Enterprise Voice Engineer II - Tampa with Security Clearance

RMantra Solutions Inc.; Tampa (FL); On-site; USD 75,000 - 110,000; Full time

Job summary

RMantra Solutions Inc. is seeking a telecoms engineer to maintain a large, resilient IP voice/video network. You will configure and troubleshoot CUCM, Unity, CUBE, Oracle SBC, and Avaya Aura while ensuring security and policy compliance.

You will analyze SIP signaling and call flows to resolve complex issues, perform fault analysis on voice routes, and support capacity planning and firewall services across distributed sites.

Qualifications

• Requires BS degree and 2-4 years of prior relevant experience (or an equivalent combination).
• Active Secret security clearance is required (or ability to obtain).
• DoD 8750 IAT level II, Security+ CE or equivalent certification is required.

Responsibilities

• Maintain a large, complex IP telephony, voice, video and data network infrastructure.
• Configure and troubleshoot calling search spaces, route plans, and device profiles.
• Configure Cisco/Juniper routing and switching devices; support distributed firewall infrastructure.
• Develop and maintain technical policy, work instructions and reporting for the enterprise IP telephony network.
• Analyze SIP signaling and call-flow to resolve complex issues; perform fault analysis on voice subscribers and routing rules.
• Validate change requests and ensure accuracy; support capacity planning and configuration changes.
• Collaborate on QoS, SRTP usage and codec handling (G.711/G.729) as applicable.

Skills

SIP signaling

Fault analysis

Network troubleshooting

Documentation/diagramming

WAN principles

Security clearance

Education

BS degree in a related field

Masters degree (optional)

Tools

CUCM

Cisco Unity

CUBE

Oracle SBC

Avaya Aura

IPsec/MPLS VPN

Job description

Primary 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. 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.)