Windows Systems Administrator and Vulnerability Management Coordinator

Job Family : IT Cyber Security Travel Required : None Clearance Required : Ability to Obtain Public Trust What You Will Do: • 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. • Monitor 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. What You Will Need: • Minimum of SIX (6)+ years of overall work experience. • 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. • U.S. Citizenship is required in accordance with this contract. No visa or sponsorship eligibility offered • Must be able to OBTAIN and MAINTAIN a Federal "PUBLIC TRUST".. Candidates with an ACTIVE PUBLIC TRUST or SUITABILITY are preferred. What Would Be Nice To Have: • 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. 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. Benefits include: 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.) Position may be eligible for a discretionary variable incentive bonus About Guidehouse Guidehouse is an Equal Opportuni