Systems Administrator Sr Principal (TS/SCI with Poly Required)

Responsibilities

• Maintain Windows operating systems, application support, integration, design, and assistance as needed.
• Schedule and install Windows security patching, file and server backups, maintain group policies, troubleshoot server issues, and manage server installs (rack, configure, security harden, maintain).
• Schedule, plan and perform system upgrades.
• Maintain, plan and monitor the back-end infrastructure.
• Support cyber security engineer performing security analysis of audit logs and other artifacts of a networked computer system.

Requirements

• Demonstrated experience with Microsoft Windows 11 & Windows Server 2022, Active Directory, Group Policy and Certificate Authority administration.
• Demonstrated experience with Hypervisor technologies (Hyper-V virtual machines, virtual networking and failover clustering, KVM, VMware, ESXi and vCenter virtual machines, virtual networking and failover capabilities, etc.).
• Remote server access and management (RDP and KVM).
• Demonstrated experience installing and configuring systems which support infrastructure and/or R&D activities.
• Demonstrated experience with installing and updating patches on the operational and development systems, and documenting compliance.
• Demonstrated experience collaborating with other systems administrators, security analysts, and network engineers to solve complex problems.
• Experience in leveraging scripting and system automation tools (PowerShell, BASH, etc.).
• Experience in performing and maintaining system backups.
• Experience performing with minimal guidance under pressure and tight deadlines.
• Excellent communication skills (written, verbal and face-to-face).

Qualifications

• Securing and maintaining standalone environments.

Skills

• Experience with PKI and Windows Certificate Authority administration.
• Experience with Linux distributions (Rocky, Ubuntu, etc.) and CLI capabilities.
• Experience in applying cyber security practices in real-world environments.
• Experience working with log analytic tools such as Splunk, Rapid 7 (regular scanning and reporting requirements).
• Powershell use and scripting capabilities.
• Nakivo active backup utility.
• WhatsUp Gold network change management.
• InterMapper network monitoring.
• SmarterMail internal SMTP mail.
• IT and security certifications.
• Familiar with Atlassian suite of tools.
• Knowledge of cloud technologies, provisioning and security.

Benefits

• Equal Opportunity Employer / Individuals with Disabilities / Protected Veterans.