An exciting career awaits you At MPC, we're committed to being a great place to work - one that welcomes new ideas, encourages diverse perspectives, develops our people, and fosters a collaborative team environment. Marathon Petroleum Company's Catlettsburg Refinery located in Catlettsburg, KY is seeking a Process Engineer II/. The Process Engineer will report to the Process Engineering Manager, and monitors process performance and identifies opportunities for improving yield, energy efficienc