Senior Voice / VoIP Engineer – Contract – Philadelphia, PA or Denver, CO

Senior Voice / VoIP Engineer Contract  2026-239

Location:  Philadelphia, PA, or Mount Laurel, NJ or Denver, CO
Visa Sponsorship: No

Start Date: May 2026
Assignment Length: 1 year

Experience Required: 10 years

Education Requirements: BS in IT, Engineering, or comparable arena, or 8–12+ years of demonstrable, hands‑on VoIP/voice engineering experience in place of a degree.

Please note – the client does not allow us to post the salary range, nor the company name. Please contact Tom@TheHiringCatalyst.com if you have questions.

We are working with a leading technology company that is seeking a senior-level Voice / VoIP Engineer with strong SIP fundamentals and the ability to independently design, troubleshoot, and support large-scale voice platforms.

This is a one-year contract, working from the company’s office in either Philadelphia, PA, Mount Laurel, NJ, or Denver, CO.

Your Role:

  • 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 Experience:

  • 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

To apply be sure to refer to Job 2026-239 and click here.
Or, email an updated resume to Tom@TheHiringCatalyst.com.

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