Answer by  
                                                                                          Ronaldo91 (345)
                                                            
                          
                          
                                                          VLSI means very-large-scale integration, it refers to the design and manufacture of integrated circuits, such as microprocessors.  Usually you would run a design in a simulation prior to having the design committed to silicon to ensure quality and whether it can be optimized further.  In this job they're expecting someone to perform VLSI simulation.