Systems Administrator

Description Provide Domain/Systems Administrator Engineer of the Mission LAN, and oversee the maintenance, optimal function, and patching of the LAN’s operating system, and the GOTS, COTS, and custom software products running on it. Perform system startup, shutdown, backups, and restores and maintain records of the Cartoon operating system upgrades/changes for reporting purposes. Conduct virus scanning and firewall protection of the Mission LAN in compliance with the Sponsor’s ISSM. Provide Data Transfer Officer (DTO) services between UNCLASSIFIED and CLASSIFIED networks as needed by the Sponsor. Coordinate assistance from the Sponsor’s corporate resources when required, if encountering a problem that the Contractor team cannot solve. Ensure security compliance with the Sponsor’s ISSM for all components of the network. Perform other system administration duties as requested by the Sponsor. Basic Qualifications Minimum 3 years experience as a Systems Administrator. Minimum 1 year administering a system with the Sponsor's system security control for Int-A, B, and/or C enclaves. Basic understanding of Windows/Linux. Ability to describe technical items to non-technical users. Experience with scripting languages (Powershell, Bash, Python, etc.). BS degree or higher in Computer Science, Systems Engineering, IT, GIS, or related field. Candidates without a degree may be considered if they have relevant certifications and equivalent professional experience. Must have a current U.S. government security clearance (TopSecret/SCIwithCIor higher) appropriate for the role. Desired Skills Experience building and supporting hybrid infrastructures that securely connect on-premises data centers to cloud. Real‑world experience building infrastructure as a code using tools like Terraform or Ansible. Ability to manage traditional VMs (VMware, Proxmox, Nutanix) alongside containerized environments (Docker, Kubernetes) and Cloud infrastructure. Fluent in managing both Windows Server (Active Directory, DNS, GPOs, PowerShell) and Linux distribution (Debian and RHEL families). Automation: Bare-Metal and VM automation PowerShell and BASH scripting Expertise in managing patching mechanisms of Linux (YUM, DNF or APT) and Windows (Windows Update or WSUS). Experience setting up and maintaining centralized log management systems. Should be fluent in Logstash, ElasticSearch, OpenSearch and Nagios. Need to know: How to deploy and configure agents on servers. How to parse and forward systems logs. Understand Windows Systems events to setup alerts. Experience managing infrastructure scanners (Nessus, Rapid7) to scan physical hardware, VMs, and operating systems for missing patches. Continuously audit server configurations against security baselines benchmarks (CIS or DISA STIGS). Must understand network protocols and services, how data moves down to troubleshoot Core Infrastructure Services (DNS, NTP, DHCP, Route53), Transport and Diagnostic layer (TCP/IP, UDP, ICMP), hybrid connectivity, container routing and secure communication channels. Understand NAS, SAN and FC technologies and related enterprise storage integrations to manage storage platforms (like NetApp ONTAP, Proxmox PBS or DELL PowerStore). Experience managing Enterprise Certificate Authorities (PKI Certificates) like AD CS or cloud-native options. Excellent troubleshooting skills. Clearance Level TS/SCI w/Poly SP Lockheed Martin is an equal opportunity employer. Qualified candidates will be considered without regard to legally protected characteristics. #J-18808-Ljbffr