Enterprise Voice Engineer II

RMantra Solutions; Northern (KY); Hybrid; USD 85,000 - 110,000; Full time

Job summary

RMantra Solutions in Kentucky is seeking an experienced IP telephony engineer to maintain a large, resilient voice and video infrastructure. You will configure Cisco/Juniper devices, troubleshoot networks, and document changes across WAN and data networks.

The role requires DoD 8750 IAT II or Security+ CE, and an active Secret clearance, with hands-on experience on CUCM, Cisco Unity, CUBE, and Oracle SBCs. A BS degree with 2–4 years of relevant work is expected.

Qualifications

• Requires DoD 8750 certification at IAT level II or Security+ CE or equivalent.
• Active Secret security clearance is required.
• Experience with Cisco, Avaya or Oracle voice platforms including CUCM, Unity, CUBE, SBC and Avaya Aura.
• Expertise in SIP signaling and call flows.
• Demonstrated advanced fault analysis to diagnose network problems for routing, switching, security and large-scale voice implementations.
• Familiarity with distributed firewall infrastructure.

Responsibilities

• Perform engineering tasks to maintain a large, complex, resilient IP voice/video communications infrastructure.
• Manage, configure, troubleshoot and support voice, video and data networks; document diagramming and WAN principles.
• Perform system maintenance, support capacity planning, and document configuration changes.
• Configure and implement calling search spaces, route plans, partitions and device profiles.
• Configure Cisco or Juniper routing and switching devices; support distributed firewall infrastructure.
• Analyze and resolve remote site registration, signaling and media problems.
• Validate change requests and ensure accuracy; perform fault analysis of voice subscribers and call routing rules.

Skills

SIP signaling

Fault analysis

Routing & switching

Network troubleshooting

Documentation

Diagramming

Security clearance

Education

BS degree

Masters

Tools

CUCM

Cisco Unity

CUBE

Oracle SBC

Avaya Aura

Job description

• 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 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.)

Join a dynamic team where your ideas matter and your career thrives.