Mark Tierney

Chief Technology Officer, SEI Sphere at SEI
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Mark Tierney is the Chief Technology Officer of SEI Sphere, which provides organizations with cyber protection designed to optimize, secure, and support the complex and evolving technology needs of today’s businesses. In this role, Mark provides strategic direction that oversees the processes that drive operational efficiency and technology innovations within the solution.

Prior to this role, Mark served as the Director of Technology where he lead the management, strategy and execution for a wide variety of technology services for SEI’s enterprise. Included among those services are data center and network operations, corporate IT and Help Desk operations, as well as database management, system administration, middleware and application support operations.

Manage a global team of five senior IT Directors and 200+ personnel supporting the above mentioned technologies and platforms. This includes support of proprietary and vendor technologies across many different platforms including EMC, VMWare, Cisco, Microsoft, Microsoft365, Oracle, Rancher/Docker, Linux, Windows, etc, as well support of public cloud applications on Microsoft Azure.

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  • SEI
    Chief Technology Officer, SEI Sphere