We are seeking an experienced L3 Voice Engineer to provide advanced technical support for global voice and collaboration services for one of our sizeable Global Investment Banking clients.

Your new role

• Provide Level 3 technical support for enterprise voice infrastructure and services, including incident troubleshooting, service-request fulfilment, root-cause analysis, and escalation of complex issues.
• Maintain the stability, availability, capacity, and performance of end-user and back-office voice services in partnership with global Operations and Engineering teams.
• Support voice infrastructure projects, technology refresh initiatives, routine maintenance, patching, and platform upgrades.
• Manage, prioritise, and track operational activities through ServiceNow, ensuring timely resolution and compliance with agreed service levels.
• Participate in operational acceptance testing for new deployments and maintain accurate technical documentation, including voice environment configurations and change records.
• Contribute to scheduled support rotations, including weekend change execution and on-call support, to ensure continuous service operations.
  
  What you'll need to succeed
  
  
• 4+ years of experience supporting enterprise voice, unified communications, and collaboration environments.
• Hands-on experience with Cisco Unified Communications Manager (CUCM/UCM), including IP phones, Cisco Webex, Cisco Jabber, and mobile voice solutions.
• Solid understanding of voice protocols and technologies, including SIP, MGCP, ISDN, call routing, dial plans, and external PSTN provider services.
• Familiarity with enterprise voice and data networking concepts, including QoS, VLANs, gateways, SBCs, and session management.
• Exposure to platforms such as Cisco UCM and Webex, Avaya, Oracle SBC, or comparable voice technologies is highly desirable.
• Experience using ServiceNow or a similar ITSM/ticketing platform for incident, request, change, and problem management.
• Strong troubleshooting, analytical, communication, and customer-service skills, with the ability to work effectively across global teams and time zones.

What you need to do now

If you fulfil all the qualifications mentioned above and have the drive to succeed, click apply below!