Senior Systems Administrator

Job Description

BAE Systems is seeking a Senior Systems Administrator to join the Machine-assisted Analytic Rapid-repository System (MARS) Advanced Development Operations (DevOps) and Sustainment Support (ADOS) program and provide on-site technical and administrative support to facilitate operations of critical MARS infrastructure and services. This effort focuses on providing a comprehensive set of System/ Software Engineering and IT Services to maintain, sustain, enhance, and improve/ modernize MARS.

Please note that this is contingent upon contract award, with an anticipated decision expected by Winter/ Spring 2026.


The Senior Systems Administrator responsibilities include, but are not limited to:

• Manage and maintain the infrastructure that powers networks and operating systems such as UNIX, Linux, and Windows.
• Install and configure hardware and software, manage user accounts and permissions, monitor system performance, troubleshoot (Tier 1-3) issues, mobile devices, and implement and ensure compliance with applicable system security controls.
• Optimize system operations and resource utilization and perform system capacity analysis and planning.
• Ensure IT Assets remain compliant with Identity & Access Control Management (ICAM) policy and communicate and coordinate system changes.

Required Education, Experience, & Skills

• Experience with IT Service Management (ITSM).
• Experience with ServiceNow platform.
• Proficiency in developing and executing SQL queries to troubleshoot and resolve issues.
• Experience with SQL scripting, Java, Windows Server, Linux, Oracle, Tomcat, data backups, and load balancing.​​​​​​
• Knowledge and understanding of Trusted Thin Client and enhanced VDI (e.g., remote GPU and memory scaling).
• Possess a working knowledge and understanding of system administration interdependencies as part of the Service Oriented Architecture (SOA).​​​​​​​
• Level II: Bachelors and 5-8 years of experience or an additional 4 years of experience in lieu of degree.
• Level III: Bachelors and 9-17 years of experience or an additional 4 years of experience in lieu of degree.

Preferred Education, Experience, & Skills

Desired Qualifications:

• IAT certification.​​​​​​​
• ITIL v4 platform certification.

Pay Information
Full-Time Salary Range: $115779 - $196825

Please note: This range is based on our market pay structures. However, individual salaries are determined by a variety of factors including, but not limited to: business considerations, local market conditions, and internal equity, as well as candidate qualifications, such as skills, education, and experience.

Employee Benefits: At BAE Systems, we support our employees in all aspects of their life, including their health and financial well-being. Regular employees scheduled to work 20 hours per week are offered: health, dental, and vision insurance; health savings accounts; a 401(k) savings plan; disability coverage; and life and accident insurance. We also have an employee assistance program, a legal plan, and other perks including discounts on things like home, auto, and pet insurance. Our leave programs include paid time off, paid holidays, as well as other types of leave, including paid parental, military, bereavement, and any applicable federal and state sick leave. Employees may participate in the company recognition program to receive monetary or non-monetary recognition awards. Other incentives may be available based on position level and/or job specifics.


About BAE Systems Intelligence & Security
BAE Systems, Inc. is the U.S. subsidiary of BAE Systems plc, an international defense, aerospace and security company which delivers a full range of products and services for air, land and naval forces, as well as advanced electronics, security, information technology solutions and customer support services. Improving the future and protecting lives is an ambitious mission, but it’s what we do at BAE Systems. Working here means using your passion and ingenuity where it counts – defending national security with breakthrough technology, superior products, and intelligence solutions. As you develop the latest technology and defend national security, you will continually hone your skills on a team—making a big impact on a global scale. At BAE Systems, you’ll find a rewarding career that truly makes a difference.

Intelligence & Security (I&S), based in McLean, Virginia, designs and delivers advanced defense, intelligence, and security solutions that support the important missions of our customers. Our pride and dedication shows in everything we do—from intelligence analysis, cyber operations and IT expertise to systems development, systems integration, and operations and maintenance services. Knowing that our work enables the U.S. military and government to recognize, manage and defeat threats inspires us to push ourselves and our technologies to new levels.

This position will be posted for at least 5 calendar days. The posting will remain active until the position is filled, or a qualified pool of candidates is identified.

Salary : $115,779 - $196,825