Robert Half's client in Scottsdale, Arizona is seeking a VoIP Engineer. This role will be hybrid (if local), but open to fully remote (if not local). Resolves trouble reports from customers, vendors, and other companies.Monitors network performance and troubleshoots problem areas as needed.Provisions and maintains IP voice related services such as SIP lines and SIP trunks, Hosted services, Metaswitch CommPortal and EAS/DSS on Metaswitch soft switch.Provisions and maintains IP voice related services such as SIP lines and SIP trunks, and Hosted services on the NetSapiens platform.Pre-tests newly established circuits and coordinates customer cuts with vendors.Evaluates and tests new equipment, software and firmware, such as IP phones, ATAs and toolsets.Coordinates number porting request with carriers, resellers and Company LNP Specialists.Coordinates with vendors on installation of equipment and ensure calls are routed correctly.Works with Product Teams to develop and implement new products and services.Assists in the development, implementation and maintenance of policies, training plans and procedures for NMC team members, resellers and end-users to follow.Provisions basic line services such as basic POTS, DID, ISDN and SS7 services.Coaches and mentors junior level team members for professional development.