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Sustaining Engineer

Essential Functions

  • Installation and commissioning of new voice network nodes; includes but not limited to Session Border Controllers, TDM Gateways, and back office servers.
  • Maintain existing voice network elements; performing emergency recovery on failed components and coordinate with vendor TAC support as needed.
  • Deploy major and minor software releases to all voice network nodes.
  • Assist operation staff in resolving customer trouble tickets and network issues that are outside of their troubleshooting scope.
  • Document network architecture and methods of procedures for regularly performed tasks.
  • Some overnight/weekend on-call requirement.
  • Some travel required for maintenance/deployment in regional co-location facilities.

Required Knowledge and Experience:

  • The ideal candidate with have skill and experience in some or all of the following areas:
  • Strong POSIX knowledge base (primarily Solaris and RHEL). Able to triage, diagnose and repair hardware and software faults.
  • Interoperability experience with the following protocols/technologies
  • SIP Trunking/Access
  • SIP CLASS 5 applications
  • SS7 ISUP & TCAP
  • SS7 TDM and SIGTRAN transport
  • VoIP CODEC transcoding

Working knowledge of TCP/IP protocol
Experience with scripting and automation (bash, expect, etc.)
Experience with Sonus NBS/GSX/PSX/SGX/STP
Experience with Genband C3/G9
Experience Empirix XMS
Experience with data router/switches – mainly Brocade/Cisco

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