System Architect III, Microsoft 365 & Workforce Messaging

What you'll do

• Define and maintain the enterprise architecture roadmap for Microsoft 365 messaging and collaboration platforms.
• Provide technical leadership and strategic direction for Exchange Server, Outlook, Entra ID, and other M365 services.
• Lead architecture reviews, technology evaluations, and solution design sessions to ensure secure and scalable systems.
• Develop and enforce architecture standards, governance frameworks, and integration strategies across messaging platforms.
• Lead PCI-DSS compliance assessments, audit reviews, and remediation efforts with regulatory stakeholders.
• Drive cloud modernization, platform transformation, tenant integration, and enterprise messaging migration initiatives.
• Mentor engineers and serve as an escalation point for complex architectural and operational challenges.

What we're looking for

• Bachelor's degree or equivalent experience.
• Ten or more years of experience across multiple technology disciplines.
• Three or more years of project or team leadership skills experience.
• Deep expertise in Microsoft Exchange Server, Exchange Online, Hybrid Messaging Architecture, and enterprise email platforms.
• Strong experience with Microsoft 365, Outlook, Microsoft Entra ID, and collaboration technologies.
• Extensive knowledge of Microsoft Purview including DLP, Message Encryption, Information Protection, and Sensitivity Labels.
• Proven experience architecting PCI-compliant messaging solutions in large-scale enterprise environments.
• Hands-on knowledge of PowerShell, Graph API, Microsoft Defender, and messaging security platforms like Proofpoint or IronPort.