Job Description
Step into a senior technical role where your architecture, hardening, and automation skills directly enable engineers building critical Department of War technologies. As a SysAdmin, you are the technical authority for program‑owned infrastructure—designing secure identity and network patterns, leading incident response, establishing STIG‑aligned baselines, and driving automation so our systems are reliable, auditable, and fast. You’ll collaborate with DevSecOps on cloud and CI/CD platform integration, and help prove readiness through RMF/ATO evidence, vulnerability closure, and measurable SLAs. If you thrive on solving complex problems, designing resilient systems, and leading high‑stakes technical work with visible mission impact, this is your seat at the table. Essential Job Responsibilities Maintains smooth operation of multi-user computer systems, including coordination with network administrators. Interacts with users and evaluates vendor products. Makes recommendations to purchase hardware and software, coordinates installation and provides backup recovery. Develops and monitors policies and standards for allocation related to the use of computing resources. Ancillary duties may include setting up administrator and service accounts, maintaining system documentation, tuning system performance, installing system wide software and allocating mass storage space. Position will be on-site in Roanoke, VA . Minimum Qualifications Demonstrated experience administering and securing Windows and/or Linux enterprise environments Strong knowledge of networking fundamentals, including DNS, DHCP, VLANs, routing, and firewall concepts Experience performing system hardening, patch management, and vulnerability remediation Proven ability to manage multi‑user system environments and collaborate with network, security, and engineering teams Experience developing or maintaining system documentation, configurations, and operational procedures Ability to obtain and maintain a DoD security clearance and meet program‑specific eligibility requirements Systems Administrator II 3 years relevant experience with Bachelors in related field; 1 year relevant experience with Masters in related field; or High School Diploma or equivalent and 7 years relevant experience. Systems Administrator III 6 years relevant experience with Bachelors in related field; 4 years relevant experience with Masters in related field; or High School Diploma or equivalent and 10 years relevant experience. Systems Administrator IV 10 years relevant experience with Bachelors in related field; 8 years relevant experience with Masters in related field; or High School Diploma or equivalent and 14 years relevant experience. Preferred Requirements Active TS/SCI clearance preferred Demonstrated experience hardening systems using DISA STIGs and supporting RMF/ATO efforts Expertise with infrastructure automation (Ansible, Terraform, PowerShell DSC, or similar) Experience designing and managing identity services (AD, LDAP, PKI) and Zero Trust–aligned architectures Hands‑on experience with virtualization platforms (VMware, Nutanix, or similar) Familiarity with DevSecOps toolchains and CI/CD pipelines (GitLab, Jenkins, Nexus, Artifactory) Strong background in monitoring, observability, and performance tuning Prior experience in a secure DoD, IC, or defense contractor environment Proven ability to lead incident response and root‑cause analysis for enterprise systems Physical Requirements Must be able to work on‑site in Roanoke, Virginia , supporting a secure, customer‑facing environment Able to sit or stand for extended periods while working at a computer workstation Occasional lifting (up to approximately 25 lbs) for tasks such as moving equipment or racking hardware Ability to access data center or lab environments, which may require bending, stooping, or climbing short ladders Ability to travel occasionally for meetings, training, or mission support, if required