General Dynamics Information Technology · 1 day ago
Senior Systems Administrator
USA MD Germantown
Full-time
Onsite
Mid, Senior Level
$97K/yr - $131K/yr
5+ years expGeneral Dynamics Information Technology is a global technology and professional services company that delivers consulting, technology, and mission services to various U.S. government agencies. They are seeking a Senior Systems Administrator to support core service functions for the National Nuclear Security Administration, focusing on the integration and management of Linux and Windows systems within a secure enterprise environment.
Artificial Intelligence (AI)Cloud ComputingConsultingCyber SecurityInformation Technology
No H1B
U.S. Citizen Only
Responsibilities
Integrate Linux Systems into a primary Windows environment (workstations & servers) where authentication, authorization, and accounting actives are controlled by Active Directory with PKI certificates and Single Sign On
Configure new Linux and Windows systems for customer use and ensuring that initial configurations meet the required enterprise baselines & controls (e.g., proper agents installed, proper configs, etc.)
Integrate Linux and Windows systems with other enterprise tooling (e.g., ACAS, Splunk, SolarWinds, Backup systems, etc.)
Ensure patches are maintained across a diverse Linux environment in a heavily automated manner, where possible
Ensure that already-provisioned Servers are kept in compliance with baseline requirements & ever-changing enterprise policy (e.g., equivalent to Group Policy in the Windows realm for ongoing compliance update
Provide technical support to the administration of enterprise Storage systems including Hyperflex, NAS and SAN platforms
Provide technical and administrative support to system backups, ensuring all backups are completing as scheduled and the system ins operating in an optimized manner
Develop an operating system lifecycle plan with integration of NNSA STIGs and other recommended security standards
Monitor all solutions integrated via a centralized alerting system
Certify log management and forwarding to a single repository
Serves as a technical expert for the development, implementation, management, and support of systems and networks. Plans and execute complex assignments, developing new methods and approaches in a wide variety of IT specialties
Maintains group policy, AD directory structure, and deployment of policies
Provides domain-level configuration, administration, operation, and support for the enterprise
Supports hardware and software management; uses, monitors, and manages a software license repository, across the enterprise, for recording and tracking software licensing/support agreements
Provides configuration management support in accordance with compliance and policies and procedures
Perform account management, e.g. establishing, activating, modifying, disabling, and removing accounts
Provide configuration management, implementation, and sustainment of compliance with applicable system security controls
Provide support to IT systems including day-to-day operations, monitoring and problem resolution for all the client/server/storage/network devices, mobile devices, etc
Optimize system operations and resource utilization, and perform system capacity analysis and planning
Provide in-depth experience in trouble-shooting IT systems
Qualification
Required
5 + years of related experience
US Citizenship Required
Strong experience with Linux and Windows-based systems administration
Knowledge of cloud platforms (AWS, Azure, Google Cloud)
Experience with virtualization technologies (VMware, Hyper-V)
Familiarity with containerization technologies like Docker and Kubernetes is a plus
Experience with system monitoring tools (e.g., Nagios, Zabbix, SolarWinds)
Experience with Backup strategies and industry tools such as Commvault
Knowledge of scripting languages (e.g., PowerShell) for automation tasks
Strong troubleshooting and problem-solving abilities
Solid understanding of networking protocols and concepts (DNS, DHCP, TCP/IP, VPN, etc.)
Expert knowledge and experience in current Windows client server to include OS configuration, file sharing, DNS, DHCP, and Active Directory
Experience granting permissions, group policy, responding to trouble tickets
Optimize system operations and resource utilization
Implement ongoing system security compliance measures including patches and updates
Knowledge and demonstrated experience and its implementation using VMware vSphere (vCenter/ESXi) and Horizon View (VDI Desktops)
Practical experience in implementing and maintaining virtualization (VDI Desktops)
Written and Oral Communication; Organization, Problem Solving, Communication, and Teamwork
Preferred
Bachelor's degree in computer science, Information Technology, or a related field (or equivalent work experience) or Technical Training, Certifications, and 8+ years of experience
Microsoft Windows Hybrid Administrator
ITIL 4 Foundation Certification
Microsoft Certified: Azure Administrator Associate
Red Hat Certified Engineer (RHCE)
VMware Certified Professional (VCP)
Benefits
Comprehensive benefits and wellness packages
401K with company match
Variety of medical plan options, some with Health Savings Accounts
Dental plan options
A vision plan
Paid time off plans, including vacation, sick and personal time, holidays, paid parental, military, bereavement and jury duty leave
Short and long-term disability benefits
Life, accidental death and dismemberment, personal accident, critical illness and business travel and accident insurance
Company
General Dynamics Information Technology
General Dynamics Information Technology is an IT consulting company that specializes in cyber security, AI, and quantum computing. It is a sub-organization of General Dynamics.
10001+ employees
Funding
Current Stage
Late StageLeadership Team
Paul Nedzbala
Senior Vice President
Ben Buckley
Vice President and General Manager
Recent News
2026-01-03
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2025-11-20
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