Linux Systems Administrator

Cyber Security ProfessionalLockheed Martin, Cyber & Intelligence invites you to step up to one of today's most daunting challenges: the evolving threat of cyber warfare. As a cyber security professional at Lockheed Martin, you'll protect the networks that our citizens and the world depend upon each minute. Here, you'll work with cybersecurity experts on the forefront of threat protection and proactive prevention. In this fast-paced, real-world environment, you'll draw on all your education and experience as well as the resources of Lockheed Martin to keep the threats at bay.The GG System Administrator is a senior level role that blends enterprise system administration (Linux & Windows) with full cycle network engineering, including design, deployment, and support of Arista as well as other vendor platforms. The incumbent will drive automation, security, and DevOps best practices while delivering resilient, high performance infrastructure for mission critical workload.System Administration:Install, configure, and maintain RHEL/CentOS/Ubuntu/Debian servers and Windows Server 2016/2019/2022 instances.Manage users, groups, Active Directory, and local security principals.Provision and manage storage (partitioning, LVM, RAID, SMB/NFS shares).Perform system hardening, patching, and vulnerability remediation in accordance with DoD STIG/CIS baselines.Monitor performance, tune kernel/OS parameters, and troubleshoot services.Automation and Scripting:Develop and maintain Ansible playbooks and roles to automate both Linux and Windows workloads (use of WinRM modules).Write Bash, PowerShell, and Python scripts for routine tasks, incident response, and reporting.Operate Ansible Tower/AWX for job scheduling, credential management, and audit trails.Integrate Git version control workflows for infrastructure as code (IaC).Network Engineering:Design, implement, and troubleshoot enterprise L2/L3 networks (VLANs, routing protocols, QoS, DHCP, DNS).Arista Specific: Configure Arista EOS switches, leverage CloudVision for centralized provisioning, and automate via eAPI/Ansible modules.Conduct capacity planning, high availability design, and performance tuning (BGP, OSPF, EVPN, VXLAN).Implement security controls (ACLs, RADIUS/TACACS+, 802.1X, MACsec) and ensure compliance with DoD requirements.Security & Compliance:Enforce DoD 8570 IAT 2 standards; apply DISA STIGs and CIS Benchmarks across hosts and network devices.Manage secrets, certificates, and role based access controls (RBAC) for both servers and switches.Perform regular audits, vulnerability scans, and remediation tracking.Collaboration & Communication:Translate technical concepts into clear business value for stakeholders.Provide Tier 3 support and knowledge transfer to Tier 1/2 service teams.Document designs, runbooks, and SOPs in Confluence/SharePoint and maintain configuration libraries in Git.Basic Qualifications:Bachelors degree from an accredited college in a related discipline, or equivalent experience/combined education, with ten (10) years or more of professional experience. An additional five (5) years of experience can be substituted for a degree.Considered an expert, authority in discipline.DOD 8570 certification to meet IAT Level 2 requirements.Possess all capabilities as defined by the GG Statement of work (SOW) Appendix B for the USG standard SA labor category level X.***You must possess the requisite security clearance and polygraphs to apply to this position***Desired Skills:Container Orchestration: Experience with container orchestration tools such as Docker Swarm, Kubernetes, or Apache Mesos.Understanding of container networking, service discovery, and load balancing.Cloud Native Technologies: Familiarity with cloud-native technologies such as cloud providers (AWS, Azure, GCP), container registries (Docker Hub, Google Container Registry), and cloud-based logging and monitoring tools (e.g., ELK Stack, Prometheus).Monitoring and Logging: Experience with monitoring tools such as Nagios, Prometheus, or Grafana. Knowledge of logging tools such as ELK Stack, Splunk, or Logstash.CI/CD Pipelines: Experience with CI/CD tools such as Jenkins, GitLab CI/CD, or CircleCI. Understanding of pipeline automation, testing, and deployment.Networking and Storage: Experience with networking protocols (e.g., TCP/IP, and storage solutions (e.g., SAN, NAS, Ceph).Desired Certifications:RHCE (Red Hat Certified Engineer)RHCSA (Red Hat Certified System Administrator)LFCS (Linux Foundation Certified System Administrator)CKAD (Certified Kubernetes Application Developer)CKA (Certified Kubernetes Administrator)Pay Information:Full-Time Salary Range: $118000.00 - $219100.00 At Lockheed Martin, we know mission success starts with taking care of our people. Our Total Rewards program is designed to attract top talent, support your well-being, and help you grow—both professionally and personally. The salary range for this position is as listed on the requisition. Please note that the salary information listed is a general guideline only. Lockheed Martin considers factors such as (but not limited to) scope and responsibilities of the position, candidate's work experience, education/ training, key skills as well as market(work location) and business considerations when extending an offer. Benefits offered: Medical, Dental, Vision, Flexible work arrangements and schedules (e.g., 4x10), 401(k) match, Paid time off, Holidays, Parental Leave, EAP, Flexible Spending Accounts, Education Assistance, Life Insurance, Short-Term Disability, and Long-Term Disability. * Annual short-term and/or long-term incentive compensation programs may be offered depending on the position. Payments under these annual programs are not guaranteed and can vary from year to year and are tied to a range of performance metrics. * For (Washington state applicants only) Non-represented full-time employees: accrue at least 10 hours per month of Paid Time Off (PTO) to be used for incidental absences and other reasons; receive at least 90 hours for holidays. Represented full time employees accrue 6.67 hours of Vacation per month; accrue up to 52 hours of sick leave annually; receive at least 96 hours for holidays. PTO, Vacation, sick leave, and holiday hours are prorated based on start date during the calendar year.