Optimum Financial Group · 10 hours ago
Senior O365 Administrator
Plano, TX
Full-time
Onsite
Senior Level
5+ years expOptimum is a leader in the fast-paced world of connectivity, and they are seeking a Senior O365 Administrator for Messaging and Collaboration. This role is critical in managing and supporting the organization's messaging systems, ensuring seamless communication and collaboration across the company.
FinanceProperty & Casualty InsuranceAsset ManagementFinancial ServicesInsurance
Responsibilities
Manage and maintain the Microsoft O/M365 environment, including Exchange Online, Teams, SharePoint, and OneDrive
Ensure the availability, performance, and security of messaging and collaboration systems
Monitor and troubleshoot issues with end users, providing timely resolution and support
Interact with end users to troubleshoot reported problems or to perform required system maintenance activities
Escalate problems to Engineering Leads, management and/or vendors in a timely fashion
Perform general O365 administration tasks, including system backups, recovery, and monitoring system performance and capacity
Administer Exchange 2013 & 2019 on-premise for remote mailboxes and email relay
Maintain and troubleshoot Active Directory and Azure AD, including account maintenance and federation services
Resolve tickets related to O365, messaging, and collaboration tools in ServiceNow
Utilize PowerShell scripting to automate tasks and manage the O365 environment
Ensure compliance with SOX and other regulatory requirements related to messaging, collaboration, and general O365 administration
Day-to-day documentation of operations needs and process changes
Mentorship of team for skill and personal growth
Qualification
Required
Bachelor's degree or above in an IT-related field or equivalent work experience
Minimum of 5 years of technical experience with Microsoft O/ M365
Strong knowledge of Microsoft 365, particularly Exchange Online, Teams, SharePoint, OneDrive, and general O365 administration
Experience with on-premise Exchange and Active Directory
Proficiency in PowerShell scripting for automation and management of the O365 environment
Familiarity with email hygiene solutions and security compliance features
Excellent problem-solving skills and the ability to work under pressure
Company
Optimum Financial Group
Optimum Financial Group is dedicated to the financial security of its clients since 1969.
501-1000 employees
Funding
Current Stage
Late StageRecent News
2025-10-27
Canada NewsWire
2025-05-05
Company data provided by crunchbase