IT Systems Adminstrator II - Linux

Job Description Seeking an experienced IT systems administrator to support classified lab environments that use Linux and Windows networked systems, with expertise in setting up and managing Linux Servers and Workstations and some experience in setting up and managing Microsoft Windows Active Directory, Group Policy Management, and Exchange services.A successful candidate will be a Linux Server lead joining a team supporting internal customers, designing, implementing and managing lab infrastructure to meet the customer requirements. In this role, you will + Build, configure, administer and troubleshoot Linux (and Windows) servers and user workstation hardware and software; design and implement workgroup-scale networks; build and manage authentication, file-share, and other collaboration servers to support groups of heterogeneous client systems. + Work with facilities security staff to develop and apply hardening steps for systems for classified use to NISPOM Chapter 8, FISMA, and other customer standards. + Document system configuration for new and existing systems. Experience with centralized authentication technologies such as LDAP and Active Directory domains in supporting (Windows/Linux) cross-platform clients is desirable. + Perform user account administration, group policy configuration, and role-based access control in Active Directory for a classified environment. + Provide desktop systems administration, including imaging, configuration, troubleshooting, and secure application support. + Manage and monitor virtual server instances (e.g., VMware, Hyper-V), ensuring uptime, performance, and resource allocation. + Lead and track monthly OS and application patching across desktops and servers, ensuring full compliance with security baselines and STIGs. + Maintain domain health, DNS/DHCP, and group policy objects within Active Directory. + Support system logging, event correlation, and incident response efforts within the closed area. + Collaborate with ISSOs and security staff to ensure all system changes comply with RMF and local security policies. + Maintain thorough system documentation, configuration baselines, and change logs. + Support classified system accreditation activities and audits as needed + Respond to occasional off-hours outages and take part in subsequent service restoration efforts. Required Education, Experience, & Skills + US Citizenship + Active Secret Security Clearance and CompTIA Security or equivalent DoD 8570 IAT Level II certification. + 36 years of experience (2 years of experience with a degree) as a systems administrator. + Proficiency in Active Directory, including user/group management, OU structure, and GPOs. + Hands-on experience with desktop system support (Windows OS) and endpoint hardening. + Experience managing virtualized server environments (VMware or Hyper-V). + Familiarity with monthly patching procedures, SCCM/WSUS, and vulnerability remediation. + Strong documentation skills and familiarity with change/configuration management practices. + Perform user account administration, group policy configuration, and role-based access control in Active Directory for a classified environment. Preferred Education, Experience, & Skills + Active U.S. TS/SCI Security Clearance. + 4 years of experience working in a classified environment + Experience with system accreditation (e.g., SSP development, POA&M tracking). + Familiarity with classified lab setups, test bed environments, or R&D support. + Exposure to cross-domain solutions, enclave management, or SAP/SAR environments. + Scripting experience (PowerShell, Python) to automate common sysadmin tasks. + Experience supporting audit and inspection activities Pay Information Full-Time Salary Range: $86580 - $147186 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. IT Systems Adminstrator II - Linux 121348BR EEO Career Site Equal Opportunity Employer. Minorities . females . veterans . individuals with disabilities . sexual orientation . gender identity . gender expression

Created: 2026-02-19