Senior Cisco VoIP & Network Security Analyst

County of Morris; Morristown (NJ); On-site; USD 75,000 - 81,000; Full time

Job summary

County of Morris is seeking a Systems Analyst / Cisco Telecommunications Engineer (OIT) to serve as the primary technical expert for our VoIP and CUCM environment. The role combines telecommunication administration with network and security troubleshooting across county sites.

You will manage SIP trunks, phones, and messaging integrations, while supporting Extreme Networks gear and Checkpoint security products to maintain high availability and secure communications for the organization.

Qualifications

• Proven administrative experience with Cisco Call Manager (CUCM) and SIP architectures.
• Strong networking fundamentals (VLANs, routing, TCP/IP) for diagnostics.
• Experience with Checkpoint security products and enterprise firewalls.

Responsibilities

• Administer, upgrade, and troubleshoot CUCM environment as core duties.
• Manage SIP trunks, voice gateways, dial plans, and unified messaging integrations.
• Provision user extensions and configure IP phones; support softphones.
• Resolve escalated voice, video, and UC issues; coordinate with carriers for outages or circuits.
• Monitor and optimize Cisco VoIP infrastructure and QoS for critical traffic.
• Maintain LAN/WAN/WLAN across county locations and document IP schema.

Skills

CUCM administration

SIP architecture

Troubleshooting

Wireshark analysis

Security operations

Non-technical communication

Tools

Extreme Networks devices

Checkpoint security

Wireshark

VPNs & IDS/IPS

VoIP phones

Job description

County of Morris is seeking a Systems Analyst / Cisco Telecommunications Engineer (OIT) to serve as the primary technical expert for our VoIP and CUCM environment. The role combines telecommunication administration with network and security troubleshooting across county sites.

You will manage SIP trunks, phones, and messaging integrations, while supporting Extreme Networks gear and Checkpoint security products to maintain high availability and secure communications for the organization.