Senior Voice / VOIP Engineer

Lumiere Systems
Philadelphia, PA

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
Posted 2026-04-11

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