Senior Systems Administrator

Company: ExoAnalytic Solutions
Location: El Segundo
Posted on: February 21, 2026

Job Description:

Job Description Job Description Senior Systems Administrator Full-Time | On-Site or Hybrid (No Remote) Location: El Segundo, CA Citizenship: United States citizenship required Security Clearance: Top-Secret or TSI/SCI clearance preferred ABOUT EXOANALYTIC SOLUTIONS ExoAnalytic Solutions is a defense technology company developing cutting-edge sensor signal processing, algorithms, modeling, simulation, and analytics tools to support mission-critical defense and space systems. Our software and sensor technologies enhance the missile and space defense domains and enable faster, data-driven decision-making for national defense. As an employee-owned company, we combine deep technical expertise with a culture of innovation, autonomy, and shared success. Our engineers work at solving problems of global importance. ABOUT THE ROLE ExoAnalytic Solutions is seeking a Senior Systems Administrator to join our growing team supporting our classified environment, including troubleshooting and configuration of Windows servers and workstations. KEY RESPONSIBILITIES Maintain compliance with all classified network rules and regulations Maintain all required classified network documentation reflecting the current operational environment Install and configure Windows operating systems to include Server 2016 and Windows 10. Configure server and workstation hardware according to system requirements. Utilize approved software to manage software patching of servers and workstations. Utilize approved software to manage anti-virus policies and update definitions. Create, modify, and delete user accounts and groups in Active Directory. Troubleshoot server, workstation, and user experience issues. Create and configure virtual machines as necessary. Experience with NTFS file and share permissions. Ensure adequate backup for all recovery scenarios. Develop scripts using PowerShell and other scripting languages for automation. Support network operations and maintain network availability. Take corrective action as necessary or interact with other SME's and vendors to resolve problems. Assist in the evaluation, testing and recommendation of hardware, software, and network configurations. The ideal candidate will be self-sufficient, a quick learner, and must be able to adapt quickly to evolving technology and priority changes. The candidate will also possess the following: Current TS/SCI clearance Ability to work on individual, as well as team-oriented tasks Ability to prioritize competing priorities Ability to be on-call and respond in a timely manner MINIMUM QUALIFICATIONS Bachelor's degree in Engineering, Physics, Mathematics, or a related technical field (or equivalent practical experience) Current TS/SCI Clearance 5 years experience working with a classified network Strong problem-solving and communication skills U.S. citizenship required, with eligibility to obtain and maintain a Top-Secret security clearance PREFERRED QUALIFICATIONS ITIL certification and experience Microsoft Technology Associate (MTA) Microsoft Certified Solutions Associate (MCSA) Microsoft Certified Systems Engineer (MCSE) Certified Ethical Hacker (CEH) SALARY RANGE $120,000 - $150,000 annually Actual level and base salary will be determined on a case-by-case basis and may vary based on the following considerations: job-related knowledge and skills, education, and years of experience. The recruiter assigned to this role can share more information about the specific compensation and benefit details associated with this role during the hiring process. BENEFITS AND CULTURE ExoAnalytic Solutions is a technology and innovation leader providing world-class products and services to the U.S. federal government and commercial customers worldwide. As an employee-owned company, a competitive salary is only one part of your total rewards package. Our comprehensive benefits include: Company-paid medical, vision, and dental coverage 401(k) Retirement Plan with a 6% company contribution (no employee match required) Ample paid personal time off, including holidays Short- and long-term disability insurance and life insurance Additional discounts and perks to support your well-being Flexible scheduling and structured freedom that empower innovation and work-life balance Apply today to become an ExoNaut today! EQUAL EMPLOYMENT OPPORTUNITY ExoAnalytic Solutions provides equal employment opportunities to all employees and applicants for employment and prohibits discrimination and harassment of any type without regard to race, color, religion, age, sex, national origin, disability status, genetics, protected veteran status, sexual orientation, gender identity or expression, or any other characteristic protected by federal, state, or local laws. This policy applies to all terms and conditions of employment, including recruiting, hiring, placement, promotion, termination, layoff, recall, transfer, leaves of absence, compensation, and training.

Keywords: ExoAnalytic Solutions, Tustin , Senior Systems Administrator, IT / Software / Systems , El Segundo, California