Lead Architect, Microsoft 365

Responsibilities

• Own the technical strategy, architecture, and roadmap for Microsoft 365 services across the enterprise
• Manage the health, performance, and availability of core services including:
  Exchange Online (mail flow, routing, hybrid integrations), Microsoft Teams (collaboration, voice, meetings, external access), One Drive for Business (sync, sharing, storage lifecycle)
• Ensure scalable, secure, and compliant platform operations aligned with enterprise standards
• Lead design, configuration, and optimization of Microsoft 365 tenant and workloads
• Drive modernization across:
  Messaging infrastructure (Exchange Online + hybrid), Unified Communications (Teams platform), Storage and collaboration (One Drive, SharePoint integration)
• Oversee L2/L3 engineering support and escalation management for complex issues
• Establish automation and operational efficiencies across provisioning, monitoring, and lifecycle management
• Partner with security teams to implement controls across the M365 ecosystem
• Ensure data protection, compliance, and governance across Exchange, Teams, and One Drive
• Support enterprise initiatives for data lifecycle management and regulatory compliance
• Evaluate and adopt next-gen Microsoft capabilities
• Establish and maintain governance frameworks, standards, and SOPs for M365 services
• Define and enforce RACI, policies, and lifecycle controls
• Lead cross‑functional governance with:
  Cybersecurity, Compliance / Legal, Infrastructure and Application teams
• Communicate platform strategy, risks, and roadmap to technical and executive stakeholders
• Lead and mentor engineering teams and external vendors

• Doctorate (Academic) Degree and related work experience of 3 years
• Master's Level Degree and related work experience of 6 years
• Bachelor's Level Degree and related work experience of 8 years
• 8+ years experience in Microsoft 365 / Office 365 platform engineering
• deep expertise in:
  Exchange Online (mail flow, hybrid, security), Microsoft Teams (collaboration, voice, policy management), One Drive & SharePoint integration
• strong knowledge of:
  Microsoft Purview (DLP, retention, data governance), Identity & access management (Entra , Conditional Access), Proofpoint / email security ecosystems, Hybrid Exchange environments, Automation tools (Power Platform, scripting)
• prior experience in M&A integration or global IT transformations
• experience managing large‑scale enterprise environments (10K+ users)