Mohammed Saleem, PE, SE
Chief Executive Officer
Mr. Saleem has over 24 years of experience in numerous high-profile roadway, bridge, and infrastructure engineering projects.
Lori L. Quigg, PE
Ms. Quigg has over 25 years of experience in the transportation and construction industry. She oversees all aspects of the firm, including Administration, Operations and Business Development.
Meraj Samina Saleem
Executive Vice President
Ms. Saleem has oversight and decision making of all Quigg Engineering activities, including Operations, Program Management, Business Development and Human Resources. She also has a lead role in Marketing.
Rebecca L. Stocker
VP of Administration
Ms. Stocker oversees all human resources and accounting aspects of the firm.
Ross Monk, PE
VP of Business Development
Mr. Monk brings over 35 years of transportation engineering experience to QEI. His experience includes both traditional design/bid/build and design-build deliveries.
Todd Welz, PE
VP of Operations
Mr. Welz brings over 30 years of experience specializing in transportation projects involving design and construction of major urban facilities and airports.
Jameel Ahmed, PE
Mr. Ahmed has over 23 years of experience in civil and structural engineering and surveying, including maintenance-of-traffic, traffic signals, drainage, grading plans, preparation of cost estimates and specifications and construction drawings.
Michael Vail, PE
Mr. Vail brings over 27 years of experience in various areas including construction, materials, design, and traffic.
Seth Johnson, PE, PTOE
Mr. Johnson has extensive professional experience in the areas of Intelligent Transportation Systems (ITS) planning and design, transportation engineering, traffic operations analysis and modeling, traffic data collection, and corridor/safety studies.
Julian Gnatenco, PE, PTOE
Mr. Gnatenco has 25 years of experience in the field of Civil and Transportation Engineering and he has been involved in all aspects of traffic engineering.
Bridget Barrett, PE, PTOE
Ms. Barrett has extensive experience in the areas of Intelligent Transportation Systems (ITS), transportation modeling and planning, and traffic engineering.
Bridges & Structures
Michael Cima, PE, SE
Mr. Cima has over 26 years of experience in transportation-related structure assessment, plan development, inspection, policy development, and management.
David Booher, PE, SE
Mr. Booher brings over 30 years of experience in transportation planning and design, including project management of highway, drainage and bridge projects.
David Bayler, PE
Mr. Bayler has 41 years of experience in various areas including construction, materials, design, and land acquisition.
Herbert Jung, PE
Mr. Jung has over 30 years of experience with the Illinois Department of Transportation, including 18 year as the Construction Engineer and nearly 13 years in Materials in multiple capacities.
L. Scot LaSalle, PE
Mr. LaSalle has 31 years of public sector experience with the Illinois Department of Transportation delivering various aspects of transportation projects.
Dean Bauer, PLS
Mr. Bauer has over 30 years of experience in land surveying and route surveys along with preliminary and final plat preparations, subdivision calculations and design, topographic drafting and design.
William Kenter, PLS
Mr. Kenter offers 34 years of surveying experience, utilizing his Professional Land Surveyors license to support the work on government, municipal, railroad and private projects throughout the United States.
Environmental Studies & Permitting
Stephen Coates, PE
Mr. Coates has thirty years of experience in managing, planning and designing various public works and private development projects.
Mr. Holden has 27 years of experience working on civil design projects. He is responsible for the general coordination with clients and other design disciplines during the entire design of multiple projects.