In 1979, Kirk graduated from Texas A & M University with a double major in math and civil engineering after attending Austin College for the first three years of his higher education.  He immediately took his first professional position as a plant design engineer for the huge Texas Eastman Corporation chemical plant in Longview, Texas. In 1983, Kirk joined what is now The Brannon Corporation as design engineer.  He became registered as a professional engineer in Texas  in 1985.

Kirk specializes in water conveyance systems design including the design of water treatment and wastewater treatment plants, water storage and pumping facilities and master planning of water and sewer systems.  In addition he has designed lakes and dams for private recreational lakes.  He is skilled with several computer programs for water system analysis, storm sewer analysis and for water surface profiles for storm water flow in open channels.

Kirk is now a principal in the firm and a vice-president.

His outside interests include his wife and kids, kids baseball, hunting and church choir.