Network/System Administrator (Net/Sys Admin) III

Job Overview Position: Network/System Administrator (Net/Sys Admin) III Type of Requisition: Regular. Job Family: IT Infrastructure and Operations. Clearance: Must currently possess Top Secret/SCI clearance and be able to obtain TS/SCI with Continuous Impact (CI) polygraph. Must have 2 years of Special Access Program (SAP) experience. Citizenship: United States citizenship required. Responsibilities Organize, install, and support the government organization’s computer systems, including LANs, WANs, network segments, intranets, and other data communication systems. Architect, design, and analyze network models while participating in decisions about future hardware or software purchases to upgrade the organization’s infrastructure. Provide technical support to computer users, troubleshooting and resolving users’ problems. Supply day‑to‑day support for Collateral, Sensitive Compartmented Information (SCI) and Special Access Program (SAP) activities. Lead the IT operations team in day‑to‑day management and operations of networks, implementing capabilities approved through Cybersecurity, ISSE, and higher headquarters to maintain JSIG/RMF Authority to Operate and Continuous Monitoring programs. Manage commercial off‑the‑shelf (COTS) and government off‑the‑shelf (GOTS) products to monitor, display, and remediate automated system security and performance functions and metrics. Assist during security assessments of servers, network devices, and security appliances, focusing on accuracy and efficiency. Create operational operations and maintenance (O&M) checklists (daily, weekly, monthly, yearly) and develop tactics, techniques, and procedures (TTPs) as well as standard operating procedures (SOPs) related to these checklists. Operate monitoring tools and capabilities with enterprise security information and event management (SIEM), tailoring complex event alarms/rules and summary reports. Execute cybersecurity operations procedures for daily network management, monitoring output of cybersecurity tools to identify reportable security incidents and residual risk. Assist in analyzing technical risk of emerging cybersecurity tools and processes on request. Serve as part of a security incident response team as needed and collaborate with ISSM/ISSO/ISSE to integrate and develop new techniques to improve security posture. Maintain confidentiality, integrity, and availability for networks and systems operating at various classification levels. Demonstrate advanced technical competency in one or more of the following supported platforms: Microsoft Windows Server, Active Directory, Red Hat Enterprise Linux, Hyper‑V/VMWare/ESx/Xen Hypervisors, enterprise networking/firewalls/intrusion detection/prevention systems, forensic analysis/vulnerability assessment, group policy management, scripting, BMC Footprints, WSUS, Lumension, Bitlocker, SQL Server 2012, TomCat, IIS, Windows Server 2012 r2/2016, Windows 10, Red Hat 6.5, Microsoft Office Toolkits, SEIMs, LogRhythm, ACAS/Nessus/SCAP, mandatory/role‑based access control concepts (e.g., SELinux, AppArmor, Sentris), video teleconferencing/VOIP, Oracle/MS SQL database security, and Apache/IIS web server security. Qualifications Five (5) or more years of related experience. Two (2) or more years of SAP experience required. Bachelor’s degree or Associate’s degree in a related area plus two years of experience, or equivalent (four years) Proficient knowledge of Microsoft Windows desktop and server operating systems, Microsoft Exchange Server, and Red Hat Enterprise Linux administration with associated hardware. Strong communication skills and ability to collaborate in a high‑performance team environment. Expertise in group policy design and configuration. Working knowledge of Cisco networking and switching, virtualization technologies, LAN and WAN technologies, data backup technologies, and COMSEC policies. Familiarity with Risk Management Framework (RMF), Common Criteria, and System Security Policy as they relate to assessments and authorization. Experience with PL2, PL3, and PL4 network environments/systems and with WSUS and/or YUM patch deployment methodologies. Knowledge of DoD policy for implementing and executing system and network administration. Certification at IAT Level III (e.g., CISSP, CASP+ CE, CCNP Security, CISA, etc.) is desirable. Benefits & Compensation Salary range: $107,744 – $140,760. Compensation is based on experience, geographic location, and contractual requirements. Benefits include medical, dental, vision plans, Health Savings Accounts, 401(k) with company match, flexible work weeks, paid vacation, sick leave, personal leave, holidays, paid parental, military, bereavement, and jury duty leave, short and long‑term disability, life, accidental death and dismemberment, and business travel insurance. Location & Travel Primary location: USA, MA – Bedford. Additional work locations include Avon, Boston, Braintree, Burlington, Cambridge, Fort Devens, Norwood, Peabody, Quincy, Taunton, Waltham, and Westwood. Scheduled weekly hours: 40. Travel required: 10–25%. Clearance & Eligibility Must possess TS/SCI clearance with Continuous Impact polygraph. Must currently have Top Secret/SCI clearance and be able to obtain TS/SCI with CI polygraph. Must have 2 years of SAP experience. US citizenship is required. #J-18808-Ljbffr General Dynamics Information Technology