dod-8140-03 jobs in San Diego

Seeking an experienced Systems Administrator to maintain critical defense enterprise infrastructure in San Diego, including Windows servers, domain controllers, cloud resources, and VMware environments. The role requires dual network and systems administration responsibilities, including TACLANE cryptographic encryptor configuration, troubleshooting site outages, vulnerability remediation (ACAS/Nessus), system hardening, and user account management.…See more Requires 4+ years designing and deploying enterprise Windows infrastructure (AD, DHCP, DNS, GPO, WSUS) and 2+ years in a Network or Systems Administrator role, plus DoD 8570 IAT Level II compliance (Security+ or equivalent).

ManTech seeks a Systems Administrator to maintain critical enterprise infrastructure for national security operations in San Diego, supporting the 0100–0900 morning shift. The role requires administering Windows servers, domain controllers, cloud resources, and VMware environments; configuring and troubleshooting KG-175 (TACLANE) cryptographic network encryptors; performing vulnerability remediation with ACAS/Nessus; and executing rapid incident response and site outage troubleshooting.…See more Candidates must have 4+ years of enterprise Windows infrastructure experience (AD, DHCP, DNS, GPO, WSUS), hands-on TACLANE configuration expertise, and DoD 8570 IAT Level II compliance (Security+ CE or equivalent). The position includes up to 25% travel (CONUS/OCONUS) and requires an active Top Secret clearance with SCI eligibility.

ManTech seeks a Systems Administrator to support national security infrastructure in San Diego, maintaining Windows servers, domain controllers, cloud resources, and VMware environments. The role combines network and systems administration, including configuring cryptographic network encryptors (TACLANE), troubleshooting site outages, performing vulnerability remediation with ACAS/Nessus, and managing user accounts.…See more Requires a Bachelor's degree with 4+ years of IT experience (or equivalent), DoD 8570 IAT Level II compliance, and 2+ years as a Network or Systems Administrator with enterprise Windows infrastructure expertise. Travel up to 25% and an active Top Secret/SCI clearance with polygraph eligibility are required.

ManTech seeks a Systems Administrator to maintain critical national security enterprise infrastructure in San Diego, working a 0100–0900 morning shift with on-call support. Responsibilities include administering Windows servers, domain controllers, cloud resources, and VMware environments; configuring and troubleshooting TACLANE cryptographic network encryptors; performing patch management, vulnerability remediation (ACAS/Nessus), and system hardening; and managing user accounts and ticketing incidents.…See more Requires a bachelor's degree with 4+ years of IT experience (or equivalent substitution), DoD 8570 IAT Level II compliance (Security+ CE or equivalent), 4+ years of enterprise Windows infrastructure design/deployment, and hands-on TACLANE encryptor experience. Up to 25% travel (CONUS and OCONUS) is required.