The CAS Engineering Team

Curt A. Schreffler, P.E., President
Curt is a 1987 graduate of Carnegie Mellon University (BS - Civil Engineering). He founded CAS Engineering in 1993 and oversees projects in Maryland, DC, and Virginia. He is a licensed Professional Engineer in all three of these jurisdictions. Curt lives in Frederick, Maryland with his wife and two children. Outside of work, Curt enjoys running and cycling.

Jeffrey A. Robertson, Branch Manager/Senior Project Manager
Jeff is a 1994 graduate of Ohio University (BS - Civil Engineering). Jeff joined CAS Engineering in 1996 and oversees the Montgomery County division, with a specific emphasis on infill residential development. Jeff lives in Frederick, Maryland with his wife and three children. He coordinates the annual Greater Potomac Golf Classic benefitting the Julie Ann Robertson Cashour (JARC) Memorial Fund. The JARC Memorial Fund has raised over $425,000 for charities involved with Neurofibromatosis (NF) or other deserving charities.

James M. Ochs, Operations Manager/Senior Project Manager
Jim joined CAS Engineering in 2002. In addition to project management and design, Jim also handles information technology (IT), graphic design and marketing, database development, and process streamlining for the office. Jim lives in Frederick, Maryland with his wife and three children. He enjoys hiking, kayaking, and spending time with his family.

Eric B. Tidd, P.E., Senior Project Manager
Eric is a 2001 graduate of the Colorado School of Mines (BS - Civil Engineering). Eric joined CAS Engineering in 2003 and is certified as a Professional Engineer in the State of Maryland. He lives in Littlestown, Pennsylvania with his wife and daughter. He enjoys spending time with his family, Philadelphia sports, and photography.

Jared M. Sims Carhart, P.E., Senior Project Manager
Jared is a 2012 graduate of Colorado State University (BS - Civil Engineering) and is currently attending Johns Hopkins Whiting School of Engineering in pursuit of a Masters of Civil Engineering degree. Jared joined CAS Engineering as a Project Engineer in 2012 and currently lives in Sykesville, Maryland with his wife, son and two dogs. Outside of work, Jared enjoys golfing, trail running, and homebrewing.

Stephanie M. Fisher, Project Engineer
Stephanie is a 2015 graduate of the University of Maryland, College Park (BS - Civil Engineering). Stephanie joined CAS Engineering as a Project Engineer in 2018. She currently lives in Frederick, Maryland with her husband Harrison and her daughter Isabella. Outside of work, Stephanie enjoys working out, hiking, spending time with her family and playing board games.

Jeffrey A. Hammond, Prof. L.S., Survey Project Manager
Jeff joined CAS Engineering in 2010. He is a licensed Professional Land Surveyor in Maryland. Jeff lives in Frederick with his wife. He enjoys playing softball and golf, and going to church.

Phillip D. Long, Permit Technician
Phil is a 2005 graduate of Loyola University of New Orleans (BA - History). Phil joined CAS Engineering in 2012 and coordinates permit processing in Maryland and DC. He lives in Brunswick, MD with his wife, two daughters, and son. Outside of work, Phil enjoys the art of slow cooking food on his smoker, canoeing, fly fishing, and tending to his vegetable garden.

Patrick N. Kauffman, Survey Technician
Pat is a 2007 graduate of the Frederick Community College (AS - General Studies). Pat joined CAS Engineering in 2002. He leads a full-time survey crew. Pat lives in Frederick, Maryland with his wife. He enjoys working out, playing with his dog and spending time with his wife.

Bradley D. Ralph, Survey Technician
Brad is a 2002 graduate of the Pittsburgh Technical Institute (AS - Computer Aided Drafting). Brad joined CAS Engineering in 2008. He works as an instrument operator on a full-time survey crew. Brad lives in Martinsburg, West Virginia with his wife. He enjoys spending time outdoors, fishing and hunting.

Karen A. Martino, Engineering Support/Property Management
Karen is a 1982 graduate of the University of Maryland (BS - Geography and Cartography). Karen joined CAS Engineering in 1993. She provides Administrative Assistance and Technical support in the Maryland and the DC Offices. Karen lives in Frederick, Maryland with her family. She enjoys fishing, bow hunting, and other outdoor activities.

Darci D. Holston, Office Manager
Darci is a 1988 graduate of Towson State University (BS - Business Administration). Darci joined CAS Engineering in 2002 and handles office administration and accounting. Darci lives in Woodbine, Maryland with her husband, two daughters, two dogs, and two cats. She enjoys spending time with family and friends, the beach, movies, cooking, entertaining, reading, and shopping.

David C. Landsman, P.E., Prof. L.S., Manager
Dave is a 2008 graduate of the University of Maryland (BS - Civil Engineering) and 2013 graduate of Mount Saint Mary's University (MBA - Finance). Dave co-founded CAS Engineering-DC, LLC in 2015 after starting with CAS Engineering in 2003 as an intern and full-time since 2008. He manages the day-to-day operations, engineering design, surveying, and permitting for the office. Dave is a licensed Professional Engineer in the District of Columbia, Maryland and Virginia, and a licensed Professional Land Surveyor in Maryland and the District of Columbia. He is also certified as a LEED Green Associate. Dave lives in Alexandria, Virginia with his wife, two daughters and dog. He enjoys breweries, hiking, skiing, biking, and spending time outdoors with family and friends.