34 Systems Administrator jobs

Philadelphia, Pennsylvania, US (On-site)

Ghostrock, a subsidiary of Three Saints Bay, LLC, and a Federal Government Contractor industry leader, is seeking a Senior Systems Administrator –…

Columbia, Maryland, US (On-site)

Location: On-Site in Columbia, MD Position Type: Full-Time **This position is for active duty military members only who meet the requirements…

Canberra, Australian Capital Territory, AU (On-site)

The US Embassy and Consulates in Australia in Canberra seeks a skilled IT professional to join the Diplomatic Technology Customer Engagement team.

Canberra, Australian Capital Territory, AU (On-site)

About Us CEA is an Australian Commonwealth company that designs, develops, manufactures and sustains advanced active phased array radar systems.

Philadelphia, Pennsylvania, US (On-site)

Ghostrock, a subsidiary of Three Saints Bay, LLC, and a Federal Government Contractor industry leader, is seeking a Senior Systems Administrator –…

Norfolk, Virginia, US (On-site)

Join a team that’s shaping the future of Navy support.

Melbourne, Victoria, AU (On-site)

Join a high‑performance team supporting a secure, mission‑critical environment.

Washington, District of Columbia, US (On-site)

ProSidian Seeks a Cyber Security Testing Network Administrator (SCA Code: -) in CONUS - Mid Atlantic Washington Metropolitan Area (Northern Virginia…

Pretoria, Gauteng, ZA (On-site)

Purpose of the Job: Reporting to the Manager: Cyber Security Operations, the successful incumbent is responsible for the day-to-day technical…

Basingstoke, England, GB (On-site)

Nomios' mission is to build a ‘secure and connected’ future.

Warszawa, Masovian Voivodeship, PL (On-site)

Responsabilities: • Provide operational cybersecurity support by implementing, configuring, maintaining, monitoring, troubleshooting, and upgrading…

Canberra, Australian Capital Territory, AU (On-site)

From A$164K / year

Cyber Security Systems Administrator About the Organisation This Australian technology organisation delivers advanced, mission-critical capabilities…

San Diego, California, US (On-site)

Join a team that’s shaping the future of Navy support.

Madrid, ES (On-site)

Spring Hill, Brisbane, Queensland, AU (On-site)

Brisbane Girls Grammar School – Spring Hill QLD is seeking an experienced Systems Administrator to join our Information Technology team and…

United States (Remote)

$60–85K / year

About Apollo Apollo Information Systems is a cybersecurity services company delivering comprehensive security and compliance programs to…

Doral, Florida, US (On-site)

$89.7–186.3K / year

**This position is contingent upon contract award** SOSi is seeking an Cyber Security Administrator to support mission requirements for a structured…

Reston, Virginia, US (On-site)

Required Qualifications 5+ years of experience in systems administration for Windows or Linux, including troubleshooting, configuration, and security…

Tucson, Arizona, US (On-site)

$35.00 – $53.00 / hour

Posting Close Date Applicants must submit their completed application by 08-23-2026 at 11:59 p.m.

Nashville, Tennessee, US (On-site)

$84.9–146.1K / year

As infrastructure critical to the region’s growth and prosperity, Nashville International Airport ® (BNA®) is a vital asset for Middle Tennessee and…