Senior Support Engineer (Unified Comms / Contact Center)

PERSOL SINGAPORE PTE. LTD.; Singapore; On-site; SGD 70,000 - 110,000; Full time

Job summary

PERSOL SINGAPORE PTE. LTD. in Singapore seeks an experienced Technical Support Senior Engineer (DTE) to provide dedicated Tier 2/3 support for enterprise banking clients. You will troubleshoot and maintain Avaya Unified Communications and Contact Centre environments, ensuring high availability and performance.

The role requires hands-on Avaya expertise, strong problem-solving skills, and the ability to communicate with customers and stakeholders in a fast-paced, customer-facing setting.

Qualifications

• Minimum 4 years of experience in Tier 2/3 UC and Contact Center engineering.
• Experience supporting Banking or Financial Services environments preferred.
• Proven ability to troubleshoot and resolve complex telephony issues.

Responsibilities

• Provide Tier 2/3 UC and CC support for enterprise customers.
• Troubleshoot and resolve complex telephony and contact center issues.
• Maintain Avaya UC & CC environments for mission-critical systems.
• Engage with customers and stakeholders to ensure high availability.
• Collaborate with cross-functional teams to implement fixes.

Skills

Avaya UC/CC

Tier 2/3 support

Troubleshooting

Linux

SIP/H.323

ACSS/ACIS

Banking domain

Tools

Avaya Aura CM

AAMS

CMS

ASBCE

Job description

Technical Support Senior Engineer (Avaya UC & Contact Centre)

Location:Singapore

Job Description

We are seeking an experiencedTechnical 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

• Minimum4 years of experiencein 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.