Senior Microsoft 365 Platform Engineer - IAM & Security Lead

Repligen Corporation; North Carolina; On-site; USD 140,000 - 180,000; Full time

Benefits offered by this job

Health benefits

Paid time off

Retirement benefits

Flexible spending accounts

Job summary

Repligen Corporation seeks a Senior Microsoft 365 Platform Engineer to lead the engineering, administration, governance, security, and continuous improvement of our global Microsoft 365 platform.

This role will serve as the technical lead for Microsoft 365 collaboration, IAM, Entra ID, and endpoint management services, ensuring secure, scalable, and reliable digital workplace solutions across the enterprise.

Qualifications

• Bachelor's degree in Information Technology, Computer Science, or related field, or equivalent experience.
• 7+ years of hands‑on Microsoft 365 administration and engineering experience in a medium‑to‑large enterprise.
• Deep expertise in Microsoft 365 Administration, SharePoint Online Administration & Governance, Microsoft Teams, Exchange Online, OneDrive for Business, Microsoft Entra ID, IAM, and Microsoft Intune.

Responsibilities

• Own the administration, support, governance, and continuous improvement of Microsoft 365 services, including SharePoint Online, Teams, Exchange Online, OneDrive, Entra ID, and Intune.
• Serve as the Tier 3 escalation point and technical authority for Microsoft 365 platform issues and initiatives.
• Design and implement secure, scalable M365 solutions aligned with enterprise architecture and security standards.
• Lead SharePoint governance, permissions management, site lifecycle management, collaboration standards, and migration initiatives.
• Administer and enhance IAM capabilities including Hybrid Identity, SSO, MFA, Conditional Access, PIM, and Identity Governance.
• Support enterprise application integrations using SAML, OAuth, OpenID Connect, and SCIM.
• Manage endpoint solutions through Microsoft Intune and Windows Autopilot, including device provisioning, compliance, application deployment, and endpoint security.
• Develop automation and operational improvements using PowerShell and Microsoft Graph.
• Monitor platform health, performance, security posture, adoption, and compliance metrics.
• Partner with Cybersecurity teams to implement M365 security, compliance, and governance controls.
• Participate in incident response, root cause analysis, and continuous service improvement activities.
• Create and maintain architecture documentation, standards, runbooks, and operational procedures.
• Evaluate Microsoft roadmap enhancements and lead the adoption of new technologies and platform capabilities

Skills

Microsoft 365 Administration

SharePoint Online Administration

IAM / Entra ID

PowerShell

Microsoft Graph automation

Endpoint management (Intune)

Hybrid AD / Entra ID

SSO / MFA / Conditional Access

Security governance

Education

Bachelor's degree or equivalent in IT/CS

Tools

Microsoft Graph automation

Microsoft Defender

Purview

ServiceNow

Job description

Repligen Corporation seeks a Senior Microsoft 365 Platform Engineer to lead the engineering, administration, governance, security, and continuous improvement of our global Microsoft 365 platform.

This role will serve as the technical lead for Microsoft 365 collaboration, IAM, Entra ID, and endpoint management services, ensuring secure, scalable, and reliable digital workplace solutions across the enterprise.