Senior Systems Administrator (Onsite)

Company : BAE Systems
Location : Arnold, MO
Posted Date : 14 October 2025
Job Type : Full Time
Category : IT Operations & Helpdesk
Occupation : Systems Administrator
Job Details
Job Description As a Systems Administrator in an enterprise test organization, the incumbent will be part of a thriving dynamic team of Systems Administrators and IT professionals. The test center support team maintains smooth operation of multi-user computer systems, coordinates with network engineers, monitors and manages system resources, and performs systems security administration functions. To include, but not limited to, setting up administrator accounts, maintaining system documentation, tuning system performance, installing system-wide software and allocating mass storage space. Interacts with users and evaluates vendor products. The incumbent makes recommendations for hardware and software purchases, coordinates installation and provides backup recovery, develops and monitors policies and standards for allocation related to the use of computing resources, and may be assigned responsibility for less experienced staff.
Responsibilities will include:
Full-Time Salary Range: $86460 - $
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 Electronic Systems 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. Electronic Systems (ES) is the global innovator behind BAE Systems’ game-changing defense and commercial electronics. Exploiting every electron, we push the limits of what is possible, giving our customers the edge and our employees opportunities to change the world. Our products and capabilities can be found everywhere – from the depths of the ocean to the far reaches of space. At our core are more than 14,000 highly talented Electronic Systems employees with the brightest minds in the industry, we make an impact – for our customers and the communities we serve.
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.
Responsibilities will include:
- Maintain Active Directory Services Infrastructure
- Administer DNS, DHCP, and other Windows technologies
- Configure/troubleshoot group policies
- Maintain/tune virtualization infrastructure (VMWare)
- Maintain Windows Update Services (WSUS)
- Maintain Assured Compliance Assessment Solution (ACAS) scanning infrastructure and conduct scans when needed
- Build/maintain/tune System Center Configuration Manager (SCCM) infrastructure
- Build/maintain/tune Host Based Security System (HBSS) infrastructure
- Build/maintain/tune Microsoft Exchange Server services infrastructure
- Build workstations/servers to specification based on requirements
- Configure/maintain backend storage fabric (Netapp)
- Configure/maintain NTO networks and switch fabric
- Information systems IAVM/STIG compliance
- Install and configure COTS and GOTS software
- Professional Experience: 5-8 years with a BS/BA degree or 11-14 years with HS diploma (including at least 5 in a recent systems administrator role)
- Must hold a Top Secret/SCI security clearance
- Ability to work with little to no supervision
- Excellent written/verbal communication skills
- Excellent documentation skills
- Ability to lift up to 50-60 pounds
- Windows Server OS technologies
- Windows workstation OS technologies
- Familiarity with user/system environments and environment variables
- Experience with automated software deployments, SCCM/MECM/PDQ Software Deployment Tool
- Batch scripting
- Basic Network troubleshooting, DNS failures, domain administration, pings, network connectivity status’
- Hardware/software troubleshooting
- Remote administration
- License Management
- Backup/Redundancy Management
- Bachelor of Science in a related field
- Experience with Active Directory ad Group Policy
- Experience with VMWare
- Experience with Microsoft Exchange
- Experience with Windows Update Services (WSUS)
- Experience with Host-based Security Services (HBSS)
- Experience with System Center Configuration Manager (SCCM)
- Experience with Assured Compliance Assessment Solution (ACAS)
- Experience with Cloud technology (AWS)
- Experience with Linux (Red Hat)
- Netapp and storage technologies (NAS)
- LAN/WAN, switching technologies
- PowerShell Scripting and automation
Full-Time Salary Range: $86460 - $
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 Electronic Systems 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. Electronic Systems (ES) is the global innovator behind BAE Systems’ game-changing defense and commercial electronics. Exploiting every electron, we push the limits of what is possible, giving our customers the edge and our employees opportunities to change the world. Our products and capabilities can be found everywhere – from the depths of the ocean to the far reaches of space. At our core are more than 14,000 highly talented Electronic Systems employees with the brightest minds in the industry, we make an impact – for our customers and the communities we serve.
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.
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