1. Materials and Construction Industries Chair, Dept. of Civil and Environmental Engineering, Mississippi State Univ., Mississippi State, MS.
2. Paving Asphalt Specialist, Hunt Refining Company, Tuscaloosa, AL.
3. Product Development Engineer, Ingevity, North Charleston, SC.
4. Technical Director–Asphalt Binders, Paragon Technical Services, Inc., Richland, MS.
5. Undergraduate Research Assistant, Dept. of Civil and Environmental Engineering, Mississippi State Univ., Mississippi State, MS.