VoIP Engineer (CUCM/Avaya) - TS/SCI w/ Poly

Clearance Level
Top Secret SCI + Polygraph
Systems Engineering
Chantilly, Virginia

REQ#: RQ74720

Travel Required: None
Requisition Type: Regular

Seeking an individual to fill a position as the VoIP engineer supporting design, configuration, and operations and maintenance of a mission critical collaboration IT infrastructure that supports voice and video services. Telecommunications infrastructure includes Cisco Call Manager, Polycom and Avaya Communications Manager. Position will be at an overseas location providing support during core business hours with assistance to remote customers as required.


  • Troubleshoot and configure Cisco Unified Communications Manager (CUCM) equipment
  • Provide support to Users Globally utilizing Cisco Call Manager 12.5, Cisco Unity 12.5, Avaya CM 7.0
  • Manage and Maintain Analog fax lines, Voicemails, Auto Attendants, Phone setup, and Alarms/Alerts
  • Provision and Support Existing infrastructure of Cisco and Avaya Voice system
  • Update and close tickets. Documentation on tickets and track issues to completion
  • Provision of phone and user profiles, speed dials, name changes with CUCM, and voicemail on Unity Connection
  • Review and validate understanding of customer design requirements as well as recommend process changes
  • Manage day-to-day client and internal service requests and document all services performed
  • Maintain support documentation including support guides, knowledge base articles, procedures, and online customer information
  • Ability to complete complex projects and installations successfully within aggressive time frames and budget
  • Installation, configure and testing of VoIP stations (Jabber Client) on user desktops off of the Cisco CUCM
  • Analyze Problems with Telephony and Data Network equipment
  • Program of the IP telephones (Cisco IP 88XX, 7965, 7971, DX80, SX80 Room Kit, Avaya 9621, 9641) and connectivity to LAN network
  • Participate in projects ranging from expansion of a single line card or trunk
  • Analyze the current telephone and network infrastructure and identify gaps that would prevent the successful migration from the legacy voice system to a VoIP centric system
  • Perform telecommunications services for conferences and special events
  • Validate and coordinate all scheduled maintenance
  • Provide advice and technical guidance to installation systems personnel on automated data telecommunications systems, equipment procedures, and techniques


  • BA/BS (or equivalent experience)
  • Five (5) years or more demonstrated experience with Cisco CUCM and/or Avaya Communication Manager
  • COMPTIA Security Plus Certified
  • Proficiency with Microsoft Office Suite (Word, Excel, Power Point, and Visio)
  • Experience working in a mission critical environment in which requirements vary from day-to-day
  • Demonstrate experience authoring standard operating procedures
  • Demonstrate experience working in a complex sustainment and maintenance environment comprised of heterogeneous information systems and technologies
  • Knowledge of ICD-503 standards and requirements for system accreditation
  • COMPTIA Security Plus Certified

#SEAIHS #ExternalReferral

We are GDIT. The people supporting some of the most complex government, defense, and intelligence projects across the country. We deliver. Bringing the expertise needed to understand and advance critical missions. We transform. Shifting the ways clients invest in, integrate, and innovate technology solutions. We ensure today is safe and tomorrow is smarter. We are there. On the ground, beside our clients, in the lab, and everywhere in between. Offering the technology transformations, strategy, and mission services needed to get the job done.

GDIT is an Equal Opportunity/Affirmative Action employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability, or veteran status, or any other protected class.