Senior Avaya UC & Contact Centre Engineer

PERSOL SINGAPORE PTE. LTD.Singaporemycareersfuturepublished 09/22/2026
Must-have:AIFinTechSenior

Technical Support Senior Engineer (Avaya UC & Contact Centre) Location:  Singapore Job Description We are seeking an experienced  Technical Support Senior Engineer (DTE)  to provide dedicated support for enterprise banking customers in Singapore. The successful candidate will be responsible for Tier 2/3 support, troubleshooting, and maintaining mission-critical Avaya Unified Communications and Contact Center environments. Requirements Experience Minimum  4 years of experience  in Tier 2/3 Unified Communications (UC) and Contact Center engineering.

Experience supporting Banking or Financial Services environments is preferred.

Proven ability to troubleshoot and resolve complex telephony and contact center issues.

Technical Skills Core Avaya Technologies Avaya Aura Platform: Communication Manager (CM)

Session Manager (SM)

System Manager (SMGR)

Avaya Aura Media Server (AAMS)

Avaya Aura Experience Portal (AAEP)

Avaya Call Management System (CMS)

Avaya Contact Center Elite (CC Elite)

Infrastructure & Protocols Avaya Session Border Controller for Enterprise (ASBCE)

SIP and H.323 protocols

VoIP diagnostics and troubleshooting

Linux Operating Systems

VMware virtualization

Certifications ACSS (Avaya Certified Support Specialist), ACIS (Avaya Certified Implementation Specialist), or equivalent telephony/UC certifications preferred.

Preferred Experience supporting large enterprise or Tier-1 banking environments.

Strong problem-solving, troubleshooting, and stakeholder communication skills.

Ability to work in a fast-paced, customer-facing support environment.

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  • Derrick Tiew Yong Han