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Sr. VoIP Engineer

Job in Littleton, Arapahoe County, Colorado, 80166, USA
Listing for: I2X/ISYS Technologies
Full Time position
Listed on 2026-10-09
Job specializations:
  • IT/Tech
    Systems Engineer, Cybersecurity, IT Specialist
Job Description & How to Apply Below
Minimum Clearance Required TS/SCI Responsibilities

We are seeking aSr. VoIP Engineer to support ongoing activities for a customer in Quantico, Virginia. This position will be onsiteand will require an active
* Top Secret Clearance with SCI eligibility. Performs tests, provisions, operations and emergency responses for voice network operations

Designs, configures, and installs VoIP hardware/software replacements and upgrades

Develops and maintains all VoIP documentation (drawings, cut sheets, configurations, and deployment plans)
Identifies and diagnoses problems and factors affecting voice services

Provides day-to-day subject matter expert support for RKB tenant agencies

Troubleshoots voice related issues and outages, which may occur during non-core hours

Works with vendors in support of the ITCSUPerforms preventative maintenance services on all devices within the VoIP area of responsibility

Maintains a current understanding of emerging technologies and trends in voice and video services

Performs other tasks as required by OSC and the Government contracting office

Qualifications

Must have and maintain a TOP SECRET clearance and must be eligible for a TS/SCIHigh School diploma or equivalent

Five (5) or more years of experience designing, building, and/or maintaining communications systems with a minimum of three (3) years of experience with CISCO Unified Communications Manager (CUCM) Version 12+ or newer

Cisco Certified Network Professional (CCNP) Collaboration or successful completion of the CLCOR exam Prior experience with Cisco Unity, Cisco Presences, Cisco Emergency Responder Knowledge of Cisco UCCXPrior experience with dynamic and static IPv4 routing and integrating with an external SIP provider

Proficient with SIP, SCCP, MGCP, DSN, PSTN, and H.323 systems and devices

Must be DoD 8570 certified at the IAT-II / IAM-II level. Please refer to the website: (Use the "Apply for this Job" box below). Experience and Skills Bachelor’s degree

Essential Requirements:

US Citizenship is required.

Please note that this role represents a direct-hire placement for a privately held company within our group of businesses.

Physical Demands:

The physical demands described here are representative of those that must be met by an employee to successfully perform the essential functions of this job with or without reasonable accommodation.

While performing the duties of this job, the employee will regularly sit, walk, stand and climb stairs and steps. May require walking long distance from parking to work station. Occasionally, movement that requires twisting at the neck and/or trunk more than the average person, squatting/ stooping/kneeling, reaching above the head, and forward motion will be required. The employee will continuously be required to repeat the same hand, arm, or finger motion many times.

Manual and finger dexterity are essential to this position. Specific vision abilities required by this job include close, distance, depth perception and telling differences among colors. The employee must be able to communicate through speech with clients and public. Hearing requirements include conversation in both quiet and noisy environments. Lifting may require floor to waist, waist to shoulder, or shoulder to overhead movement of up to 20 pounds.

This position demands tolerance for various levels of mental stress

Job Summary Job  Locations: US-CO-Littleton Min: USD $/Yr.Max: USD $/Yr.
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