Unified Communications Operational Network Engineer

Unified Communications Operational Network Engineer

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MANTECH seeks a motivated, career and customer-oriented Unified Communications (UC) Operational Network Engineer to support our current GSMO-II contract supporting the Defense Information Systems Agency (DISA) critical global missions from Stuttgart, Germany . This UC/Voice Operational Engineer role provides sustainment, maintenance, problem and change management services to help ensure reliable, uninterrupted availability of the Department of Defense Information Network (DODIN) UC enterprise and service provider networks.

This is a funded position on a multiyear contract through July 2030. Relocation will be provided, and you will have access to all base privileges to include the military commissary and BX/PX. You will also receive HOLA/COLA allowances and have access to DoDDS Schools or international schools for all dependents.

Responsibilities

• Development of technical solutions that require collaboration with internal experts, deep analysis and understanding of impact on end-product/solutions.
• Implementation and troubleshooting of routing protocols (BGP, OSPF), telephony protocols (SIP, TLS, MGCP), and interoperability between various telephony systems and service provider networks.
• Configuration and troubleshooting of telephone devices and protocols including SIP, BGP, MGCP, H.323 and implementation of access control lists in different environments.
• Telephony Enterprise Call Routing and Conferencing.
• Identification and documentation of network errors and solutions. Analysis of network and telecommunications alarms to identify potential issues.
• Configuration, testing, installation, troubleshooting, and maintaining network devices and servers such as firewalls, cryptographic devices, routers, switches, SBCs, CUCMs, F5s, to optimize performance and ensure the desired security posture is attained and maintained.
• Configuration, testing, installation, troubleshooting, and maintaining VoIP network devices such as CUBES, SBCs, CUCMs, firewalls, cryptographic devices, and routers to optimize performance and ensure the desired security posture is attained and maintained.
• Providing high-level technical support for the design, implementation and integration of network changes and sustainment in support of enterprise service provider voice networks.

Minimum Qualifications

• Bachelor's degree in a relevant technical discipline and 4 plus years of overall related experience. (11+ years of additional related years of experience is accepted in lieu of a degree.)
• Must hold DoD-8570 IAT Level 2 or higher baseline certification (Security+ CE or CCNA Security, CISSP or equivalent)
• CCNA required (CNP or CCIE desired)
• Experience analyzing telephony call routing, setup, design, and architecture.
• Experience troubleshooting and configuring telephony VoIP networks.
• Experience with enterprise VoIP networks using multiple platforms (Cisco, Avaya, Oracle, Ribbon, or Raytheon).
• Ability to obtain Technical Expert Status Accreditation (TESA) in Germany.

Preferred Qualifications

• Comprehensive knowledge of VoIP network analysis, design principles, and enterprise Cisco Call Manager management; experienced in ensuring high availability and system reliability.
• Skilled in registering and troubleshooting endpoints, VTC devices, and Jabber clients; proficient in managing Cisco Presence (Jabber).
• Experienced in configuring, managing, and troubleshooting voice trunks, call routing, dial plans, route patterns, and translations.
• Knowledgeable in Cisco Unity, Meeting Server, and SBCs; certified with major network system vendors such as Cisco.
• Possesses extensive network integration experience across protocol standards; strong project management, communication, presentation, and problem-solving skills.

Clearance Requirement

• Must be a US Citizen with a current/active Secret clearance with the ability to obtain and maintain a Top Secret clearance.

Physical Requirement

• Sedentary work.

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