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By Light Professional IT Services · 1 month ago

Enterprise Voice Engineer II

Scott AFB, IL

Full-time

Onsite

Entry, Mid Level

2+ years exp

By Light Professional IT Services LLC readies warfighters and federal agencies with technology and systems engineered to connect, protect, and prepare individuals and teams for whatever comes next. The Enterprise Voice Engineer II will maintain a complex IP voice and video communications infrastructure, manage network configurations, and troubleshoot technical issues to support an enterprise IP telephony network.

GovernmentInformation ServicesInformation Technology

No H1B

Security Clearance Required

U.S. Citizen Only

Responsibilities

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

Qualification

IP voice communicationsCisco Unified Communications ManagerSIP signalingRoutingSwitchingDoD 8750 certificationAvaya voice platformsFault analysisSecure Real-Time Transport ProtocolBGP routing protocolsQoS classificationSoft skills

Required

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)

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

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

Currently possess an active Secret security clearance