Senior VoIP Unified Communications Engineer

Job Title:

Senior VoIP / Unified Communications Engineer

Location:

New York, NY

Duration: 1 Month

We are seeking a seasoned Senior VoIP / Unified Communications Engineer to provide remote, ad-hoc professional services in support of a mixed Cisco CUCM and Webex Calling environment. This role is intended to augment and partner with our internal senior VoIP engineer and help execute planned initiatives and ongoing support activities, as overall internal resources are limited.

• Installation, configuration, and upgrade support for Cisco Unified Communications systems
• Advanced troubleshooting and root-cause analysis of VoIP and UC issues
• Design review, validation, and documentation of voice architectures
• Collaboration with internal engineering staff on audits, migrations, and upgrades
• Providing best-practice recommendations aligned with Cisco standards
• Upgrade Cisco CUCM from version 12.5 to 14 (CUCM 15 is not an option due to third-party application incompatibilities)
• Update Cisco systems to comply with new TLS authentication requirements
• Upgrade and validate the Informacast Paging system
• Conduct a Red Sky (E911) audit in collaboration with the internal senior engineer
• Conduct a Cisco CUBE routing audit in collaboration with the internal senior engineer
• Assist with the migration of the red phone environment to Cisco

• 10+ years of experience in VoIP / Unified Communications engineering
• Deep hands-on expertise with:
  Cisco CUCM, Webex Calling, Cisco CUBE, Red Sky (E911), Informacast Paging
• Strong understanding of SIP, TLS, certificates, and voice security
• Proven experience supporting enterprise-scale voice environments
• Ability to work independently and collaboratively in a remote consulting model

• Cisco Collaboration certifications (CCNP/CCIE Collaboration or equivalent experience)
• Prior experience performing system audits, upgrades, and migrations
• Strong documentation and knowledge-transfer skills