Senior Microsoft 365 Platform Architect & IAM Lead

Repligen Corp; Waltham (MA); On-site; USD 140,000 - 180,000; Full time

Benefits offered by this job

Health/dental/vision insurance

Retirement benefits

Flexible spending accounts

Paid time off

Job summary

Repligen Corp in the United States seeks a Senior Microsoft 365 Platform Engineer to lead the engineering, administration, governance, security, and ongoing improvements of our global Microsoft 365 platform.

This technical lead will oversee SharePoint Online, Teams, Exchange Online, Entra ID, Intune, and IAM, partnering with Cybersecurity to implement robust controls and scalable, compliant digital workplace services across the enterprise.

Qualifications

• Bachelor's degree in IT/CS or equivalent experience.
• 7+ years of hands-on Microsoft 365 administration and engineering in a medium-to-large enterprise.
• Deep expertise in Microsoft 365 Administration, SharePoint Online, Teams, Exchange Online, OneDrive, Entra ID and IAM.
• Strong PowerShell scripting and Microsoft Graph automation experience.
• Experience with Hybrid Active Directory and Entra ID environments.
• Expertise in SSO, MFA, Conditional Access, RBAC, PIM, and Identity Governance.

Responsibilities

• Own the administration, governance, and 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 M365 platform issues.
• Design and implement secure, scalable M365 solutions aligned with security standards.
• Lead SharePoint governance, permissions management, site lifecycle, and migration initiatives.
• Manage IAM capabilities including Hybrid Identity, SSO, MFA, Conditional Access, PIM, and Identity Governance.
• Develop automation using PowerShell and Microsoft Graph.
• Monitor platform health, security posture, adoption, and compliance metrics.
• Partner with Cybersecurity to implement M365 security, compliance, and governance controls.
• Participate in incident response and root cause analysis; create runbooks and docs.

Skills

Microsoft 365 Administration

SharePoint Online Governance

IAM & Entra ID

PowerShell scripting

Microsoft Graph automation

Hybrid Identity / SSO

MFA & Conditional Access

Education

Bachelor's degree in Information Technology or Computer Science

Tools

Microsoft 365 suite

Entra ID (Azure AD)

Intune

Graph API

Job description

Repligen Corp in the United States seeks a Senior Microsoft 365 Platform Engineer to lead the engineering, administration, governance, security, and ongoing improvements of our global Microsoft 365 platform.

This technical lead will oversee SharePoint Online, Teams, Exchange Online, Entra ID, Intune, and IAM, partnering with Cybersecurity to implement robust controls and scalable, compliant digital workplace services across the enterprise.