Senior Lead Voice & UC Network Engineer

Infinite Computer Solutions

Campus (IL)

On-site

USD 120,000 - 180,000

Full time

20 hours ago

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Job summary

Infinite Computer Solutions is seeking a Senior Lead Voice Engineer to design, deploy, and optimize Cisco Unified Communications infrastructure, including CUCM, Unity Connection, UCCE, UCCX, and SBCs, across campus IT networks. The ideal candidate has 10–12 years of VoIP/UC experience, CCNA Voice/CCNP Collaboration, ITIL, and a strong command of QoS, SIP, and packet analysis using Wireshark and SolarWinds.

This on-site role requires strong English communication and ability to support 24/6

Qualifications

10–12 years of experience in VoIP/UC engineering.
Bachelor's degree in IT, CS, or telecommunications field.
CCNA Voice/CCNP Collaboration required.
Experience with Cisco UC Suite and SBCs.
Strong knowledge of QoS, SIP, and VoIP protocols.
Excellent English communication skills.

Responsibilities

Deploy and configure CUCM, Unity Connection, UCCE, UCCX, CUBE, and SIP trunking.
Implement voice gateways, dial plans, QoS policies, and SBCs.
Integrate Microsoft Teams, Zoom Phone, or other cloud telephony.
Troubleshoot and provide L2/L3 support for VoIP issues.
Resolve call routing, latency, jitter, and packet loss in VoIP networks.
Debug SIP/H.323/MGCP/RTP/RTCP with Wireshark and related tools.
Provide L3 escalation support for voice incidents and outages.
Monitor voice quality with SolarWinds, Cisco Prime, IR Prognosis.
Optimize QoS for voice traffic and plan capacity upgrades.
Ensure security measures (TLS, SRTP) and PCI/HIPAA compliance.
Collaborate with network, security, and cloud teams; maintain docs.
Provide 24/7 network and security support as required.