Cisco Voice Engineer

Gazelle Global Consulting Ltd; Greater London; Hybrid; GBP 65,000 - 90,000; Full time

Job summary

Gazelle Global Consulting Ltd is seeking a Senior L3 Voice professional to own enterprise Cisco telephony, support the voice fit-out of a new London office tower, and oversee migrations and first-day operations. The role covers planning, installation, and ongoing telephony support across global voice infrastructure.

Based in a hybrid Glasgow, Scotland environment, you will resolve complex voice issues, lead L3 troubleshooting, coordinate with L1/L2 teams, contribute to governance, and produce

Qualifications

• Strong Cisco Voice SME background, including CUCM and contact centre.
• Experience with Cisco CUCM 12.x or later.
• Experience with IP endpoints, Cisco Jabber and Jabber Mobile.
• Experience with SIP, MGCP and ISDN.
• Experience in enterprise voice and data systems (5+ years).
• CCNP Collaboration (cert preferred).

Responsibilities

• Deliver installation and integration of voice and data hardware and cabling
• Oversee migrations and support day-one business operations
• Resolve complex voice issues through L3 troubleshooting, analysis and remediation
• Support L1 and L2 teams through incident escalations
• Manage incidents, problems and changes across global voice infrastructure
• Contribute to operational acceptance of new deployments
• Produce as-built technical documentation
• Communicate clearly with business units during projects and incidents
• Track work activities in ServiceNow
• Take part in vendor management and governance

Skills

Cisco Voice SME

CUCM expertise

Project management

L3 troubleshooting

Communication skills

Education

Bachelor's degree

Tools

Cisco UCCX

Avaya Session Manager

Job description

A senior L3 voice role with a global financial services organisation, combining day-to-day ownership of enterprise Cisco telephony with the voice fit-out of a new office tower build.

Contract: 12 monthsLocation: Glasgow, Scotland, UKWorking pattern: Hybrid, 2 days per week in the office

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The engagement covers the planning, coordination and installation of voice and data infrastructure for the construction and renovation of a new office tower in London. You will help plan installations, oversee migrations, support the first day of business operations and provide ongoing telephony support.

Alongside the build, you will support global voice infrastructure as the Level 3 escalation point. Weekend work is required during installation phases, typically Friday evenings and Saturdays.

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• Deliver installation and integration of voice and data hardware and cabling
• Oversee migrations and support day-one business operations
• Resolve complex voice issues through L3 troubleshooting, analysis and remediation
• Support L1 and L2 teams through incident escalations
• Manage incidents, problems and changes across global voice infrastructure
• Contribute to operational acceptance of new deployments
• Produce as-built technical documentation
• Communicate clearly with business units during projects and incidents
• Track work activities in ServiceNow
• Take part in vendor management and governance

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• Strong Cisco Voice SME background, including Cisco CUCM and contact centre
• Cisco Unified Call Manager (CUCM) 12.x or later
• IP endpoints, Cisco Jabber and Jabber Mobile
• MRA
• SIP, MGCP and ISDN
• Packetised voice, session management and call routing
• Five or more years with enterprise voice and data systems
• CCNP Collaboration-level knowledge (certification preferred, not required)
• Experience of branch office construction, renovation, relocation or corporate real estate projects
• Organised and self-motivated, able to manage multiple projects under pressure

• Cisco UCCX
• Avaya Session Manager
• IPC and Private Wires
• Bachelor's degree

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UK right-to-work candidates only, including eligible dependant visa holders and those with ILR. Unfortunately, visa sponsorship or Skilled Worker visa support is not available.

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