Microsoft Technical Solutions Architect (IT SE III) (Government)

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. Our National Security Team supports the intelligence community, providing, operating, and assuring critical voice, video and collaboration services for the full spectrum of operations. We are seeking a Microsoft Solutions Architect to lead the design, modernization, security, and automation of enterprise on-prem Microsoft infrastructure. This role serves as the technical authority for Windows Server and Active Directory architecture, driving strategic technology decisions, engineering standards, and long-term infrastructure roadmaps. The ideal candidate combines deep technical expertise with strong leadership skills and thrives in complex, highly secure enterprise environments. This is a full-time onsite role based in the location(s) posted and is performed from the designated work location five days per week. No relocation is offered. Work to be performed at a government customer site in Chantilly, VA. Description of Job Duties/Responsibilities: Architecture & Strategy:

• Define and maintain enterprise architecture standards for Microsoft technologies.
• Develop technology roadmaps, modernization strategies, and future-state designs.
• Lead architecture reviews, technical evaluations, and solution design efforts.
• Serve as the primary Microsoft infrastructure SME for technical planning and stakeholder engagements.

Infrastructure Engineering:

• Design, implement, and support highly available Microsoft on-prem solutions, including:
• Active Directory Domain Services (AD DS)
• Windows Server
• DNS, DHCP, Group Policy, and Kerberos
• PKI/AD CS
• File, storage, and remote desktop services
• Design delegated administration, RBAC, and identity management solutions.
• Create detailed architectural documentation, implementation plans, and operational standards.

Automation & Security:

• Develop automation solutions using PowerShell and modern infrastructure automation tools.
• Implement security best practices, privileged access controls, and DISA STIG compliance.
• Lead vulnerability remediation, system hardening, and infrastructure security initiatives.

Technical Leadership:

• Troubleshoot and resolve complex infrastructure and performance issues.
• Perform root cause analysis and drive continuous improvement.
• Lead technical projects through the full system lifecycle and mentor engineering teams.
• Collaborate with security, network, application, and operations teams to deliver enterprise solutions.

Required Clearance: TS/SCI with polygraph. (#ts/sci) (#polygraph) Required Qualifications: Experience:

• Candidate must have 16 years of experience that can be a combination of work history and education. This equates to a Doctorate and 8 years, master’s and 10 years, bachelor’s and 12 years, associates and 14 years or HS diploma and 16 years.
• Bachelor's degree in Computer Science, Information Technology, Engineering, or related field (or equivalent experience).
• 7+ years designing and supporting enterprise Windows Server environments.

Technical Expertise:

• Deep expertise in:
• Windows Server
• Active Directory
• Group Policy
• DNS and DHCP
• PKI/AD CS
• Enterprise identity and access management
• High-availability and clustering technologies
• Experience with Active Directory architecture, delegated administration, and RBAC design.
• Advanced PowerShell scripting and infrastructure automation experience.
• Experience with enterprise patch management, configuration management, and deployment automation.
• Strong understanding of Microsoft security best practices, DISA STIGs, least-privilege access, and vulnerability remediation.
• Experience with VMware, Hyper-V, or comparable virtualization platforms.
• Strong knowledge of networking fundamentals, including TCP/IP, DNS, VLANs, firewalls, and network segmentation.
• Proven ability to troubleshoot complex Windows, networking, virtualization, and storage environments.
• Additional required qualifications include: Compliance with Department of Defense (DoD) 8140 Information Assurance Technical (IAT) Level 2.

Professional Skills:

• Strong analytical and problem-solving abilities.
• Excellent communication and technical documentation skills.
• Ability to lead complex technical initiatives and work independently in a fast-paced environment.

Desired Qualifications:

• Experience with multi-site and geographically distributed Active Directory environments.
• Experience with domain consolidations, migrations, and infrastructure modernization initiatives.
• Experience with Ansible, Terraform, or similar automation platforms.
• Experience with VDI, FSLogix, DEM, and enterprise desktop engineering.
• Experience integrating Windows and Red Hat Enterprise Linux environments.
• Experience with enterprise backup, disaster recovery, and business continuity solutions.
• Knowledge of Zero Trust architecture and cybersecurity frameworks.
• Experience leading architecture reviews, proof-of-concept efforts, and large-scale infrastructure transformation programs.
• Experience working in highly regulated enterprise or government environments.

Ready to join our team? Apply today!Our Microsoft Technical Solutions Architect (IT SE III) (Government) earns $118,700 - $220,000 yearly. 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) Pro-rated when working less than 40 hrs/wk.
• 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 wireline phone

Weekly Hours: 40 Time Type: Regular Location: Chantilly, Virginia AT&T and its subsidiaries are committed to equal employment opportunity. All hiring, promotion, and other employment decisions remain merit-based and free from discrimination on the basis of race, color, religion, religious creed, national origin, ancestry, age, sex, sexual orientation, gender, gender identity, gender expression, physical disability, mental disability, pregnancy, medical condition, genetic information, marital status, citizenship status, military status, veteran status, or any other characteristic protected by federal, state, or local laws. In addition, AT&T will provide reasonable accommodations to qualified individuals with disabilities. AT&T is a fair chance employer and does not initiate a background check until an offer is made. [Click here](null) to learn more or request an application [accommodation here](null).