The Stevens Technical Services Team

We believe in an organic and diverse team environment that can evolve and adapt as clients find and begin to rely on Stevens Technical as a trusted source for quality engineering consulting services. Committed to innovation and creativity, Stevens Technical is always ready to meet the needs of its clients and the challenges of growth.

Roma G. Stevens, P.E., PTOE


President and Founder Roma G. Stevens, P.E., PTOE brings nearly 30 years of civil engineering experience in consulting, academic instruction and research. Starting out in structural engineering and serving as a professor for the first ten years of her career, Roma transitioned to transportation receiving a Master’s degree from Texas A&M University in 2005. Roma is a known expert in VISSIM modeling and ITS research planning and design. Roma is also considered a national expert in hurricane evacuation modeling. Roma has managed and completed projects all over the world including for the FHWA, National Academy of Sciences, FEMA, Army Corp of Engineers, TxDOT, City of Houston, and HGAC.

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Charles R. Stevens Jr. P.E., PTOE

Principal – Traffic

Principal Charles R. Stevens Jr., P.E., PTOE brings nearly 20 years of civil engineering experience in consulting and research. As a consultant, Charles has extensive experience in traffic engineering studies and design working for clients including TxDOT, Harris County, City of Houston, and various municipalities. As a researcher, Charles became known for expertise in the areas of transportation systems management and operations (TSMO), unmanned aerial systems (UAS), and asset management and has served as a principal investigator for the FHWA, USDOT, TxDOT, and HGAC.

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Jenny Kim, P.E.

Traffic Engineer

Traffic Engineer Jennifer Kim, P.E., has over 10 years of experience in traffic engineering and has served clients in both the public and private sectors including TxDOT, METRO, City of Houston, and Harris County. Mrs. Kim specializes in traffic signal design, traffic control, signal timing, and intersection/safety traffic studies.

Mahmud Bilaidi

Chief Designer

Chief Designer, Mahmud Bilaidi started his career over 20 years ago with the City of Fort Worth and the Dallas District of TxDOT.  Recently returning to Texas after three years of serving as Chief Engineer for Dubai UAE Roads & Transport Authority,  Mahmud will lead traffic & transportation design services within Stevens Technical.  Mahmud has extensive experience in traffic signalization, illumination, and signing and markings PS&E and Construction management.  He has worked on projects for TxDOT Dallas, TxDOT Houston, City of Dallas, City of Houston, Harris County, Fort Bend County, City of Galveston, City of Bryan, City of Pearland, City of Pasadena, Baytown, League City and Round Rock to name a few.

Abdel Rahman Trawi

Abdel is graduate of Texas A&M University receiving a Master of Engineering.  Abdel previously held the position of Civil Site Engineer for Drake and Scull International in Dubai and received his Bachelor’s of Engineering from Lebanese American University.

Rishabh R. Desai

Rishabh is graduate of University of Texas at Arlington receiving a Master of Engineering.  Rishabh previously held the position of Infrastructure Engineer/Planner with Facile Maven and Town Planner with Design Point Consultants in Gujarat India. Rishabh received a Bachelor of Civil Engineering and Master in Town and Country Planning from Gujarat Technological University.

Meghan Calloway


Meghan is graduate of Sam Houston State University receiving a Bachelor of Arts in English.  Meghan provides expert technical writing support and aides staff members in their everyday activities.