# Principal System Administrator Windows Or Linux Jobs 265 principal system administrator windows or linux jobs. Top employers: SpaceX, Anduril Industries, Blue Origin, and 5 more. Salaries from $30K–$500K. Most roles in San Francisco, Costa Mesa, California, United States, San Francisco, CA, US. 265 open roles · page 1 of 18 **Senior Systems Administrator** at Anduril Industries Costa Mesa, California, United States | FULL_TIME | USD 147K–196K/yr [Apply](https://zerogtalent.com/defense-jobs/anduril-industries/senior-systems-administrator-5273134007) | [JD](https://zerogtalent.com/api/agent/job/senior-systems-administrator-5273134007) **Systems Administrator** at Anduril Industries Costa Mesa, California, United States | FULL_TIME | USD 95K–125K/yr [Apply](https://zerogtalent.com/defense-jobs/anduril-industries/systems-administrator-5273142007) | [JD](https://zerogtalent.com/api/agent/job/systems-administrator-5273142007) **Senior Cloud Systems Administrator** at Vantor Remote (United States) | Remote | FULL_TIME | USD 109K–145K/yr [Apply](https://zerogtalent.com/frontier-jobs/vantor/senior-cloud-systems-administrator-R24815) | [JD](https://zerogtalent.com/api/agent/job/senior-cloud-systems-administrator-R24815) **Mission Security Administrator II** at True Anomaly Denver, CO; Long Beach, CA | TEMPORARY | USD 85K–120K/yr [Apply](https://zerogtalent.com/defense-jobs/true-anomaly/mission-security-administrator-ii-5270390007) | [JD](https://zerogtalent.com/api/agent/job/mission-security-administrator-ii-5270390007) **HMI - D&E Software Engineer - Product Security & ADP - Hsinchu, Taiwan** at ASML Hsinchu, Taiwan | FULL_TIME [Apply](https://zerogtalent.com/frontier-jobs/asml/hmi-d-e-software-engineer-product-security-adp-hsinchu-taiwan-J-00354374) | [JD](https://zerogtalent.com/api/agent/job/hmi-d-e-software-engineer-product-security-adp-hsinchu-taiwan-J-00354374) **Principal Platform Software Engineer (Onsite)** at RTX US-CA-EL SEGUNDO-E04 ~ 2006 E El Segundo Blvd ~ BLDG E04 | FULL_TIME [Apply](https://zerogtalent.com/defense-jobs/rtx-raytheon-collins-pratt-whitney/principal-platform-software-engineer-onsite-01882397-1) | [JD](https://zerogtalent.com/api/agent/job/principal-platform-software-engineer-onsite-01882397-1) **Systems Engineer I** at Saronic Austin, TX | INTERN [Apply](https://zerogtalent.com/defense-jobs/saronic/systems-engineer-i-846faa91-763f-4c16-aec5-2cd48830d3ff) | [JD](https://zerogtalent.com/api/agent/job/systems-engineer-i-846faa91-763f-4c16-aec5-2cd48830d3ff) **Principal Engineer – CPU Hardware Telemetry & Silicon Security** at Cyble US / IN / SG / Remote | Remote | FULL_TIME | USD 200K–400K/yr [Apply](https://zerogtalent.com/ai-jobs/cyble/principal-engineer-cpu-hardware-telemetry-silicon-security-118154) | [JD](https://zerogtalent.com/api/agent/job/principal-engineer-cpu-hardware-telemetry-silicon-security-118154) **Classified Cloud & Platform Engineer** at Anduril Industries Washington, District of Columbia, United States | FULL_TIME | USD 142K–188K/yr [Apply](https://zerogtalent.com/defense-jobs/anduril-industries/classified-cloud-platform-engineer-5271233007) | [JD](https://zerogtalent.com/api/agent/job/classified-cloud-platform-engineer-5271233007) **Classified Cloud & Platform Engineer** at Anduril Industries Costa Mesa, California, United States | FULL_TIME | USD 142K–188K/yr [Apply](https://zerogtalent.com/defense-jobs/anduril-industries/classified-cloud-platform-engineer-5269017007) | [JD](https://zerogtalent.com/api/agent/job/classified-cloud-platform-engineer-5269017007) **IT Engineer** at Apex Space Los Angeles | FULL_TIME | USD 104K–130K/yr [Apply](https://zerogtalent.com/ai-jobs/apex/it-engineer-859d254f-a148-4e26-b502-368fb422ab86) | [JD](https://zerogtalent.com/api/agent/job/it-engineer-859d254f-a148-4e26-b502-368fb422ab86) **Senior Cybersecurity Engineer** at Ursa Major Berthoud, Colorado | CONTRACTOR | USD 128K–160K/yr [Apply](https://zerogtalent.com/space-jobs/ursa-major/senior-cybersecurity-engineer-4747301005) | [JD](https://zerogtalent.com/api/agent/job/senior-cybersecurity-engineer-4747301005) **IT Systems Engineer - Millennium Space Systems** at Boeing El Segundo, CA | FULL_TIME | USD 146K–215K/yr [Apply](https://zerogtalent.com/space-jobs/boeing/it-systems-engineer-millennium-space-systems-R2026526283) | [JD](https://zerogtalent.com/api/agent/job/it-systems-engineer-millennium-space-systems-R2026526283) **Teamcenter Administrator - Millennium Space Systems** at Boeing El Segundo, CA | FULL_TIME | USD 166K–244K/yr [Apply](https://zerogtalent.com/space-jobs/boeing/teamcenter-administrator-millennium-space-systems-R2026526282) | [JD](https://zerogtalent.com/api/agent/job/teamcenter-administrator-millennium-space-systems-R2026526282) **Classified IT Asset & Procurement Administrator** at Anduril Industries Costa Mesa, California, United States | FULL_TIME | USD 117K–154K/yr [Apply](https://zerogtalent.com/defense-jobs/anduril-industries/classified-it-asset-procurement-administrator-5267150007) | [JD](https://zerogtalent.com/api/agent/job/classified-it-asset-procurement-administrator-5267150007) [Next page](https://zerogtalent.com/principal-system-administrator-windows-or-linux-jobs.md?page=2) --- *Source: [Zero G Talent](https://zerogtalent.com), the job board for space, defense, AI, robotics and frontier-tech companies.*