Senior System Administrator Security Clearance

Position: Senior System Administrator with Security Clearance
Job Description We put our customers first - exemplified by our missions: "We Protect Those Who Protect Us®" and "We Innovate for Those Who Move the World." Sound like a team you want to be a part of? Come build your career with BAE Systems.
BAE Systems is seeking a highly trained and motivated Principal Closed Area Systems Administrator/Information Security Engineer to help lead SIPRNET related tasks and manage classified IT infrastructure operations in support of national security missions. This role is pivotal in ensuring the integrity, security, and availability of systems operating within Sensitive Compartmented Information Facilities (SCIFs) or other closed environments. You will serve as the technical lead for IT services, security compliance, and infrastructure readiness across high-impact, mission-critical programs.

In this role, you will be joining a team supporting internal customers, designing, implementing and managing lab infrastructure to meet the customer requirements while making impacts in the following ways;
* Build, configure, administer and troubleshoot Windows (and Linux) 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.
* Prepare for audits and inspections , stand ups and configurations related to SIPRNET

* Work with facilities security staff to develop and apply hardening steps for systems for classified use
* Install and configure Trellix (McAfee) Linux Agents for endpoint protection and ePO integration.
* Deploy and configure Splunk Universal Forwarders on Linux systems; manage log ingestion and index routing.
* Reset LDAP BIND credentials within Splunk, ensuring connectivity and access control integration.
* Perform VCSA (vCenter Server Appliance) patching and lifecycle operations.
* Apply updates to VMware ESXi hosts, ensuring host profile compliance and uptime.
* Access and navigate the ESXi Direct Console User Interface (DCUI) for low-level host management.
* Perform Exchange operations in a classified environment including user mailbox creation, troubleshooting, and routine maintenance.
* Manage and maintain Net App storage systems, including volumes, snapshots, and secure protocols.
* Operate in VMware vSphere environments, including provisioning, performance monitoring, and resource management.
* Install, configure, and maintain WSUS (Windows Server Update Services) for enterprise Windows patching.
* 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. Required Education, Experience, & Skills
* U.S. Citizenship as required by contract and an active U.S. Secret Security Clearance
* CompTIA Security+ or equivalent DoD 8570 IAT Level II certification
* SIPRNET Experience
* Experience with ACAS security
* 5+ years of experience (3+ years of experience with a degree) of relevant Information Technology or Information Security experience
* Experience with Trellix/McAfee agent installation and EPO integration.
* Hands-on expertise with Splunk Universal Forwarders, indexers, and LDAP integration.
* Experience with VMware infrastructure, including vCenter, VCSA, ESXi, and DCUI access.
* Working knowledge of Microsoft Exchange administration.
* Familiarity with Net App management tools and SAN/NAS storage concepts.
* Solid experience operating within vSphere environments in mission-critical settings.
* 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. Because of the need for consistent, in-person collaboration and/or the requirement to perform all…