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

AT&T • Chantilly, VA

1d • $118,700 - $220,000 • Onsite

About The Position

AT&T Global Public Sector is 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 Chantilly, VA, performed from the designated work location five days per week.

Requirements

• 16 years of experience that can be a combination of work history and education (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.
• 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.
• Compliance with Department of Defense (DoD) 8140 Information Assurance Technical (IAT) Level 2.
• 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.
• TS/SCI with polygraph clearance.

Nice To Haves

• 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.

Responsibilities

• 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.
• 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.
• 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.
• 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.

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 wireline phone

What This Job Offers

• Job Type: Full-time
• Career Level: Senior