Mark is a Principal Engineer at VMware working across areas of interest such as cloud management, cloud native applications, and open source. Currently, he is leading the work on serverless within VMware. Mark contributes to a wide range of open source projects and is the VMware representative for the Cloud Foundry TAB, CNCF, and OCI.

Mark has spoken at a number of conferences, most recently KubeCon 2017 where he co-presented "State of Serverless".