Senior Voice / VoIP Engineer

Senior Voice / VoIP Engineer Job Location: Philadelphia, PA, Mount Laurel, NJ, or Denver (Englewood), CO. Job Type: Long Term Contract Position Overview: We are seeking a senior-level Voice/VoIP Engineer with strong SIP fundamentals and the ability to independently design, troubleshoot, and support large-scale voice platforms. Key Responsibilities Design and support SIP-based voice and VoIP solutions, including call center and IVR use cases Troubleshoot SIP signaling, media flows, and complex voice issues across systems Translate business requirements into technical voice and integration designs Operate with a high degree of autonomy, owning technical decisions and outcomes Collaborate closely with engineering teams during design, escalation, and certification efforts Required Qualifications Strong hands-on expertise with SIP protocols, signaling, and media troubleshooting Solid Linux proficiency, including CLI-based system support and diagnostics Experience with VoIP platforms such as PBX systems, SIP trunking, or service provider voice environments Systems-level problem-solving skills across multiple components and technologies Basic scripting experience to support automation and operational efficiency Preferred Experience SBC’s: Ribbon, Audiocodes. (e.g., Oracle/Acme Packet or comparable platforms) BroadWorks or similar carrier-grade voice platforms Exposure to Cisco voice technologies Experience supporting large-scale, multi-region or multi-country voice deployments