Senior SharePoint Online Platform Engineer

Tokio Marine Group of Companies•Plano, TX

About The Position

The Senior SharePoint Online (SPO) Platform Engineer is responsible for the tactical operation, governance, and optimization of the enterprise SharePoint Online Platform. This role serves as the functional and technical authority for SPO, defining platform standards, modernizing templates and capabilities, ensuring secure and compliant collaboration, and aligning SPO to enterprise identity and lifecycle practices. A core responsibility is leading and guiding the offshore managed services team to ensure high-quality, consistent execution of SPO operations, projects, governance processes, and support activities.

Requirements

7+ years of experience supporting and administering SharePoint Online and/or SharePoint On-Premises.
Deep knowledge of SPO administration, permissions, site architecture, lists/libraries, SPFx, and Microsoft 365 capabilities.
Demonstrated experience coordinating or leading offshore managed services or vendor-led support teams.
Strong understanding of enterprise governance, metadata, taxonomy, and information lifecycle management.
Proficiency with Power Automate and PowerShell (PnP) for building workflows and platform automation.
Strong understanding of Entra ID, ADFS, and identity-driven access models.
Excellent communication skills with the ability to influence stakeholders at multiple levels.

Nice To Haves

Experience leading large-scale SPO migrations or modernization initiatives.
Familiarity with Workday and SailPoint identity integrations.

Responsibilities

Platform Ownership & Architecture • Serve as the principal internal SME for SharePoint Online, overseeing platform roadmap execution, capability evaluation, and alignment with the infrastructure team supporting the broader MS 365 Suite.
Define and maintain enterprise information architecture, site taxonomy, metadata standards, and template design.
Ensure SPO integrates effectively with Entra ID, Workday, SailPoint, and identity-driven lifecycle processes to support secure access and collaboration.
Partner with Enterprise Architecture to align SPO capabilities with broader digital workplace and information lifecycle strategies.
Governance, Operations & Managed Services Leadership • Establish and enforce SPO governance standards, including permissions models, sensitivity labels, retention policies, external sharing rules, and compliance requirements.
Lead and coordinate the offshore managed services team supporting day-to-day SPO operations, provisioning, requests, troubleshooting, and incident management.
Provide guidance, prioritization, and escalation support to ensure service quality and SLA performance from offshore support.
Maintain operational runbooks, intake workflows, and escalation procedures to drive consistency and control across the platform.
Collaborate with vendor management teams to assess performance, compliance, and continuous improvement opportunities.
Monitor platform health, usage, capacity, and performance proactively identifying issues or risks.
Modernization & Automation • Lead modernization initiatives, including Classic to Modern site migrations, template upgrades, and adoption of new SPO/M365 capabilities.
Use Power Automate to build and maintain workflows supporting SPO operations, such as approvals, provisioning automation, metadata updates, notifications, and lifecycle processes.
Develop automation scripts using PnP PowerShell, Graph API, or Power Automate to streamline provisioning, enforce governance, and reduce manual effort.
Cross-Functional Collaboration • Partner closely with the infrastructure team, who owns the Microsoft 365 tenant and core cloud platform services, to ensure SPO configurations, policies, capacity planning, and roadmap changes align with enterprise standards and operational requirements.
Partner with Corporate Communications on syndication, targeted messaging, site design standards, and enterprise content distribution strategies.
Collaborate with Information Security, Infrastructure, Enterprise Architecture, and App Dev teams to ensure SPO meets security, compliance, and architectural expectations.
Engage business site owners to improve usability, structure, functionality, and alignment to enterprise conventions.
Risk Management & Compliance • Ensure compliance with audit, legal, data retention and security policies across SPO.
Maintain permissions hygiene and enforce data governance standards. Identity drift, site sprawl, nonstandard provisioning, and unmanaged external sharing.
Maintain documentation and governance artifacts to support audit readiness.
User Enablement & Knowledge Management • Develop training, guidance, documentation, and communication materials to support site owners, business units, and offshore teams.
Support change management efforts related to governance updates, template changes, and new feature rollouts.
Other Functions Comply with proper internal controls as necessary to conduct job functions and/or carry out responsibilities and/or administrative activities at the Company.
Establish and build strong working relations and partnerships with various levels of IT management, staff and business stakeholders.
Perform special projects and other duties as may be assigned.