, and network refreshes. Current DoD Top Secret level security clearance....SeniorRelocationRelocation packageWeekend workAfternoon shift
$68.9k - $131.1k
...Senior System Administrator – Tucson, AZ (Onsite) U.S. citizenship is required. This is a U.S.-based role demanding an active and transferable Secret security... ...). Experience with NISPOM, JAFAN, JSIG, DFARS and/or DoD/RMF. Experience in Windows Server environments. Experience...SeniorTemporary workRemote workRelocationFlexible hours$92.3k - $166.85k
...Chinook Program is currently seeking a Senior Systems Administrator. As a senior member of our IT... ...hardening, and patching in compliance with DoD STIGs and agency policies. Monitor... ..., incident response, and operational readiness activities. Basic Qualifications...SeniorContract workLocal areaImmediate start$107.5k - $204.5k
Senior Principal High Performance Computing (HPC) Administrator (Manager, Information Workplace Services - P4) Raytheon... ...Services | Tucson, AZ | Onsite Position Security Clearance: DoD Secret (Active; requires... ..., software, and operating systems. Perform OS tuning to maximize...SeniorTemporary workFlexible hours- Leidos is seeking a Senior Systems Administrator to manage, support, secure, and optimize mission-critical systems, particularly in Tucson, Arizona. This role involves leadership in IT operations, mentoring junior staff, and ensuring system reliability for geospatial intelligence...Senior
- ...Tucson Electric Power Company is seeking a motivated Desktop Support Technician to provide comprehensive IT support. You will handle onsite diagnostics for desktop issues and manage user workstations, while ensuring prompt technical solutions in a dynamic environment....Senior
- Overview Senior System Administrator, Tucson, AZ. Must have an active secret clearance. Full-time, 100% onsite. Travel up to 10% per year. This position supports a manufacturing effort... ...clearance required on day 1. Preferred: DoD directive (DoDD 8140/8570) certification...SeniorFull timeRelocation packageFlexible hoursShift work
- Raytheon is seeking a Senior Network Administrator in Tucson, Arizona, responsible for ensuring the smooth operation of classified network infrastructure... ...the installation, maintenance, and support of network systems. Candidates must have a University Degree or equivalent...SeniorRelocation package
$132.4k - $251.6k
...05 Position Role Type: Onsite U.S. Citizen, U.S. Person... ...Clearance Type: DoD Clearance: Secret Security... ...more secure world. The Systems Engineering and Test Capabilities... ...is currently hiring a Senior Principal Systems... ...Design Review, or Test Readiness Review Qualifications...SeniorTemporary workWork experience placementInterim roleCurrently hiringWork at officeRemote workRelocation packageFlexible hours$86.8k - $165.2k
Overview Position: Onsite, Tucson, Arizona. Requires U.S. citizenship and an active DoD Secret clearance. Security clearance must... ...prior to start. At Raytheon, the Systems Engineering & Test... ...such as design reviews, test readiness reviews, and technical documentation...SeniorTemporary workFlexible hours$86.8k - $165.2k
Prattwhitney in Tucson, AZ is seeking a Senior Engineer for Electrical Fuze & Initiation Systems. This onsite role involves applying advanced technologies for missile system integration and collaboration with clients and subcontractors. The ideal candidate has at least...SeniorFor subcontractor- Raytheon is looking for a Senior Network Administrator (P2) to ensure the smooth operation of classified network infrastructure in Tucson, Arizona. Applicants must have a minimum of 2 years of relevant experience and an active US Secret security clearance. The role involves...SeniorRelocation package
- Prattwhitney is seeking a Systems Administrator to join our Digital Technology team in Tucson, AZ. In this role, you will support IT systems in a heterogenous environment, ensuring efficient operation and security of our systems. The ideal candidate will have a University...Flexible hours
- SwiftCruit is seeking an IT Systems Administrator for an onsite position in Tucson, Arizona. The role involves providing IT systems administration in a Microsoft Windows environment, managing virtualized systems, and maintaining 24/7 operations. Candidates must possess...Relocation package
Do you want to receive more vacancies?
Subscribe and receive similar vacancies to Senior System Administrator — Onsite, DoD‑Ready Path. Be the first to apply!
- hpc system administrator Tucson, AZ
- remote systems administrator Tucson, AZ
- enterprise administrator Tucson, AZ
- IT infrastructure administrator Tucson, AZ
- system admin Tucson, AZ
- systems administrator Tucson, AZ
- computer systems administrator Tucson, AZ
- server administrator Tucson, AZ
- IT administrator Tucson, AZ
- microsoft systems administrator Tucson, AZ

