John Marstein has been working at Productivity Inc since January 2015 in the Tooling and Accessories Sales department. Prior to that, John worked at Tooling Science Inc. from August 2010 to January 2015 as a Machinist. John also has experience as a Machinist at Standard Iron & Wire Works from May 2006 to August 2010. John completed their education at Central Lakes College in 2007.