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Mark Johnston is an experienced software developer and entrepreneur with a strong background in CAD programming and application development. Since June 2011, Mark has served as the owner and software developer at CAD Programming Solutions. Additionally, Mark has been a software application developer at Silo IT Group since January 2015, focusing on the design and development of business applications and plug-ins with significant database expertise. Prior to these roles, Mark held the position of Information Systems Manager at Westmark Products, Inc. from October 1998 to July 2014, where contributions included software design and development as well as CAD management.