Epsilon Associates
Ryan Callahan, INCE, has extensive experience in the environmental engineering field, currently serving as an Associate, Senior Consultant, and Senior Engineer at Epsilon Associates, Inc. since July 2017. Prior to this role, Ryan held the position of Environmental Engineer IV at Tech Environmental, Inc. from January 2006 to July 2017. Educationally, Ryan obtained a Bachelor of Science in Engineering from Northeastern University, completing the degree in 2006.
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