About Inberg-Miller Engineers

Inberg-Miller Engineers is a company with experienced professionals, supported with modern laboratories and equipment. Our job is to provide technical assistance to others. Our team specializes in various disciplines to include civil, environmental, geotechnical, surveying, and construction materials testing. We work with everyone throughout Wyoming and the Inter-Mountain West. 

IME Staff

Our staff consists of a complementary group of individuals who provide our clients with solutions to a wide variety of problems.

We are fortunate to be surrounded by amazingly talented people who have diverse skills and are of the highest character. We employ over 65 civil, geotechnical, and environmental engineers, land surveyors, scientists, technicians, and administrative personnel.

Our staff holds advanced degrees and training in specific disciplines, in addition to being versatile enough to assist in Inberg-Miller’s overall mission of “Quality Solutions through Teamwork”.  

IME Leadership

Derek Baker, P.E., P.G.


Cheyenne, WY

Terri Warrior

Corporate Secretary

Riverton, WY

Jeremy Hernandez

Executive Vice President
Chief Financial & Operations Officer 
Office Manager

Riverton, WY

Michael Brown, P.E.

Senior Vice President- Chairman of the Board

Civil Department Head
Office Manager

Green River, WY

Rami Ksaibati, P.E., M.S.

Vice President

Geotechnical Department Head
Office Manager

Greeley, CO


Randy Stelzner, P.L.S., CFedS

IME Survey Manager



Riverton, WY

Jose Pereda

IME Drilling Manager

Riverton, WY

Jamie Kuklok 

Environmental Scientist
Environmental Department Head

Casper, WY

Mike McClure

CMT Department Head

Cheyenne, WY

Douglas Rigby, Ph.D

Senior Geotechnical Engineer
Office Manager

Albuquerque, NM

C. Dawn Whillhelm, P.E.

Senior Civil Engineer
Office Manager

Riverton, WY

Gerald “Jerry” Williams, P.E.

Senior Civil Engineer
Office Manager

Gillette, WY

Peter Melander, EIT

Civil Engineer
Office Manager

Casper, WY

The Company Culture is the best part

IME’s work culture is built on empowering the individual to ensure the success of our team. We know that through collaboration, transparency, and teamwork, we have the power to make a difference. We work together to get the job done!


Inberg-Miller Engineers believe that job site safety is our top priority and will continue prioritizing safety while performing work at your site. We have developed this long-standing culture of safety by conducting weekly safety meetings company-wide, weekly office safety meetings, job site tailgate meetings, performing job site analyses (JSAs), attending site-specific safety training at various facilities, and attending annual company-wide meetings at our yearly corporate safety week. We are proud of our low safety incident rates and the numerous safety awards we have received through the Wyoming Contractors Association for zero-incident rates based on man-hours worked.

Accreditations & Associations

Let’s Discuss Your Next Project

Fill out the form or give us a call! 

Business Hours:

Monday – Friday 8 a.m. to 5 p.m.

(307) 856-8136