ManTech seeks a motivated, career and customer-oriented **Senior Windows Engineer** to join our team in **Norfolk, VA.** This position will be full time on-site. **Responsibilities include but are not limited to:** + In-depth understanding of Active Directory (AD) Attributes, LDAP Queries, and PowerShell scripting for modifying AD configurations + Building and managing Windows Server environments to include configuring organizational units (OUs) and Group Policy Objects (GPOs) to align with organizational requirements and security standards + Configuring AD Server Roles such as Certificate Authorities (CAs), IIS, File/Print, and DNS + Lead the analysis, design, and implementation of Active Directory and Identity Management solutions + Evaluate the current AD environment, identify operational and technical challenges, and develop actionable solutions to address issues + Provide data for regulatory compliance and support audits + Ensure the security and integrity of the corporate Active Directory forest + Interact and collaborate with customers, service managers, and operational support teams to design, test, and deploy security and/or automation solutions to meet business needs + Provide technical guidance and mentorship to junior engineers and other team members. Generate tailored guidance for training + Lead the evaluation of project requirements, analyzing the impact on the infrastructure, including equipment redundancy and capacity requirements + Develop and maintain repeatable process documentation and Standard Operating Procedures (SOPs) + Ensure all systems are compliant with the necessary STIGs (Security Technical Implementation Guides), implementing them across environments to meet security requirements + Perform system administration of Endpoint Security System (ESS) / Host-Based Security System (HBSS) servers + Participate in on-call support rotations, handling critical system issues and resolving problems as they arise **Minimum Qualifications:** + Bachelor's degree in Computer Science, Information Technology, or a related field with 7+ years of experience in Windows system administration and management in an enterprise environment + CompTIA Security+ Certification + Experience with a combination of Windows Server (2016, 2019, 2022), Active Directory, Domain Name System (DNS), IIS, and Group Policy + Experience with a combination of PowerShell scripting, Active Directory, SCCM, HBSS, Windows Update Services (WSUS), and Exchange Servers + Ability to implement and enforce security best practices and regulatory compliance requirements + Experience with virtualization platforms (e.g., VMware, Hyper-V) + Ability to travel CONUS/OCONUS as required + Experience with Microsoft Office products (Word, Excel, PowerPoint) for documentation and presentations **Clearance Requirements:** + US citizenship and Secret clearance with the ability to obtain TS/SCI **Physical Requirements:** + Must be able to remain in a stationary position for up to 50% of the time. + Constantly operate a computer and other office productivity machinery, such as a calculator, copy machine, and printer. + The person in this position needs to occasionally move about inside the office to access file cabinets, office machinery, etc. ManTech International Corporation, as well as its subsidiaries proactively fulfills its role as an equal opportunity employer. We do not discriminate against any employee or applicant for employment. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability, or status as a protected veteran. If you are a qualified individual with a disability and require a reasonable accommodation to apply for a position with ManTech through its online applicant system, please email us at careers@mantech.com and provide your name and contact information.