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Cisco Unified Communications Engineer

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NTT DATA

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Location:
Malaysia , Petaling Jaya

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Category:
IT - Administration

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Contract Type:
Not provided

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Salary:

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Job Description:

As a Cisco Unified Communications Engineer L3, you will design, deploy, and maintain Cisco Unified Communications systems, ensuring high availability and performance. The role requires a minimum of 7 years of hands-on experience with Cisco UC technologies and strong knowledge of VoIP protocols. A bachelor’s degree in a relevant field is required, along with preferred certifications like CCNP Collaboration. Join a collaborative culture at NTT DATA, a leader in technology services, and make a significant impact in the industry.

Job Responsibility:

  • Design, deploy, configure, and maintain Polycom, Cisco Unified Communications systems, including CUCM (Cisco Unified Communications Manager), Cisco Contract Center,Cisco Webex, and Voice Recording
  • Manage and support Cisco voice gateways, session border controllers (SBCs), and IP telephony endpoints (phones, video devices)
  • Implement and troubleshoot VoIP protocols: SIP, H.323, MGCP, SCCP
  • Monitor UC system performance, perform capacity planning, and maintain high availability
  • Perform software upgrades, patches, and backups of UC systems
  • Provide L2/L3 support for UC incidents, escalations, and change management
  • Integrate UC with other infrastructure (Active Directory, DNS, Certificates, Network)
  • Work closely with network, security, and operations teams to ensure QoS, redundancy, and security of voice traffic
  • Develop and maintain documentation: dial plans, call flow diagrams, run-books, and procedures
  • Provide training and support to users and junior engineers
  • Participate in UC-related projects: migrations, voice-data convergence, UC-cloud integration, etc.

Requirements:

  • Bachelor’s degree in Computer Science, Information Technology, Telecommunications, or equivalent work experience
  • Minimum 7 years of hands-on experience with Polycom, Cisco UC technologies (CUCM, UCCX, Webex, voice recording, etc.)
  • Strong knowledge of VoIP protocols: SIP, H.323, MGCP, SCCP
  • Experience with Cisco voice gateways, SBCs, and integrated dial-plan design
  • Solid understanding of networking (routing, switching) and how it applies to voice (QoS, VLAN, NAT)
  • Experience with clustering, redundancy, and fault tolerance in UC infrastructure
  • Proficiency in UC system monitoring and troubleshooting tools (e.g. RTMT, logs)
  • Good communication skills (English), documentation and planning abilities
  • Ability to work with cross-functional teams, escalate issues, and manage projects

Nice to have:

Certifications preferred: CCNP Collaboration or equivalent

Additional Information:

Job Posted:
February 16, 2026

Employment Type:
Fulltime
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