VoIP Network Engineer - DoD/C2 Specialist

CACI International Inc; Washington (District of Columbia); On-site; USD 104,000 - 218,000; Full time

Job summary

CACI International Inc is seeking an experienced VoIP Network Engineer / Telecommunications Engineer to support design, installation, operation and sustainment of a government agency’s Non-Secure VoIP network.

You will provide end-to-end engineering and operational support for enterprise voice, video, conferencing, and telecommunications services, with hands-on work on Cisco IP communications and C2 systems in a DoD setting.

Qualifications

• Demonstrated experience supporting VoIP, IP telecommunications, or enterprise voice communications environments.
• Hands-on experience with Cisco IP communications technologies.
• Experience supporting call-processing systems, gateways, IP telephones, voicemail, conferencing, and voice/video communications technologies.
• Knowledge of network monitoring, telecommunications infrastructure, cabling, and system availability practices.
• Experience troubleshooting complex telecommunications, network, hardware, and software issues.
• Knowledge of telecommunications security practices, including logging, monitoring, access controls, and rule-based policies.
• Experience developing and maintaining technical documentation, network diagrams, and operating procedures.
• Ability to support enterprise and geographically dispersed telecommunications environments.
• Working knowledge of DoD policies, procedures, and standards related to telecommunications and IP-based communications systems.

Responsibilities

• Design, install, configure, operate, maintain, and sustain Non-Secure VoIP networks and supporting telecommunications infrastructure.
• Provide systems engineering, technical oversight, documentation, troubleshooting, and lifecycle support for enterprise IP telecommunications services.
• Support specialized Command and Control (C2) communications systems, including conferencing, alert and notification systems, networked voice, video, data, and non‑secure switchboard services.
• Install, configure, administer, and maintain Cisco IP communications systems, call‑processing platforms, gateways, IP telephone instruments, voicemail systems, video applications, and voice/video bridging technologies.
• Provide voicemail capabilities including recorded announcements, message notifications, forwarding, distribution lists, message storage, automated dialing and reply functions, and remote message retrieval.
• Design and install telecommunications cabling, equipment, hardware, and software required to expand, modernize, or enhance existing network services.
• Monitor network status, performance, and alerting systems to maintain real‑time network availability, including remote applications and hardware supporting geographically dispersed locations.
• Provide end‑to‑end telecommunications connectivity, including equipment placement, infrastructure integration, endpoint installation, and connectivity within and external to customer environments.
• Configure and maintain telecommunications logging, monitoring, and blocking security services; review system logs and identify potential security or infrastructure improvements.
• Develop recommendations for telecommunications security, reliability, and infrastructure enhancements and coordinate implementation with designated customer personnel.
• Implement approved configuration changes, security controls, and rule‑based policies across telecommunications systems.
• Install, operate, and maintain Uninterruptible Power Supply (UPS) equipment supporting non‑redundant VoIP infrastructure to maintain service continuity during facility power disruptions.
• Apply knowledge of DoD telecommunications policies, procedures, security requirements, and technical standards when installing, configuring, administering, and maintaining Cisco IP systems.
• Provide real‑time conference scheduling, bridge management, troubleshooting, and connectivity support for global IP and ISDN teleconferencing environments.
• Troubleshoot voice, video, network, hardware, software, cabling, and telecommunications connectivity issues and coordinate resolution across technical teams as required.
• Maintain accurate system configurations, network diagrams, technical documentation, operational procedures, and infrastructure records.

Skills

VoIP

DoD environment

Security practices

Documentation

C2 communications

Tools

Cisco IP communications

Call-processing platforms

Gateways

Voicemail systems

Video applications

Bridging technologies

Job description

CACI International Inc is seeking an experienced VoIP Network Engineer / Telecommunications Engineer to support design, installation, operation and sustainment of a government agency’s Non-Secure VoIP network.

You will provide end-to-end engineering and operational support for enterprise voice, video, conferencing, and telecommunications services, with hands-on work on Cisco IP communications and C2 systems in a DoD setting.