Lead Consultant (Unified Communications)

Singtel; Singapore; On-site; Confidential; Full time

Job summary

Singtel is seeking an experienced Network Infrastructure Support professional to provide 24x7 standby support for cloud-based infrastructure, ensuring high availability and performance through proactive monitoring and maintenance. You will handle Level 2/3 incidents with thorough root-cause analysis and end-to-end resolution.

Responsibilities include CR/MACD for vSBC and network components, hardware/firmware upgrades and security remediation; collaborate with vendors for platform upgrades,

Qualifications

• :Degree in Engineering, Telecommunication or IT.
• 5+ years in Telecommunication / Network Infrastructure Support.
• Ribbon SBC certifications.
• Contact Center certifications.
• CCNA certification.

Responsibilities

• Provide 24x7 standby support for cloud-based infrastructure with proactive monitoring and maintenance.
• Manage Level 2/3 incidents including high-severity escalations, root cause analysis, and end-to-end resolution.
• Execute CR/MACD for vSBC and network components, including hardware/firmware upgrades and security remediation.
• Collaborate with vendors and ecosystem partners on platform upgrades, patches, and VAPT activities; deliver monthly service reports.
• Monitor and maintain infrastructure to ensure optimal performance and availability.
• Manage escalations and track incidents through to closure.
• Coordinate hardware/firmware upgrades and security remediation with vendors.

Skills

Troubleshooting

Root cause analysis

Incident management

Team collaboration

Education

Engineering/Telecommunication/IT degree

Tools

Router

Switches

Firewall

Job description

Make an impact by:

Provide 24x7 standby support, ensuring high availability and performance of cloud-based infrastructure through proactive monitoring and maintenance. Manage Level 2/3 incidents, including high‑severity escalations, root cause analysis, and end‑to‑end incident resolution. Execute configuration, problem, and change management (CR/MACD) for vSBC and network components, including hardware/firmware upgrades and security remediation. Collaborate with vendors and ecosystem partners on platform upgrades, patches, VAPT activities, and escalations, while delivering monthly service reports to drive continuous improvement.

• Strong investigative, problem‑solving skills - ability to identify problems and provide solutions in Router, Switches, Firewall


• Perform regular monitoring and maintenance of the cloud‑based infrastructure to ensure optimal performance and availability


• Manage and mitigate escalations of high impact system failures and assist in tracking the incidents till closure.


• Hardware/Firmware upgrade/update due to bugs/vulnerabilities


• Manage & support yearly VAPT


• Work with Ecosystem partners for platform upgrade or patches


• Analyse all incidents logged and advise/recommend short term/long term fix


• Good Team player


• Manage 3rd party vendors/partners for the delivery and installation of hardware.

Skills for Success:

• Degree in Engineering, Telecommunication, IT discipline


• Preferably with at least 5 years’ experience in Telecommunication / Network Infrastructure Support


• Professional certifications in Ribbon SBC


• Professional certifications in Contact Center


• CCNA