W Punta Cana, Adult All-Inclusive Appoints Miriam Hernandez as Director of Sales & Marketing and Julio Cesar Valdivia as Executive Chef | #MiriamHernandez #DirectorOfSalesAndMarketing #JulioCesarValdivia #ExecutiveChef #WPuntaCana #MarriottBonvoy #HospitalityLeadership #ExecutiveAppointments #LuxuryResortNews Brand-Specific: #WHotels #HospitalityLeaders #Hozpitality