Enterprise Voice Engineer

LightGrid is looking for an Enterprise Voice Engineer to work at Scott AFB, IL. Active TS/SCI Clearance is required.   

Primary Responsibilities:
Responsible for performing the following duties:

• Perform      engineering tasks to maintain a large, complex and highly resilient IP      voice and video communications infrastructure.
• Manage,      configure, troubleshoot and assure service supporting all aspects of a      voice, video and data network. Must be organized, document oriented,      possess skills in diagramming, and understand WAN principals.
• Perform      system maintenance, support capacity planning activities and complete      configuration change actions and documentation efforts.
• Configure      and implement calling search spaces, route plans, route partitions, route      lists and device profiles.
• Configure      Cisco or Juniper routing and switching devices.
• Support      distributed firewall infrastructure.
• Provide      input in the development of technical policy, work instructions and      reporting in support of an enterprise IP telephony network.
• Analyze      and resolve complex technical problems utilizing foundational knowledge of      SIP signaling and call-flows.
• Analyze      and resolve remote site registration, signaling and media problems.
• Configure      route plans, route lists, device profiles, calling search spaces, and      route partitions. 
• Validate      change requests and ensure accuracy.
• Perform      fault analysis and configuration of voice subscribers, call handlers and      call routing rules.
• Perform      fault analysis and configuration of Cisco and or Juniper routing and      switching rules.

Basic Qualifications:

• Currently      possess DoD 8750 certification at IAT level II, Security+ CE or equivalent      to meet requirement.
• Experience      with one or multiple Cisco, Avaya or Oracle voice platforms including      Cisco Unified Communications Manager (CUCM), Cisco Unity, Cisco Unified      Border Element (CUBE), Oracle Session Border Controller (SBC) and Avaya      Aura Application Server.
• Expertise      in SIP internetworking signaling and call flow.
• Demonstrable      experience of advanced fault analysis to isolate and diagnose network      problems for routing, switching, security and large scale voice      implementations.
• Currently      possess an active Secret security clearance.

Preferred Qualifications:

• Working      knowledge of Secure Real-Time Transport Protocol (SRTP) including      associated G.711 and G.729 codecs and Digital Tone Multi Frequency (DTMF).
• Experience      with Cisco Unified Communications Manager and or Avaya Aura soft switches.
• Experience      with Oracle SBCs and other voice media gateway appliances.
• Experience      supporting distributed firewall infrastructure.
• Experience      creating/supporting IPSec MPLS VPN infrastructure 
• Experience      implementing and supporting BGP routing protocols 
• Experience      designing, configuring and troubleshooting QoS classification, marking and      prioritization of network traffic (voice, critical applications, etc.).
• Familiarity      with IPSec implementation and troubleshooting.

 Required Education and Experience:

• Requires      BS degree and 2-4 years of prior relevant experience or Masters with less      than 2 years of prior relevant experience.  (Or equivalent      combination of education and/or experience.)