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TAT IT Technolgies

Senior Network Engineer (Voice, Contact Center & Cloud)

TAT IT Technolgies
United Arab Emirates · Contract · Mid-Senior
Urgent requirement for Senior Network Engineer (Voice, Contact Center & Cloud) is required for our insurance client in Abu Dhabi ,UAE

Cisco Collaboration (CUCM/UCCX) and enterprise voice, with strong Microsoft Teams Phone, Azure networking, and VMware vSphere skills.--Must

Hands-on CUCM, UCCX (CUIC/Finesse), Unity, SRST, QoS for real-time media; SIP/MGCP/H.323 fundamentals.--Must

Teams Phone: Direct Routing/Operator Connect, dial plans/voice routing, CQD; SBC administration experience.---Must

Immediate joiners only required --Must

Insurance Domian --Preffered

Overview

Seeking a Senior Network Engineer focused on Cisco Collaboration (CUCM/UCCX) and enterprise voice, with strong Microsoft Teams Phone, Azure networking, and VMware vSphere skills. Owns operations, complex incident resolution, changes, configuration &

backup management, and continuous improvement across on-prem and cloud.

Key Responsibilities

  • CUCM/Call Manager: Globalized dial plan (E.164), partitions/CSS, route patterns/lists/groups, device pools/regions, media resources, LDAP/SSO, certs, DRS backups.
  • UCCX: Call-flow scripting, prompts, queues/skills, Finesse, CUIC reporting/wallboards; version-controlled exports/backups of scripts & prompts.
  • Unity Connection: Call handlers, routing rules, mailbox policies, MWI; DRS backup/restore validation.
  • Voice gateways/SBCs: Cisco IOS/CUBE (SIP/MGCP/H.323), SRST, PSTN/SIP trunking, numbering/translation; change-controlled config backups.
  • Microsoft Teams Phone: Direct Routing/Operator Connect, dial plans & voice routing, E911, call queues/auto attendants, SBA; CQD diagnostics.
  • SBC admin (AudioCodes/Ribbon/CUBE as SBC): TLS/SRTP, certs, number porting; archive configs/firmware; documented routing policies.
  • Billing & Recording: Imagicle billing (tariffs/chargeback, usage reports); Calabrio recording/QM/WFM (policies, retention/encryption, audits) with tested backups/restores.
  • Azure networking: VNets, NSGs/ASGs, UDRs, VPN Gateway, ExpressRoute, Azure Firewall, Application Gateway (WAF), Load Balancer, Private Link/Endpoints; Network Watcher; baseline export/IaC where feasible.
  • VMware vSphere: vCenter/ESXi, VM lifecycle, vMotion/HA/DRS; patching with vLCM; vCenter/host-profile backups.
  • Operational excellence: ITIL change/incident/problem, RCAs, CMDB/HLD/LLD/runbooks, nightly automated configuration backups

(NCCM/Oxidized/RANCID) with periodic restore drills; vendor/carrier management; on-call.

Required Qualifications

  • 8–12 years in enterprise voice/UC & network ops across multi-site environments.
  • Hands-on CUCM, UCCX (CUIC/Finesse), Unity, SRST, QoS for real-time media; SIP/MGCP/H.323 fundamentals.
  • Teams Phone: Direct Routing/Operator Connect, dial plans/voice routing, CQD; SBC administration experience.
  • Azure networking: VNets, NSGs, UDRs, VPN/ExpressRoute, App Gateway/WAF, Load Balancer, Private Link/Endpoints.
  • VMware: vSphere/ESXi, vCenter, vMotion/HA/DRS; vLCM patching workflows.
  • Configuration & backups: Proven operation of automated device/UC backups, retention/encryption, and successful restore testing.
  • Strong troubleshooting (SIP ladders/PCAP, SBC traces, QoS/jitter/loss) and clear documentation skills.
  • ITIL familiarity (Change/Incident/Problem); solid stakeholder and vendor management.
  • Preferred / Certifications
  • CCNP Collaboration (preferred), CCNA (required).
  • Microsoft 365 Certified: Teams Voice Engineer Associate.
  • Azure Administrator or Network Engineer Associate.
  • VMware VCP-DCV.
  • ITIL Foundation.

Skills: voice,cisco,azure,networking

Key Skills

Ranked by relevance

vmware vsphere unity itil firewall vcenter cloud ccna ccnp vpn vm
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Country Guide

United Arab Emirates

Tax-friendly regional tech hub

Posted
Nov 22, 2025
Type
Contract
Level
Mid-Senior
Location
Abu Dhabi
Company
TAT IT Technolgies

Industries

Technology Information Internet

Categories

Information Technology

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