Senior Platform Engineer (Architect)

Roles and Responsibilities

• Provide advanced L3/L4 engineering support across Cisco UC platforms (CUCM, Unity Connection, CER).
• Lead platform upgrades, migrations, and lifecycle management initiatives.
• Design and validate dial plan architecture, call routing logic, and redundancy models.
• Engineer and optimize Oracle SBC configurations and SIP trunk integrations.
• Support and validate Microsoft Teams Direct Routing integrations.
• Manage TLS/SRTP encryption and certificate lifecycle management.
• Implement and support SSO and identity integrations with enterprise authentication platforms.
• Support network‑level troubleshooting including QoS, RTP flows, and call quality diagnostics.
• Review and approve production‑impacting configuration changes.
• Ensure high availability and disaster recovery design validation.
• Collaborate with automation engineers to modernize operational workflows.