Mid/Senior Systems Administrator

Job Description
BAE Systems is a global leader in defense, aerospace, and security, dedicated to protecting those who protect us. We operate at the forefront of technological innovation, developing sophisticated systems that ensure national security and operational excellence.
The Opportunity
We are seeking a highly skilled Mid-to-Senior System Administrator to manage and optimize a large, complex, and geographically distributed network environment. This role is designed for a technical professional who excels in high-pressure environments and possesses the agility to adapt to evolving operational priorities.
The successful candidate will oversee multiple air-gapped systems, each with its own distinct domain and supporting infrastructure. This is a pivotal role requiring a blend of strategic system engineering and hands-on technical execution to sustain and upgrade critical capabilities.
Primary Responsibilities

• System Optimization: Install, administer, and optimize server and desktop configurations to ensure continuous, reliable, and efficient operations.
• Security & Compliance: Manage complex server enclaves, including vulnerability assessments, patching, certificate renewals, and Active Directory configurations.
• Technical Problem Solving: Identify and resolve critical hardware and software issues, developing sustainable long-term solutions for recurring operational challenges.
• Infrastructure Documentation: Develop and maintain comprehensive documentation of complex server/network environments to streamline incident resolution and knowledge transfer.
• Stakeholder Communication: Coordinate with end-users and external support personnel regarding outages and upgrades, while providing data-driven recommendations to upper management.

#LI-PB2
Required Education, Experience, & Skills

• Professional Experience: Substantial experience providing direct system administration support to large groups of technical staff, including developers and engineers.
• Technical Proficiency: Minimum of 5 years of hands-on experience supporting both Linux and Microsoft-based servers and workstations.
• Security Hardening: 5+ years of experience in operating system and application hardening, specifically within DISA and high-assurance environments.
• Lifecycle Management: 5+ years of experience in software/hardware deployment, patch management, and robust backup/restore functions.
• Core Competencies: Proficiency in Windows Server 2016, 2019, and Active Directory.
• Travel: Ability to perform local travel and occasional annual CONUS and OCONUS trips.
• Must possess a TS/SCI clearance with polygraph

MDOPS
Preferred Education, Experience, & Skills

• Education: Bachelor's Degree in System Engineering, Computer Science, Information Systems, or a related technical field with 8+ years of relevant experience.
• Specialized Tools: Experience building and maintaining large-scale, distributed Trellix ePO environments.
• Automation: Strong scripting capabilities using SALT and Python.
• Advanced Stack: Hands-on experience with Red Hat 7/8, VMware, Apache Tomcat, IIS, SQL Server, and KVMs.
• Security Architecture: Expertise in security accreditation, PKI, SSP, multi-domain environments, and vulnerability assessment.
• Virtualization & Hardware: Proficiency in client/server virtualization, disk arrays, PowerShell, PowerCLI, HSMs, and NTP.

Pay Information
Full-Time Salary Range: $146670 - $249330
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.