Windows Systems Administrator and Vulnerability Management Coordinator

About the role

Guidehouse is seeking a skilled IT Cyber Security professional to join our team. This role requires a minimum of six (6) years of overall work experience, with a focus on supporting Microsoft Windows Server in enterprise data center environments.

Responsibilities

• Install, configure, patch, monitor, back up, and maintain Windows Server operating systems across physical, virtual, and cloud-hosted environments.
• Manage file systems and storage using volume management techniques; monitor and optimize file system performance.
• Maintain system performance, capacity, and availability while performing operating system tuning and optimization.
• Support on-premises VMware vSphere workloads and assist with workload migration and transition into Microsoft Azure.
• Manage Windows Server environments hosted in Azure and other cloud platforms.
• Utilize cloud-native tools such as Azure Monitor, Azure Update Management, and Defender for Cloud to maintain system health, performance, and compliance.
• Configure and maintain Active Directory, DNS, DHCP, Group Policy, and related Windows services across hybrid environments.
• Harden systems in accordance with cybersecurity policies, standards, regulations, and accreditation requirements.
• Identify, remediate, and resolve operating system security vulnerabilities.
• Manage domain user accounts, permissions, and role assignments.
• Troubleshoot and resolve Tier 3 incidents and service requests while coordinating with customers and vendors as needed.
• Automate administrative and operational tasks using PowerShell, Ansible, and related automation tools.
• Maintain enterprise source code and configuration repositories using GitLab.
• Provide 24x7 operational support and participate in on-call activities as required.
• Document system changes, incidents, and problem resolutions using Configuration Management and ITSM tools.
• Develop and provide knowledge transfer documentation to support operational continuity.
• Participate in Agile and DevSecOps initiatives supporting infrastructure and platform services.
• Support Windows Server 2016, 2019, and 2022 environments across VMware, Azure, AWS, and GCP platforms.
• Administer and support technologies including Azure VMware Solution (AVS), VMware vSphere, PowerShell, Ansible, GitLab, Carbon Black, CyberArk, Defender, Remedy, and ServiceNow.

Requirements

• Engineering-level experience supporting Microsoft Windows Server in enterprise data center environments.
• Experience managing Windows workloads in Microsoft Azure, including hybrid cloud environments and workload migrations.
• Experience supporting VMware-based infrastructure and virtualization platforms.
• Demonstrated ability to lead troubleshooting, root cause analysis, and resolution efforts for complex technical issues.
• Experience collaborating with technical and business stakeholders to deliver operational solutions.
• Experience with Ansible.
• Strong experience with PowerShell scripting and infrastructure automation.
• Experience using automation tools, with Ansible preferred.
• Experience supporting and maintaining Active Directory, DNS, DHCP, Group Policy, and other core Windows services.
• Working knowledge of cloud monitoring, security, and compliance tools.
• Strong written and verbal communication skills in English.
• Exceptional customer service and client support capabilities.
• Strong organizational, multitasking, time-management, and prioritization skills.
• Ability to communicate technical concepts effectively to both technical and non-technical audiences.
• Experience operating within ITIL-based service management environments.
• Ability to work both independently and collaboratively in a fast-paced environment.
• Willingness to participate in 24x7 support activities and occasional on-site response requirements.

Qualifications

• U.S. Citizenship is required in accordance with this contract.
• No visa or sponsorship eligibility offered.
• Candidates with an ACTIVE PUBLIC TRUST or SUITABILITY are preferred.

Skills

• Experience with Azure VMware Solution (AVS) or similar hybrid cloud hosting models.
• Experience supporting cloud platforms beyond Azure, including AWS and Google Cloud Platform (GCP).
• Hands-on experience with cybersecurity tools such as Carbon Black, CyberArk, Microsoft Defender, and related security technologies.
• Experience with GitLab-based source code and configuration management practices.
• Familiarity with Agile delivery methodologies and DevSecOps practices.
• Experience with ITSM platforms including ServiceNow and Remedy.
• Knowledge of security accreditation, compliance, and system hardening processes within federal environments.
• Experience participating in enterprise cloud modernization or migration initiatives.
• Microsoft, Azure, VMware, ITIL, Security, or automation-related certifications.

Benefits

• Medical, Rx, Dental & Vision Insurance
• Personal and Family Sick Time & Company Paid Holidays
• Parental Leave
• 401(k) Retirement Plan
• Group Term Life and Travel Assistance
• Voluntary Life and AD&D Insurance
• Health Savings Account, Health Care & Dependent Care Flexible Spending Accounts
• Transit and Parking Commuter Benefits
• Short-Term & Long-Term Disability
• Tuition Reimbursement, Personal Development, Certifications & Learning Opportunities
• Employee Referral Program
• Corporate Sponsored Events & Community Outreach
• Care.com annual membership
• Employee Assistance Program
• Supplemental Benefits via Corestream (Critical Care, Hospital Indemnity, Accident Insurance, Legal Assistance and ID theft protection, etc.)

What We Offer

Guidehouse offers a comprehensive, total rewards package that includes competitive compensation and a flexible benefits package that reflects our commitment to creating a diverse and supportive workplace.

Pay

The salary range for this position is $80,000 - $120,000 annually, depending on experience and qualifications.

Schedule

This role requires 24x7 operational support and occasional on-site response requirements.

Benefits

• Medical, Rx, Dental & Vision Insurance
• Personal and Family Sick Time & Company Paid Holidays
• Parental Leave
• 401(k) Retirement Plan
• Group Term Life and Travel Assistance
• Voluntary Life and AD&D Insurance
• Health Savings Account, Health Care & Dependent Care Flexible Spending Accounts
• Transit and Parking Commuter Benefits
• Short-Term & Long-Term Disability
• Tuition Reimbursement, Personal Development, Certifications & Learning Opportunities
• Employee Referral Program
• Corporate Sponsored Events & Community Outreach
• Care.com annual membership
• Employee Assistance Program
• Supplemental Benefits via Corestream (Critical Care, Hospital Indemnity, Accident Insurance, Legal Assistance and ID theft protection, etc.)