Principal VOIP Engineer, Metaswitch Platform Experience

Ziply Fiber

Principal VoIP Engineer managing a clustered Metaswitch network for Ziply Fiber. Responsible for VoIP protocol expertise and system design in a remote capacity.

Posted 6/19/2026full-timeRemote • Washington • 🇺🇸 United StatesLead💰 $97,500 - $152,000 per yearWebsite

Tech Stack

Tools & technologies

CloudSwitchingVoIP

About the role

Key responsibilities & impact

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.
Maintaining and updating 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 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.
Performs other duties as required to support the business and evolving organization.

Requirements

What you’ll need

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).

Benefits

Comp & perks

Medical
Dental
Vision
401k
Flexible spending account
Paid sick leave and paid time off
Parental leave
Quarterly performance bonus
Training
Career growth and education reimbursement programs

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills & Tools

SIPTDMsoftswitchSS7PRIVoIPnetwork monitoringnetwork troubleshootingIP routingEthernet switching

Soft Skills

troubleshootingtechnical assistanceproject managementcommunicationcustomer interface

Certifications

Bachelor's DegreeGED