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Classified Windows System Administrator with Security Clearance

Job in El Segundo, Los Angeles County, California, 90245, USA
Listing for: Aerospace Corporation
Full Time position
Listed on 2026-07-31
Job specializations:
  • IT/Tech
    Systems Administrator, Cybersecurity
Job Description & How to Apply Below
The Aerospace Corporation is the trusted partner to the nation's space programs, solving the hardest problems and providing unmatched technical expertise. As the operator of a federally funded research and development center (FFRDC), we are broadly engaged across all aspects of space- delivering innovative solutions that span satellite, launch, ground, and cyber systems for defense, civil and commercial customers. When you join our team, you'll be part of a special collection of problem solvers, thought leaders, and innovators.

Join us and take your place in space. Join The Aerospace Corporation as a Classified Windows System Administrator (Systems Administration Staff II/III) and play a pivotal role in securing and advancing critical national space assets. In this dynamic role, you will deploy, operate, and maintain our enterprise-scale corporate server infrastructure as part of the high-performing Computational Services team. You will oversee thousands of enterprise and high-performance computing systems across both on-premise and cloud environments, collaborating closely with world-class rocket scientists and engineers to develop cutting-edge solutions to complex challenges in the space enterprise.

In your day-to-day work, you will manage both virtual and physical server infrastructures, ensuring robust system security and adherence to operational best practices. Our team thrives on a shared sense of responsibility and ownership, emphasizing collaboration across diverse, cross-functional groups. If you are passionate about innovative technology, eager to contribute to mission-critical projects, and ready to advance your career in a supportive, forward-thinking work environment, we invite you to apply and join us at the forefront of aerospace innovation.

The selected candidate will be required to work full-time, on-site at our facility in El Segundo, CA or Chantilly, VA. What You'll Be Doing
* Expertly manage and deploy enterprise-grade Windows server systems, ensuring robust performance and reliability in high-demand environments.

* Oversee and optimize virtual server environments and infrastructure operations to maximize efficiency and scalability.

* Implement rigorous system hardening measures and continuous monitoring to maintain optimal security posture and compliance with industry standards.

* Apply critical security updates and remediate system vulnerabilities promptly, safeguarding infrastructure against evolving threats.

* Provide comprehensive support for remote access solutions such as Citrix and Windows Terminal Server, ensuring secure and seamless connectivity for distributed teams.

* Install, operate, and maintain high-performance server hardware and storage solutions, reinforcing a stable and resilient IT foundation. What You Need to be Successful

Minimum Requirements for Systems Administration Staff II:
* High School Diploma or equivalent is required.

* Minimum (3) years of experience in enterprise Windows administration including provisioning, configuration, troubleshooting, performance tuning, and security hardening for classified and unclassified enterprise environments is required.

* Minimum (2) year of enterprise virtualization experience with either VMware or Hyper-V is required.

* Proven ability to articulate ideas clearly and effectively in both written and verbal formats, facilitating seamless collaboration with diverse stakeholders.

* Demonstrated expertise in time management and task prioritization, ensuring efficient execution of responsibilities even in high-pressure environments.

* Ready to embrace change and excel in dynamic work environments, quickly adjusting to evolving organizational needs and challenges.

* A committed professional who takes pride in delivering outstanding customer service while upholding the highest standards of personal and professional integrity.

* Ability to obtain DoD 8570.01-m requirements for IAT Level II personnel such as CompTIA Security+ certification is required.

* This position requires a current and active TS/SCI security clearance, which is issued by the U.S. government. U.S. citizenship is required. In addition to the above, the…
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