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Systems Administrator
Innovative Defense TechnologiesSan Diego
About The Role: Innovative Defense Technologies (IDT), a leading defense technology company, is seeking a Systems Administrator to be part of our Security team and based out of our San Diego, CA locat
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Toyon ResearchUnited StatesU.S. Citizenship Required.Ability to qualify for a US Department of Defense security clearance required.This is an on-site position located in Goleta, CA.Toyon is seeking an experienced Systems Admini
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TekSynapNew YorkResponsibilities & Qualifications RESPONSIBILITIES Ensure stable operation of in-house software systems and network connections by planning, developing, installing, configuring, maintaining, and optim
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General Dynamics Information TechnologyKey WestJob Overview Transform technology into opportunity as a Systems Administrator with GDIT. A career in enterprise IT means connecting and enhancing the systems that matter most. At GDIT you will be at t
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AmentumUnited StatesWe train like we fight! If you want to be part of a dynamic Team developing engaging and hands-on training solutions, this is the place for you!We are currently seeking a Windows Systems Administrator
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General Dynamics Information TechnologyUnited StatesType of Requisition: RegularClearance Level Must Currently Possess: Top Secret/SCIClearance Level Must Be Able to Obtain: Top Secret SCI + PolygraphPublic Trust/Other Required: NoneJob Family: IT Infr
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Turkey HillUnited StatesSystems AdministratorCome check out Turkey Hill! We're a growing, nationwide company, born and raised in Southcentral Pennsylvania, that has been creating delicious ice cream and beverages since 1931.
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Philadelphia Gas WorksPhiladelphiaPhiladelphia Gas WorksLooking for a challenge and ready to power up your career?Free Health Insurance Options– Free Dental Insurance – Flex Spending - Commuter Benefits - Pension Plan – Parental Leave
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ManpowerGroup Global, Inc.RedmondOur client, a leading technology organization specializing in cloud infrastructure and automation, is seeking a Systems Administrator to join their team. As a Systems Administrator, you will be part o
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ASRC Federal Holding CompanySoutholdPosted Tuesday, March 3, 2026 at 5:00 AMASRC Federal is a leading government contractor furthering missions in space, public health and defense. As an Alaska Native owned corporation, our work helps s
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Bridge CoreHerndonOverview Network Engineer Herndon, VA TS/SCI with PolyAt Bcore, our strength comes from how we deliver impact to the mission. Whether it’s architecting critical IT solutions, producing actionable inte
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ManTech International CorporationUnited StatesDescription & RequirementsShape the future of defense with MANTECH! Join a team dedicated to safeguarding our nation through advanced tech and innovative solutions. Since 1968, we’ve been a trusted pa
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PreservicaAbingdon
Would you like to work with a trail blazing software house? Maintaining internal and cloud environments and building on your sys admin skillset with support from some of the most talented experts in o
Systems Administrator
PreservicaAbingdonWould you like to work with a trail blazing software house? Maintaining internal and cloud environments and building on your sys admin skillset with support from some of the most talented experts in o
Systems Administrator (Systems) III
American SystemsUnited StatesOverviewNow Hiring at AMERICAN SYSTEMSEpsilon, Inc. has joined AMERICAN SYSTEMS! As one organization, we offer expanded resources, streamlined operations, and increased opportunities for growth and de
Systems Administrator (Systems Administration, Associate)
The MIL CorporationLexington ParkClearance Required: Top SecretEducation Required: BA/BS or HS/GED and Equivalent Work ExperienceUS Citizenship: Required Summary The MIL Corporationseeks aSystems Administrator (Systems Administration
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Stratospherec LtdGuildfordSystems AdministratorGuildford offices (Next to train station) and competitive salary depending on experienceStratospherec are working with a Guildford based Enterprise Management software company who
Systems Administrator
- San Diego, California, United States
- San Diego, California, United States
Über
The Systems Administrator will support the management, maintenance, and security of critical virtual and physical infrastructure environments across Linux, Windows, and VMware ESXi platforms. The ideal candidate has strong experience with Red Hat Linux, Windows administration, system hardening, troubleshooting, and maintaining secure, highly available enterprise systems. Clearance & Location Requirements:
All applicants must currently possess an active Secret U.S. Security Clearance.
This is an on-site position. Requiring at least 5 days in office, based out of our San Diego, CA location.
Department Operations
Employment Type Full Time
Location San Diego, CA
Address 2750 Womble Road, San Diego, Suite 200, California, 92106
Open in Google Maps
Workplace type Onsite
Compensation $90,000 - $150,000 / year
Key Responsibilities What You Will Do:
System Administration: Install, configure, secure, maintain, and troubleshoot RHEL 8/9, Windows 11, and Windows Server systems across physical and virtual environments.
Infrastructure Management: Administer VMware vSphere environments including ESXi hosts, vCenter Server, and supporting virtual infrastructure components.
System Maintenance: Perform system patching, software updates, firmware maintenance, and lifecycle management activities across Linux, Windows, VMware, and Cisco infrastructure.
Secure Configuration & Compliance: Implement and maintain DISA STIGs, security baselines, and hardened configurations using tools such as STIG Viewer, Evaluate-STIG, and SCAP Compliance Checker (SCC).
Vulnerability Management: Conduct Tenable/ACAS vulnerability scans, analyze findings, and implement remediation activities including patches, configuration changes, and compensating controls.
RMF & Continuous Monitoring: Support RMF and A&A activities including eMASS updates, security control validation, audit readiness, and continuous monitoring efforts.
Access Control Management: Manage user accounts, permissions, and access controls in accordance with security policies and least-privilege principles.
Troubleshooting & Operational Support: Provide Tier 2/3 support for complex system, virtualization, and infrastructure issues including outages, performance degradation, and configuration problems.
Automation & Scripting: Develop and maintain automation scripts and workflows using Bash, Python, PowerCLI, Ansible, or similar technologies to improve operational efficiency and consistency.
Security Tool Administration: Install, configure, and maintain security and monitoring tools supporting system protection, vulnerability management, and operational visibility.
Collaboration & Documentation: Coordinate with engineering, cybersecurity, and operations teams while maintaining accurate system documentation, remediation tracking, and compliance artifacts. Skills, Knowledge & Expertise Who You Are (Required): Bachelor's degree in Computer Science, Information Technology, Cybersecurity, Engineering, or related field, or equivalent professional experience. 5+ years of systems administration, infrastructure support, cybersecurity, or related experience within enterprise or DoD environments. Security+ CE certification or equivalent IAT/IAM Level I or II certification in accordance with DoD 8140/8570 requirements. Ability to travel up to 20% of the time as needed. Strong experience administering and troubleshooting Red Hat Enterprise Linux (RHEL) and Windows enterprise environments. Experience managing VMware vSphere environments including ESXi, vCenter, Hyper-V, or similar virtualization technologies. Experience with vulnerability scanning, remediation, and continuous monitoring using Tenable Security Center, Nessus, ACAS, or similar security tools. Experience implementing DISA STIGs, system hardening, endpoint protection, and maintaining compliance within regulated or closed network environments. Experience developing automation scripts using Bash, Python, PowerShell, or similar scripting languages. Strong understanding of networking fundamentals including TCP/IP, DNS, VLANs, DHCP, routing, switching, and network troubleshooting. Familiarity with RMF, eMASS, ATO processes, backup and disaster recovery operations, and DoD compliance requirements. Strong analytical, troubleshooting, and communication skills with the ability to coordinate effectively across engineering, cybersecurity, and operational teams.
What Makes You Stand Out: Self-motivated professional with the ability to independently manage multiple priorities, systems, and technical efforts simultaneously in fast-paced or mission-critical environments with minimal supervision. Experience administering and securing containerized environments using Docker, Kubernetes, or similar container orchestration platforms. Experience with infrastructure automation and configuration management tools such as Ansible, PowerShell, Chef, Salt, Puppet, or similar technologies. Familiarity with software deployment and systems management tools such as PDQ Deploy or equivalent solutions. Strong verbal and written communication skills with the ability to collaborate across engineering, cybersecurity, and operational teams.
If you see yourself reflected in this role and are excited about the impact you could make, we encourage you to apply! If you know someone who may be a great fit, please feel free to share this opportunity with your network.
Pay Range*: $90,000- 150,000
*Pursuant to California Senate Bill 1162, IDT is required to disclose the "pay scale" or "pay range" associated with a job posting. Notably, however, this amount may not be reflective of actual compensation that may be earned as pay is dependent on a candidate's experience, skills, and education. The posted range does not include bonuses, commissions, tips, or other benefits. Click here for additional information about Senate Bill 1162. IDT is often looking to place multiple candidates at various levels. Therefore, more than one pay range has been included, commensurate with experience.
Job Benefits Why Work at Innovative Defense Technologies (IDT): IDT is a growing company with a vibrant, entrepreneurial culture. We are headquartered in Arlington, VA with additional offices in Fall River, MA; Mount Laurel, NJ; and San Diego, CA. At each location, our employees work together in a modern, snack-filled, and social office space, designing innovative solutions for our defense industry customers. We offer employees competitive pay and benefits including: Generous benefits package Competitive PTO Paid holidays 401(k) with immediate vesting and matching 9/80 optional schedule (2nd and 4th Friday off every month) Tuition Assistance Reimbursement Program Professional Development Resources Pre-Tax Commuter Benefits Organization-Wide Monthly Tech Connect Events Annual Employee Recognition Awards Regular Social Events and Catered Lunches
EEO Statement:
IDT is an Equal Opportunity employer.
About Innovative Defense Technologies
Innovative Defense Technologies (IDT) is a leading defense technology company focused on rapidly delivering mission-critical software and systems solutions to the U.S. government. The company specializes in automation, digital engineering, and enabling the rapid integration of advanced capabilities into complex weapon and combat systems. These essential solutions empower the warfighter to field, operate, and sustain decisive capability at speed and scale. At IDT, our employees are developing advanced mission-critical outcomes by consistently delivering high-quality results, fostering innovation, applying rigorous problem-solving, and effectively collaborating across multifaceted teams and stakeholders. Grounded in these competencies, IDT translates complex customer priorities into robust software solutions.
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