Senior Windows System Administrator

• Monitor test infrastructure systems, applications, and processes to identify, track, and resolve issues
• Support server, router, and firewall configuration
• Perform security management and application performance optimization
• Maintain VMware server hosts, Windows and Linux guest servers, and VDI environments
• Maintain multiple virtual server clusters
• Address system scan findings, vulnerability management patching, and Active Directory configuration issues
• Use enterprise monitoring tools to detect, assess, and respond to alerts
• Provide technical support to partner work groups and collaborate across departments
• Manage IAVAs and system security scanning in accordance with applicable System Security Plans
• Initiate IAVA responses and security scans, complete remediation actions, deploy patches and security updates, and execute monthly scans
• Identify and resolve hardware and software problems
• Notify customers about infrastructure delays and communicate outages and status updates
• Author and maintain clear, accurate, concise documentation
• Respond to calls and emails professionally and promptly
• Plan and implement IT enhancements and support project-related work
• Respond to system administration, operations, and maintenance issues on-call when required

• Must be a U.S. Citizen
• Must possess a TS/SCI Security Clearance with an appropriate Polygraph
• At least 7 years of Windows administration experience
• At least 7 years of information security management experience, including security governance, risk management, compliance, and operational security functions
• At least 5 years of experience implementing and managing Windows Active Directory and DNS environments
• At least 5 years of experience creating and managing Group Policy Objects (GPOs)
• At least 5 years of experience with Microsoft SCCM
• At least 5 years of Microsoft Exchange administration and Exchange Management Shell experience
• Experience with Windows Command Line, Power Shell, and Power Shell scripting
• Strong understanding of advanced security protocols, standards, and information security principles
• Experience with software and security architectures
• Hands-on experience with IAVA management
• Hands-on experience supporting users, optimizing system operations, and monitoring enterprise IT systems
• Commitment to maintenance windows and change control procedures
• Familiarity with Windows and Linux operating systems, VMware, and networking technologies including switches, routers, LANs, and cabling
• Strong analytical skills and attention to detail
• Ability to work independently and as part of a team
• Preferred:
  Bachelor's degree in Computer Science, Information Technology, or a related technical field and 12 years of prior relevant experience
• Experience documenting and supporting security accreditation and certification activities
• Experience with network security technologies, including multi-domain solutions, PKI, SSPs, and vulnerability assessments
• Experience with data center design and configuration, including rack-and-stack, power planning, and equipment placement
• Experience with VMware
• Experience using automation tools such as Ansible or Salt Stack
• Experience supporting software configuration management and development environments as a System Administrator

Demonstrates extensive experience in Windows Administration, Information Security Management, and Active Directory management, with a strong focus on security protocols and compliance. Proficient in using enterprise monitoring tools and managing system security scanning and vulnerability assessments.

• Windows Administration
• Information Security Management
• Active Directory Management
• Microsoft SCCM
• IAVA Management

• Windows Administration
• Information Security Management
• Active Directory Management
• Group Policy Objects (GPOs)
• Microsoft SCCM
• Microsoft Exchange Administration
• Power Shell Scripting
• Security Protocols
• Vulnerability Assessments
• Data Center Design

• Analytical Skills
• Attention to Detail
• Team Collaboration
• Independent Work
• Professional Communication

• TS/SCI Security Clearance
• Polygraph

• System Security Plans
• Security Governance
• Risk Management
• Compliance
• Operational Security

• VMware
• Windows Command Line
• Power Shell
• Ansible
• Salt Stack