Network VoIP Engineer

Day-to-Day Duties And Responsibilities

• Support implementation, maintenance, and lifecycle management of enterprise VoIP infrastructure.
• Perform advanced troubleshooting for Cisco Unified Communications Manager, Unity Connection, and Emergency Responder platforms.
• Configure and support SIP trunking and session border controller solutions including Cisco CUBE.
• Support disaster recovery planning, backup strategies, and network security implementation for voice services.
• Monitor performance, respond to vulnerabilities, and resolve operational incidents affecting telephony and unified communications services.
• Participate as subject matter expert in complex projects including solution design, risk assessment, and cross-team coordination.
• Develop and maintain technical documentation, runbooks, and internal training materials.
• Provide second-tier escalation support and mentor peer technical staff.
• Contribute to infrastructure improvements and process optimization initiatives.
• Support internal staff and multiple business locations to ensure voice services remain highly available, secure, and compliant with organizational standards.

What You Bring To The Team

• Bachelor’s degree in computer science, information technology, telecommunications, or related field.
• Minimum of three (3) years of experience with Cisco Unified Communications Manager, Unity Connection, and Emergency Responder version 12.x or higher.
• Advanced knowledge of dial plans, route patterns, and call routing design.
• Experience troubleshooting SIP and SCCP phone registration, including SRST.
• Experience configuring and troubleshooting inbound and outbound dial peers using Cisco CUBE.
• Voice gateway and multi-site deployment experience.
• Quality of Service design and implementation experience for voice traffic.
• Experience with SIP trunk activation and support across multiple carriers.
• Knowledge of Cisco routing, access-layer switching, and enterprise network integration.
• Ability to operate effectively in a 24x7x365 enterprise environment with high autonomy and technical judgment.

Preferred Requirements

• Experience with SD-WAN impact on VoIP and SIP traffic.
• Experience administering Cisco Meraki wireless environments and familiarity with Cisco Identity Services Engine.
• Experience with third-party Cisco UC tools such as Kurmi or Variphy and diagnostics tools such as Cisco RTMT.
• Experience with Cisco Expressway, hybrid calling, Webex Calling, Webex Contact Center, or Microsoft Teams Phone.
• Automation experience using Ansible, Python, or similar tools.
• Exposure to compliance requirements such as HIPAA, SOX, or PCI.
• Experience with non-Cisco session border controller platforms such as Ribbon or AudioCodes.