Senior System Administrator

Analytica is seeking a seasoned and adaptable Senior System Administrator to join our infrastructure team in supporting an innovative federal mission. In this role, you will provide high-level technical leadership, engineering expertise, and strategic vision to optimize, manage, and secure our enterprise hardware, software, and network ecosystems.Analytica has been recognized by Inc. Magazine as a fastest-growing private US small business.  We work with U.S. government customers in health, civilian, and national security missions.  Analytica offers competitive compensation with opportunities for bonuses, employer paid health care, training and development funds, and 401k match.  What You'll Do (Key Responsibilities)Administer, maintain, and troubleshoot enterprise Windows Server and Linux/Unix systems. Manage core infrastructure services including Active Directory, Group Policy, DHCP, DNS-related support, and endpoint/server configuration tools. Support virtualization environments, including VMware vSphere or similar platforms. Perform system patching, hardening, vulnerability remediation, and configuration management for EUDs and Servers.Develop and maintain scripts using PowerShell, Python, or similar languages to automate administrative tasks. Support server hardware lifecycle activities, including rack installation, blade/server replacement, component upgrades, disk replacement, RAM upgrades, PCIe card installation, and related maintenance. Troubleshoot infrastructure issues across servers, storage, networking, applications, and authentication services. Provide escalated end-user support for complex issues, serving as the next level of support for Junior System Administrators / support staff.Use ServiceNow or similar ITSM/ticketing platforms to track incidents, requests, changes, and problem resolution. Coordinate with network, cybersecurity, engineering, and service desk teams to support infrastructure changes, incident response, and steady-state operations. Maintain accurate system documentation, standard operating procedures, diagrams, and operational runbooks.All other duties as assigned.Required Skills & ExperienceEducation & Career HistoryBachelor’s degree in Computer Science, Information Technology, or a related field plus at least 3 years of dedicated System Administration experience.OR 7+ years of progressive, hands-on experience in enterprise systems administration.Security ClearanceActive secret security clearanceWindows Server & Directory ServicesProficiency in administering Windows Server, Active Directory, Group Policy (GPO), DHCP scopes, and MECM/SCCM collections and deployments.VirtualizationExperience working with virtualization platforms, particularly VMware vSphereScripting & AutomationProficiency in PowerShell or Python for task automation and systems managementLinux / UnixExperience configuring and managing RHEL, Ubuntu, or other Linux/Unix systemsNetworking KnowledgeBasic knowledge of IP networking concepts including switching, routing, subnetting, and Ports, Protocols & Service Management (PPSM)Security & ComplianceExperience supporting Risk Management Framework (RMF) activities including IAVM management, patch management, and STIG hardening across various systemsHardwareHands-on experience with server hardware including rack mounting, blade server installation, and component-level maintenance (PCIe cards, RAM, drives, etc.)Service ManagementExperience using ServiceNow or a comparable ITSM ticketing platformPreferred QualificationsThe following are not required but will strengthen your application:Familiarity with container technologies such as Docker, or container orchestration platforms such as Kubernetes, VMware Tanzu, or RancherExperience writing Splunk queries (SPL)Experience administering IIS web servers and/or SQL ServerExperience with enterprise storage platforms such as NetApp ONTAP or Dell EMC OneFSExperience with identity and authentication technologies including SSO, SAML, ADFS, or OktaSummaryLocation: Silver Spring, MD, United StatesType: Full TimeExperience: Experienced