Principal VOIP Engineer, Metaswitch Platform Experience

Responsibilities

• Provide support for SIP and TDM based soft switch translations, facilities and features on the Metaswitch Call Agent and Media Gateways, Enhanced Application Servers, and SBCs.
• Maintain and update LERG daily.
• Extensive experience supporting central office switching and softswitch platforms, including legacy TDM systems (e.g., Nortel DMS-100, Lucent 5ESS) and modern VoIP/SIP infrastructures.
• Deep expertise in SS7, SIP, PRI, media gateways, and session border controllers, including trunk provisioning, call routing, E911, and inter‑carrier interconnects.
• Proven ability to troubleshoot end‑to‑end voice issues across TDM and IP transport layers, ensuring high availability in geographically redundant central office environments.
• Support Product Engineering with systems architecture planning, system implementation guidelines, and engineering guidelines.
• Perform lab testing, design, and architecture work.
• Architect new VoIP products and features.
• Coordinate with vendors, analyze appropriate product offering and develop new products and services for the network.
• Test and approval of new product sets.
• Provide technical assistance and support to other Service Management teams.
• Assist management with all high‑priority projects and prepare technical presentations.
• Provide off‑hours, on‑call, and weekend coverage as required.
• Perform other duties as required to support the business and evolving organization.

Qualifications

• High school diploma or GED.
• Bachelor's Degree in related field; or equivalent combination of education and experience.
• Minimum of 15 years of experience in a Class 4/5 TDM, softswitch, or hybrid central office environment, with strong experience in Metaswitch and exposure to platforms such as BroadSoft, Lucent 5ESS, Nortel DMS, and GENBAND G6.
• Experience with hosted and cloud-based voice applications and services.
• Experience with network monitoring, management and troubleshooting with various tools such as Packet Sniffer utilities, Wireshark and Metaswitch SAS.
• Experience in designing, implementation, and maintaining secure IP networks.
• Extensive knowledge of feature delivery in hosted VoIP environment (hosted services, SIP trunking, PRI trunking via IAD, VoIP CPE, enhanced business features, etc.).
• Extensive knowledge of VoIP protocols, SIP signaling with emphasis on RTP and SDP, network QoS, IP routing, Ethernet switching (including 802.11q, 802.11p, 802.3af), and packet tagging mechanisms.
• Ability to interface well with customers (internal and external).