Senior Network & Voice Engineer – TS/SCI Cleared

CDW; Eglin Air Force Base (FL); On-site; USD 180,000 - 240,000; Full time

Job summary

CDW is seeking a Senior Network / Voice Engineer to support enterprise networks and voice systems in a secure federal environment. An active TS/SCI clearance is required and experience with VoIP, UC platforms, and voice equipment moves, adds, and changes is essential.

The role focuses on reliable day-to-day operations, troubleshooting, documentation, and coordination with network, telecom, cybersecurity, and mission stakeholders to ensure mission success.

Qualifications

• Active TS/SCI clearance required.
• U.S. citizenship required due to federal security requirements.
• Hands-on experience supporting enterprise network and voice in federal, defense, or secure environments.
• Experience performing voice moves, adds, changes, and deletions for IP phones and related services.
• Working knowledge of VoIP, SIP, QoS, dial plans, gateways, trunks, and UC platforms.
• Experience with Cisco UC Manager, Unity Connection, SBCs, routers and switches.
• Ability to use logs, packet captures, and monitoring tools for diagnostics.
• Secure configuration management and change control in a federal environment.
• Strong customer service and communication skills.

Responsibilities

• Perform moves, adds, changes, and deletions for voice equipment, user extensions, voicemail accounts, phones, call routing, hunt groups, shared lines, and related telephony services.
• Install, configure, maintain, and troubleshoot IP phones, analog voice devices, voice gateways, call managers, session border controllers, voicemail systems, and unified communications components.
• Support day-to-day voice operations, including provisioning, incident response, ticket resolution, user support, endpoint replacement, and coordination of voice service requests.
• Troubleshoot voice quality and connectivity issues, including one‑way audio, dropped calls, registration failures, latency, jitter, packet loss, codec mismatch, dial‑plan issues, and PSTN/SIP trunk problems.
• Support core network engineering tasks, including LAN/WAN connectivity, VLANs, routing, switching, firewall coordination, QoS, network segmentation, and secure network access.
• Implement and maintain QoS policies to prioritize voice traffic across LAN, WAN, and wireless environments.
• Coordinate with carriers, vendors, government customers, and internal technical teams to support circuit issues, number assignments, porting activity, trunk configuration, and service restoration.
• Create and maintain accurate documentation for voice infrastructure, phone inventories, extension assignments, dial plans, call flows, topology diagrams, standard operating procedures, and change records.
• Plan and execute approved network and voice changes through established change management processes while minimizing risk to mission operations.
• Support cybersecurity and compliance requirements by maintaining secure configurations, assisting with vulnerability remediation, supporting audit requests, and following federal security standards and operational procedures.
• Provide technical guidance to junior technicians or support staff for voice endpoint configuration, troubleshooting steps, and escalation procedures.

Skills

VoIP support

Networking

Troubleshooting

Communication

Security compliance

Team guidance

Education

Bachelor's degree in Computer Science / IT / related field

Tools

Cisco Unified Communications Manager

Cisco Unity Connection

Wireshark

SolarWinds

RTMT

SIP/VoIP tooling

Job description

CDW is seeking a Senior Network / Voice Engineer to support enterprise networks and voice systems in a secure federal environment. An active TS/SCI clearance is required and experience with VoIP, UC platforms, and voice equipment moves, adds, and changes is essential.

The role focuses on reliable day-to-day operations, troubleshooting, documentation, and coordination with network, telecom, cybersecurity, and mission stakeholders to ensure mission success.