You're How Old?

Five residents of Puzzlaria, Chris, Karl, Knightmare, Curtis, and Ross, are employed as Airfoil Technician, Communications Consultant, Space Planner, Lunar Energy Engineer, and Synthetic Food Nutritionist. They were having drinks at the Problematic Tavern. The waitress, attempting to be clever, asked if everyone at their table was old enough to order alchoholic beverages.

The bartender, who was walking by the table, interrupted, "yeah, I know these guys ... they are of age to purchase". He continued:

"The Communications Consultant is not younger than any of the other four. Curtis is not as old as Chris and not as young as Karl, who is not as old as the Lunar Energy Engineer, but not as young as Knightmare. The Airfoil Technician is not younger than the Space Planner, who is not younger than the Synthetic Food Nutritionist. Knightmare is not the youngest of the five ... and no two are the same age."

How is each Puzzlarian at the table employed?