cocinero
cook
cocina
kitchen
+
-ero
noun suffix (person who does something)
Cocinero means cook and is formed from the Spanish word cocina0 (kitchen0) plus the suffix -ero1, which indicates a person who does something1. So, a cocinero is a person who works in the kitchen.
noun
  1. cook
    A person who prepares food for eating
    El cocinero preparó un delicioso plato de paella. // The cook prepared a delicious dish of paella.