Engineering Technologies, Inc.
Mechanical & Electrical Building Solutions

About Us

Since 1972, Engineering Technologies, Inc. (ETI) has built a strong reputation by providing innovative, comprehensive, and proven mechanical, electrical, plumbing, technology consulting, and design solutions to our clients.

ETI is committed to developing and retaining satisfied clients by providing enduring designs and the highest quality professional services. We strive to work in partnership with our clients to provide design options, opportunities, and technologies that best fit our clients' goals. ETI provides the leadership to deliver client satisfaction and outstanding engineering services, while maintaining an emphasis on project cost, safety, reliability, and visual impact when designing each project.

Thomas Ernst, PE


Tom has a passion for facilitating efficient design and thoughtful restoration from the ground up in all areas of life, both at work when designing electrical systems, and at home, as with his 1965 Chevy pickup. With 20 years of experience in electrical systems design, this Marine vet enjoys the process of seeing projects go from a challenging beginning to a satisfying end - it keeps him on the road to excellence at ETI. Whether it's working with a restaurant to renovate an existing lighting design, or engineering a fire alarm system for a new K-12 facility, Tom takes the same personal approach he did with his classic Chevy, going step-by-step until the project is ready to burn rubber.

Marty Kasl, PE, LEED AP


Marty is a mechanical engineer who has been with ETI since the late 1980's. LEED-certified in Sustainable Design, Marty has traveled the globe designing industrial boilers for cogeneration plants. He also serves on the State of Nebraska Boiler Safety Code Advisory committee and the City of Lincoln Fire Sprinkler and Chemical Examining Board. Marty's most recent project work has centered on educational facilities throughout Nebraska and urban mixed-use developments in downtown Lincoln. When not working on projects at ETI, Marty's adventurous spirit keeps him and his wife busy. They enjoy traveling, golf, racquetball, skiing, sailing, and scuba diving.

Dan Thompson, PE


As a mechanical engineer at ETI, Dan takes on challenges with a keen eye for detail, a steady hand for accuracy, and the ability to make quick, efficient decisions, just as he does on the pool table, taking shots with the careful calculation of a skilled engineer. These engineering talents may give him an edge when sinking the eight ball, but it's his three decades of experience that make him a skilled industry professional at ETI. Dan brings a focused spirit and competitive drive to ETI that helps his team create winning strategies. Although he may have finished third in the Las Vegas International Pool Championships, he's number one with his clients, coworkers, and company.

Dan Schinstock, PE


Dan's career started in the 70's as a mechanical engineer. Currently, he's a member of the American Society of Heating, Refrigeration, and Air Conditioning Engineers (ASHRAE), and the Nebraska Society of Healthcare Engineers (NSHE). When he's not whipping up solutions for engineering projects at ETI or playing with his three grandkids, Dan likes to stir things up in the kitchen with his passion for gourmet cooking. Dan's engineering skills and years of experience make him invaluable to ETI, while his cooking skills make him a favorite in the annual company chili cook-off.

Derek Kotschwar, PE, LEED AP, CxA


As a mechanical engineer, certified commissioning agent, and principal, Derek is a valued member of ETI. His favorite projects involve working on schools and in healthcare, and he's a member of the American Society of Heating, Refrigeration, and Air Conditioning Engineers (ASHRAE), the Nebraska Society of Healthcare Engineers (NSHE), and the Association of Energy Engineers (AEE). His passion for involvement in business and community organizations extends outside of the office, as Derek is a member of the Lincoln Children's Zoo Board and an original member of the Salt Valley Hunting Retriever Club (he can honestly say he works with a bunch of animals).

Shane Hoss, PE


Shane had no problem finding his place on the ETI team as an architectural engineer. During challenging projects, his skills and experience give him the electrical design tools he needs for a well-developed offense. He's a member of the Illuminating Engineering Society (IES) and a Registered Communications Distribution Designer (RCDD). As a soccer player and coach, Shane knows the importance of teamwork, and as an Iowa Hawkeye fan, he gets to play defense against his fellow Husker-loving coworkers.

Justin Veik, PE, LEED AP


Justin brings technical savvy to the table at ETI. His experience in commercial mechanical design includes PK-12 schools, higher education, offices, housing, retail, mixed-use developments, banks, athletic facilities, warehouses, and breweries. Justin enjoys the variety each project offers (especially brewery projects, as he's also a home brewer), and takes this passion to the community as a Teammates Mentor and board member of the North Downtown Alliance. Whether working on a developing project for ETI or brewing up a new batch of craft beer at home, Justin knows the right way to create a good buzz.

Tony Dupsky, PE


Tony Dupsky, an Architectural Engineer, helps lead one of ETI’s Lincoln mechanical teams. With a preference for unique and unusual project types and a love of classic muscle cars, Tony is never afraid of a project. He enjoys working on a variety of different buildings, including schools, multi-family residences, commercial offices, and pharmaceutical buildings. Never backing down from a job, no matter how challenging, is Tony’s vehicle to success.

Joel Thieman


Joel started his career at ETI back in 2006 as a CAD Technician and has since worked his way to a mechanical designer. He's a great catch for the company as he has passion for learning how things come together and for new techniques. When he's not helping tackle a challenging project at ETI, you might find Joel on a lake. With rod in hand and an eye for monster bass, he compares a good day fishing to the feeling of accomplishment when a big job is completed at ETI. These days, Joel is as busy at home as he is in the office with his biggest catch yet, a new baby.

Cindy Wood


Cindy Wood has been the finance manager at ETI since 2013, bringing expertise in all things pecuniary to company. She has been working in the industry since 2000 and is specialized in accounting, financial management, and being an excellent mother to her teenage daughter. Whether it’s working with architects and engineers to help budget and plan their expenses, or working with her daughter to make sure she gets to dance on time, Cindy is the glue that holds everything together.

Bill Fleischman


Bill is an electrical designer who has been with ETI since 2004. His favorite projects include designing electrical systems for schools, hospitals, and historic buildings. Outside the office, he loves fishing, camping, and spending time with his two kids. A Nebraskan born and bred, Bill loves nothing more than kicking back and watching his Huskers take a win, just as he loves winning over clients with his attention to detail and innovative, cost-effective design.