The System Engineer will design, deploy, maintain and support telecom systems including TDM switches, (DMS 100, DMS 10, Redcom, Mitel), VoIP platforms (MetaSwitch), SS7 signaling systems for call routing, number portability, CLASS features, and implement and maintain E911 systems ensuring compliance with public safety regulations. The Systems Engineer is responsible for the design, implementation, and maintenance of telecommunications infrastructure, including legacy TDM systems, modern VoIP/IP-based networks, SS7 signaling, and E911 services.