Leadership

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

President

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.

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.

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.

Stephen Coates, PE

Mr. Coates has thirty years of experience in managing, planning and designing various public works and private development projects.

David Holden

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.