1. Ph.D. Candidate, Center for Underground Infrastructure Research and Education, Univ. of Texas at Arlington, Arlington, TX; Practice Leader–Water, KCI Technologies, Dallas, TX; Chairman, AWWA Gasket Materials for Waterworks Service Committee.
2. Ph.D. Candidate, Dept. of Civil Engineering, Center for Underground Infrastructure Research and Education, Univ. of Texas at Arlington, Arlington, TX.
3. Senior Engineer, Dallas Water Utilities, City of Dallas, Dallas, TX.
4. Postdoctoral Researcher, College of Civil Engineering, Fuzhou Univ., Fuzhou, Fujian, China.
5. Adjunct Professor and Researcher, Dept. of Civil Engineering, Center for Underground Infrastructure Research and Education, Univ. of Texas at Arlington, Arlington, TX.