Senior VoIP Engineer — TS/SCI Onsite (Quantico)

I2X Technologies; Littleton (CO); On-site; USD 120,000 - 170,000; Full time

Job summary

I2X Technologies is seeking a Sr. VoIP Engineer to support a customer at Quantico, VA. The role requires an active TS/SCI clearance and will be performed onsite. You will design, deploy, and maintain Cisco VoIP solutions, provide SME support to government agencies, and ensure reliable voice services across complex networks.

The ideal candidate has 5+ years in VOIP/UC, CUCM 12+, Cisco Unity/Presence/Emergency Responder experience, and DoD 8570 IAM-II/IAT-II certifications. US citizenship required.

Qualifications

• Five or more years designing, building, or maintaining communications systems.
• Three or more years with CUCM 12+ or newer.
• CCNP Collaboration or CLCOR certification.
• Experience with Cisco Unity, Cisco Presence, Cisco Emergency Responder.
• Knowledge of Cisco UCCX and SIP-based contact centers.
• Experience with IPv4 routing and external SIP providers.
• Proficient with SIP, SCCP, MGCP, DSN, PSTN, and H.323 systems.
• DoD 8570 IAT-II/IAM-II certification required.

Responsibilities

• Performs tests, provisions, operations and emergency responses for voice network operations.
• Designs, configures, and installs VoIP hardware/software upgrades.
• Maintains VoIP documentation (drawings, cut sheets, configurations, deployment plans).
• Identifies and diagnoses problems affecting voice services.
• Provides SME support for RKB tenant agencies.
• Troubleshoots voice issues/outages, including non-core hours.
• Works with vendors in support of the ITCSU.
• Performs preventative maintenance on VoIP devices.
• Keeps current with emerging voice/video technologies.
• Performs additional tasks as required by OSC and the Government contracting office.

Skills

SIP protocol

H.323

SCCP

VoIP engineering

IPv4 routing

Troubleshooting

Education

Bachelor's degree

High School diploma or equivalent

Tools

CUCM 12+ (Cisco Unified Communications Manager)

Cisco Unity

Cisco Presence

Cisco Emergency Responder

CCNP Collaboration

Job description

I2X Technologies is seeking a Sr. VoIP Engineer to support a customer at Quantico, VA. The role requires an active TS/SCI clearance and will be performed onsite. You will design, deploy, and maintain Cisco VoIP solutions, provide SME support to government agencies, and ensure reliable voice services across complex networks.

The ideal candidate has 5+ years in VOIP/UC, CUCM 12+, Cisco Unity/Presence/Emergency Responder experience, and DoD 8570 IAM-II/IAT-II certifications. US citizenship required.