Job Title: Senior Voice / VoIP Engineer Location: Philadelphia, PA, Mount Laurel, NJ, or Denver, CO
Onsite - Monday to friday
Contract: 12 months
Must Have
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
Position Overview:
Senior Voice / VoIP Engineer
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
Additional information: The key items that they re needing is someone that can take a set of business requirements and build out a SIP based voice solution. They would like this person to have experience working within a Linux environment, understanding of SBC s (Oracle SBC s are what they use but open to any), some automation experience would be great, and exposure to API s like SOAP or REST would be great. Another bonus would be experience with Broadworks or Broadsoft.This manager also called out that people who have been heavily focused on working with Cisco technologies typically don t do well, So we do not need a UCCX type of person.
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