Senior Microsoft 365 Platform Engineer

Key Responsibilities

• Lead the overall M365 platform architecture, establishing and evolving the operational governance model to ensure scalability, reliability, and alignment with enterprise objectives.
• Define and enforce standards for Exchange Online, SharePoint Online, Microsoft Teams, and Power Platform, ensuring consistent adoption of best practices across the organization.
• Develop and maintain comprehensive standards, process documentation, and control frameworks to support audit, compliance, and operational continuity requirements.
• Proactively monitor Microsoft roadmap updates, evaluate new features, drive adoption decisions, and establish governance policies for newly released capabilities.
• Manage and optimize a single, enterprise-scale M365 tenant supporting over 20,000 global users.
• Lead and execute M365 tenant migration and integration projects, including development of detailed test plans, implementation plans, and project timelines.
• Provide expert-level escalation support for complex M365 issues, coordinating with Microsoft and third-party vendors as needed to reach timely resolution.
• Monitor system performance, service health, and end-user impacting incidents; communicate status and remediation plans to stakeholders at appropriate levels.
• Build and maintain operational dashboards that deliver real-time visibility into platform health, compliance posture, security status, and key performance indicators.
• Implement and manage Microsoft 365 security and compliance capabilities, including Information Protection, Data Loss Prevention, Data Lifecycle Management, Insider Risk Management, and Microsoft Defender.
• Support access management and identity governance by enabling single sign-on across cloud services and assisting with Privileged Access Management (PAM) initiatives.
• Partner with the cybersecurity team to monitor security posture, enforce best practices, and translate compliance requirements into platform controls.
• Administer eDiscovery processes, including conducting searches and managing data exports to support legal proceedings and internal investigations.
• Drive the deployment and governance of Agentic AI solutions built on the Power Platform, partnering with business and functional teams to ensure responsible, policy-aligned adoption.
• Assess the current Power Platform environment to identify gaps, recommend improvements, and lead the successful implementation of those enhancements.
• Develop and maintain automation frameworks and scripts to streamline the management of M365 services, reduce operational overhead, and improve consistency.
• Evaluate and operationalize Microsoft Copilot capabilities, including managing agent usage, Copilot Credits, and Pay-as-you-Go licensing within the tenant.
• Partner with IT and functional teams across global regions to translate business requirements into scalable, well-governed technical solutions.
• Manage the migration of telephony workloads to Microsoft Teams Phone System, coordinating with network, security, and business stakeholders.
• Manage the Google Workspace tenant—serving as a disaster recovery and business continuity (DR/BCP) solution in partnership with a managed service provider—to maintain collaboration capabilities during extended Microsoft service interruptions.
• Provide technical guidance, training, and enablement to support end-user adoption of new platform capabilities.

  Qualifications

  • Bachelor’s degree in Information Systems, Computer Science, or a closely related field; equivalent professional experience considered.
  • 7+ years of hands-on experience administering a single, large-scale Microsoft 365 commercial tenant with a global user base along with administering a GCCH tenant.
  • Deep expertise across Exchange Online, SharePoint Online, Microsoft Teams, OneDrive, and Power Platform.
  • Strong working knowledge of Microsoft 365 security, compliance, and governance features, including Microsoft Purview.
  • Demonstrated experience implementing and supporting Information Protection, DLP, Data Lifecycle Management, Insider Risk Management, Microsoft Defender, and Teams Phone System.
  • Proficiency in Microsoft Copilot administration, including agent management, Copilot Credits, and Pay-as-you-Go licensing models.
  • Hands-on experience with eDiscovery, including conducting searches and producing data exports for legal and investigative purposes.
  • Experience executing tenant-to-tenant migrations using tools like Sharegate and Quest ODM.
  • Strong scripting skills (PowerShell, Graph API) with a focus on automating M365 service management and reporting.
  • Knowledge of Power Automate, Power Apps, and Microsoft Intune.
  • Ability to administer Microsoft services across Windows, macOS, iOS, and Android platforms.
  • Excellent analytical and troubleshooting skills with a demonstrated ability to diagnose complex, multi-layered issues and implement effective solutions.
  • Strong written and verbal communication skills; able to clearly convey technical concepts to both technical and non-technical audiences at all organizational levels.
  • Proven ability to manage competing priorities, meet deadlines, and maintain composure in a fast-paced, globally distributed environment.
  • High degree of discretion and integrity when handling confidential or sensitive information.