Senior Scheduler Specialist II- Crude, Vacuum and Hydrocracker Process Units, CB & I, Cartagena Refinery Project Colombia-Houston TX. START Date Sun, 05/01/2011 - 02:00 END Date Tue, 11/01/2011 - 01:00 Read more about Senior Scheduler Specialist II- Crude, Vacuum and Hydrocracker Process Units, CB & I, Cartagena Refinery Project Colombia-Houston TX.