Jim Lange

Jim founded Lange Structural Group in 2009, and is the principal engineer. Jim has 18 years of structural engineering experience in Lincoln firms.  His experience ranges from large commercial, educational facilities, and Multi-Family Living, all the way to residential design.


Bachelor of Science-Civil Engineering-UNL-1996

States of Licensure:

Nebraska, South Dakota, Iowa, Alabama, Indiana, Kansas, Georgia, Minnesota, New Mexico, Idaho, Wyoming, Colorado, New York, Ohio, Texas, Oklahoma, Missouri, Ohio, Pennsylvania, Massachusetts, and North Dakota.

Jim’s Dog’s Name: Toby

Kyle Burner

After completing his M.S. degree Kyle began working at Lange Structural Group, LLC in 2010.   His experience includes the design and drawing of multiple building types including, schools, churches, multi-family dwellings, office buildings, and retail centers. 


Bachelor of Science-Civil Engineering-UNL-2008

Masters of Science-Civil Engineering-UNL-2010

States of Licensure:


Kyle’s Dog’s Name: Otis

Aaron Yakel

After working for 18 years in academics and research, Aaron moved to structural design and consulting in 2014. He is currently a design engineer at Lange Structural Group and has experience in the design of schools, churches, office buildings, advanced building analysis, and building renovations. During his time in academia, including 13 years in several positions at UNL, Aaron was involved in many research projects investigating the behavior and design of structures. This included designing and performing research projects, managing the activities of masters and doctoral researchers, and teaching structural analysis and design classes.


B.S. – Civil Engineering – UNL – 1996

M.S. – Civil Engineering – UNL – 2000

PhD – Civil Engineerig – UNL – 2009

Aaron’s Dog’s Name: Buttons

Steven Stauffer

After completing his M.S. degree Steven began working at Lange Structural Group in 2016.


B.S. Civil Engineering – UNL – 2014

M.S. Civil Engineering – UNL – 2016

Steven’s Dog’s Name: Lola