Collaboration Services M365 Exchange & Security Administrator , Assistant Vice President
Core
Secure administration, implementation, documentation, and advanced support for Exchange Online, hybrid, and on-premises environments, alongside Microsoft Defender for Office 365 and enterprise email security services.
Role type
Senior IC M365 Exchange & Security Administrator
Builds
Secure mail flow, threat-protection capabilities, and operational resilience for business and technical users.
Domain
Financial Services / Enterprise Email Security
Required skills
Exchange Online administration, Exchange hybrid/on-premises management, Microsoft Defender for Office 365, email security controls, PowerShell scripting, Microsoft Graph APIs, Microsoft Entra ID, Conditional Access, Microsoft Purview, incident management, root cause analysis, technical documentation.
Preferred skills
Python, Power Automate, third-party email security integrations, DLP platforms, service monitoring, change management.
Technologies
Microsoft 365, Exchange Online, Exchange Server, Microsoft Defender for Office 365, Microsoft Purview, Microsoft Entra ID, PowerShell, Microsoft Graph, Python, Power Automate.
Responsibilities
Administer and support Exchange Online, hybrid, and on-premises services including mail flow, transport rules, connectors, and certificates. Manage Microsoft Defender for Office 365 and third-party email security services including anti-phishing, anti-spam, and threat investigation. Provide advanced support for production issues involving mail flow, authentication, and service health. Support secure onboarding of applications and platforms to Exchange services. Execute Exchange Server Subscription Edition lifecycle work, mailbox migrations, and legacy platform decommissioning. Monitor email threats and service health; investigate exceptions and improve detection. Lead technical troubleshooting during major incidents and engage vendors. Develop and maintain PowerShell and Microsoft Graph automation for administration and reporting. Maintain least-privilege administrative access using RBAC and identity-governance processes. Create and maintain technical standards, implementation plans, and operational procedures. Prepare for and participate in internal and external audit activities. Monitor Microsoft product changes and convert relevant changes into operational work. Identify opportunities to reduce technical debt and improve operational processes. Provide knowledge transfer and technical guidance to engineering and operations teams.
Seniority
Senior, hands-on IC
