Network Engineer
GS Lab & GAVS
10 - 12 years
Chennai
Posted: 07/03/2026
Job Description
Avaya L3 Operations Engineer
The Avaya L3 Operations Engineer will be responsible for advanced support and day- to-day operations of Avaya voice and contact center systems. This role handles complex issues escalated from L1/L2 teams, supports major upgrades and changes, and ensures stable and highly available enterprise voice services.
Key Responsibilities
Handle complex Avaya voice and contact center issues escalated from L1/L2 teams
Support and maintain Avaya Aura core systems (Communication Manager, Session Manager, Messaging)
Configure and support Avaya SBCs for secure remote access and SIP trunking
Provide advanced support for Avaya Contact Center platforms
Lead system upgrades, migrations, and major changes
Manage voicemail, messaging, and email integrations
Support PRI and SIP circuits and lead migrations to SIP
Work with Cisco teams to support Avaya–Cisco call integrations
Technical Skills & Expertise
Core Platforms - Avaya Aura CM (v10+), System Manager, Session Manager, AES, ESS, SBC, IX messaging, Breeze, workplace attendant, G430/G450/G650 Media Gateways.
Networking/SIP - Expert knowledge of SIP, H.323, ISDN PRI, and VoIP protocols. Mastery of QoS (Quality of Service) and Codecs (G.711, G.729).
Application Layer - Avaya Aura Messaging, AES (Application Enablement Services), CMS, and Avaya Breeze.
Tools - Wireshark, MST (Message Sequence Tracer), Nectar, or Prognosis for proactive monitoring.
Virtualization - Hands-on experience with VMware ESXi as it relates to Avaya OVA deployments.
Cisco Collaboration - Cisco CUCM, CUBE (Cisco Unified Border Element), and Unity Connection.
Required Qualifications:
Experience: 8+ years of hands-on experience in Avaya Voice/UC Engineering within an enterprise environment.
Certifications (Highly Preferred): * ACIS (Avaya Certified Integration Specialist)
o ACSS (Avaya Certified Support Specialist) in Aura Core Components or Contact Center.
Soft Skills: Strong incident management skills under high-pressure "Major Incident" (P1/P0) scenarios.
About Company
GS Lab and GAVS have merged to offer end-to-end digital transformation and IT services. Their combined expertise spans AI/ML, cloud modernization, infrastructure management, and cybersecurity. They serve clients in healthcare, BFSI, and enterprise IT.
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