Labcorp

Senior Voice Engineer

Labcorp

full-time

Posted on:

Location Type: Hybrid

Location: Burlington • North Carolina • United States

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Job Level

Senior

Tech Stack

CloudUnity

About the role

  • Design, implement, and maintain Cisco Unified Communications Manager (CUCM) clusters, dial plans, and call routing.
  • Configure and support Cisco ISR/ASR voice routers, VG series gateways, and CUBE for SIP, PRI, and analog integrations.
  • Manage and optimize SIP trunking, PSTN connectivity, and voice routing policies across enterprise environments.
  • Deploy, configure, and support Cisco Unity Connection for voicemail and messaging solutions.
  • Deploy and support Cisco Webex Calling and Webex App, including hybrid and cloud integrations.
  • Lead number porting projects, including coordination with carriers, validation of routing, and troubleshooting of porting issues.
  • Perform upgrades, migrations, and patching for CUCM, Unity, and Webex platforms.
  • Troubleshoot complex issues across CUCM, gateways, SIP trunks, and collaboration tools.
  • Collaborate with network, security, and collaboration teams to ensure seamless integration of voice services.
  • Document system architecture, configurations, and operational procedures.
  • Mentor junior engineers and provide technical leadership on voice projects.
  • Participate in vendor discussions, proof-of-concepts, and readiness assessments for new voice solutions.

Requirements

  • 5 or more years of enterprise voice engineering experience with Cisco UC solutions.
  • 3 or more years of experience with: CUCM (multi-cluster environments, dial plans, SRST, device pools).
  • Cisco ISR/ASR routers, VG gateways, and CUBE (SIP, H.323, MGCP).
  • Unity Connection (voicemail, integration with CUCM and Exchange).
  • Webex Calling and Webex App (cloud calling, hybrid deployments, user provisioning).
  • Number porting and carrier coordination (domestic and international).
  • Bachelor’s Degree in Computer Science, Information Technology, or a related field, or equivalent work experience.
  • CCNP Collaboration certification (preferred).
  • CCIE Collaboration certification (preferred).
Benefits
  • Medical, Dental, Vision, Life, STD/LTD
  • 401(k)
  • Paid Time Off (PTO) or Flexible Time Off (FTO)
  • Tuition Reimbursement
  • Employee Stock Purchase Plan
Applicant Tracking System Keywords

Tip: use these terms in your resume and cover letter to boost ATS matches.

Hard Skills & Tools
Cisco Unified Communications ManagerSIP trunkingPSTN connectivityCisco Unity ConnectionWebex CallingWebex Appnumber portingtroubleshootingvoice routing policiesvoice integrations
Soft Skills
technical leadershipmentoringcollaborationdocumentation
Certifications
CCNP CollaborationCCIE Collaboration