Microsoft Senior Security Architect with Microsoft Entra ID ,Microsoft Defender XDR ,Microsoft 365 tenant-to-tenant migrations, SC-100 and SC-300

Microsoft Senior Security Architect with Microsoft Entra ID ,Microsoft Defender XDR ,Microsoft 365 tenant-to-tenant migrations, SC-100 and SC-300 (must ) - Dallas TX - Hybrid weekly 3 days

Requisition Name: Microsoft Senior Security Architect

Start Date: 1/4/2027

Duration: 25 Weeks

Services Location: TX/Dallas

Description Of Services:
Microsoft Senior Security Architect – M365, Entra ID, Defender & Email Security (10–12 years)

Hands-on Microsoft security architect who designs, configures and validates Microsoft 365, Entra ID, Defender and email security for new tenants during a tenant separation.

• Required skills & experience

• 10–12 years total experience in IT / information security, including last 5+ years in Microsoft security

• Expert: Microsoft Entra ID (Conditional Access, PIM, ID Protection, authentication methods, B2B / cross-tenant access / MTO, app registrations)

• Expert: Microsoft Defender XDR suite – Defender for Endpoint, Defender for Office 365, Defender Vulnerability Management, Defender for Cloud Apps, Defender for Mobile

• Microsoft 365 / Exchange Online administration: mail flow, connectors, accepted domains, SPF / DKIM / DMARC; third-party email security (Abnormal, Proofpoint or Mimecast) preferred

• Intune security: baselines, compliance policies, Windows LAPS, EPM, BitLocker

• Delivered 2+ Microsoft 365 tenant-to-tenant migrations, divestitures or M&A separations (e.g., Quest On Demand Migration, BitTitan, ShareGate)

• PowerShell, Microsoft Graph API, Microsoft365DSC / Maester; working knowledge of Sentinel and KQL

• Frameworks: NIST CSF 2.0, CIS Microsoft 365 Benchmark, Microsoft Secure Score; regulated / critical-infrastructure experience preferred

• Client-facing; has led onshore/offshore engineering teams

• Strong written and verbal English; experience working in onshore/offshore delivery models

Certifications

• Required: SC-100 and SC-300 (or MS-102). Preferred: SC-200, SC-401, MD-102 or CISSP

Deliverables:
-Process Flows -Mentor and Knowledge transfer to client project team members -Participate as primary, co and/or contributing author on any and all project deliverables associated with their assigned areas of responsibility -Participate in data conversion and data maintenance -Provide best practice and industry specific solutions -Advise on and provide alternative (out of the box) solutions -Provide thought leadership as well as hands on technical configuration/development as needed. -Participate as a team member of the functional team -Perform other duties as assigned.

Need Word Format Resume, Below details, Work Authorization Copy (If H1B / EAD).

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