**Job Description:** This position requires office presence of a minimum of 5 days per week and is only located at customer's site. **Work to be performed in Dahlgren, VA.** AT&T Global Public Sector is a trusted provider of secure, IP enabled, cloud-based, network solutions and professional services to the Federal Government. We are dedicated to recruiting, developing and empowering a diverse, high-performing workforce that is passionate about what they do, committed to our shared values and dedicated to our customers’ mission. The AT&T will provide comprehensive Information Technology Infrastructure Support Services to the US Navy, delivering asset management, network operations, system design and configuration, and facility support to ensure effective day-to-day operations at several Naval Bases. AT&T has an opening for a Lead Systems Administrator (Windows) to provide enterprise-level support for the US Navy. The position will lead efforts in system performance monitoring, backup and recovery process, and cross-functional collaboration with engineers and cybersecurity teams to maintain compliance and mission readiness. **Job Duties/Responsibilities:** + Oversee the design, implementation, and maintenance of Windows-based server and desktop environments across an organization. + Manage Active Directory, Group Policy, DNS, DHCP, and other core Windows services to ensure secure and efficient operations. + Leads efforts to deploy and configure servers, monitor system performance, and apply patches and updates to maintain system integrity and compliance. + Develop and maintain automation scripts for routine tasks, manage backup and recovery processes, and ensure high availability of critical systems. + Collaborate with network engineers, cybersecurity teams, and application support staff to ensure seamless integration and secure operations across the IT infrastructure. + Planning and execute system upgrades, migrations, and new deployments, often leading cross-functional teams through these initiatives. + Document system configurations, procedures, and incident resolutions, as well as mentoring junior administrators and providing guidance on best practices. + Maintain a stable, secure, and scalable IT infrastructure. **Required Clearance:** TS/SCI (#tssci) **Required Qualifications:** + 6 years of professional work and leadership experience in relation to Windows system administration of networks and software systems. + Experience in system backup/recovery, basic software management, security and library management, installation and configuration of hardware, operating systems and COTS software, operating computer systems in different operating environments, sizing, performance, tuning, hardware/software /network trouble shooting and resource allocation. + Experience in maintaining proficiency on major network security tools such as, firewalls. + Experience developing system specifications and performing market research procurement tasks. + Experience with different network protocols including TCP/IP. + Experience of computing and networking vulnerabilities, and attach and latest detect methods. + Required Certification: IAT Level II Our Lead Systems Administrator (Windows) earn between $100,000 - $170,000. Not to mention all the other amazing rewards that working at AT&T offers. Individual starting salary within this range may depend on geography, experience, expertise, and education/training. **Joining our team comes with amazing perks and benefits:** + Medical/Dental/Vision coverage + 401(k) plan + Tuition reimbursement program + Paid Time Off and Holidays (based on date of hire, at least 23 days of vacation each year and 9 company-designated holidays) + Paid Parental Leave + Paid Caregiver Leave + Additional sick leave beyond what state and local law require may be available but is unprotected + Adoption Reimbursement + Disability Benefits (short term and long term) + Life and Accidental Death Insurance + Supplemental benefit programs: critical illness/accident hospital indemnity/group legal + Employee Assistance Programs (EAP) + Extensive employee wellness programs + Employee discounts up to 50% off on eligible AT&T mobility plans and accessories, AT&T internet (and fiber where available) and AT&T phone **Weekly Hours:** 40 **Time Type:** Regular **Location:** Newburg, Maryland It is the policy of AT&T to provide equal employment opportunity (EEO) to all persons regardless of age, color, national origin, citizenship status, physical or mental disability, race, religion, creed, gender, sex, sexual orientation, gender identity and/or expression, genetic information, marital status, status with regard to public assistance, veteran status, or any other characteristic protected by federal, state or local law. In addition, AT&T will provide reasonable accommodations for qualified individuals with disabilities. AT&T is a fair chance employer and does not initiate a background check until an offer is made. AT&T will consider for employment qualified applicants in a manner consistent with the requirements of federal, state and local laws We expect employees to be honest, trustworthy, and operate with integrity. Discrimination and all unlawful harassment (including sexual harassment) in employment is not tolerated. We encourage success based on our individual merits and abilities without regard to race, color, religion, national origin, gender, sexual orientation, gender identity, age, disability, marital status, citizenship status, military status, protected veteran status or employment status