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CACI International Unified Communications Engineer in Chantilly, Virginia

Unified Communications Engineer

Job Category: Information Technology

Time Type: Full time

Minimum Clearance Required to Start: Secret

Employee Type: Regular

Percentage of Travel Required: Up to 50%

Type of Travel: Continental US

What You’ll Get to Do:

CACI is seeking various levels of telecommunications/VOIP engineers to provide support for a Voice over IP (VOIP) modernization effort. You will provide expert telephony expertise with upgrading and replacing VOIP based telecommunication systems. You will be part of or will lead a team of engineers in the design, integration, and implementation of a VOIP solution at multiple locations. You will be integrating network solutions to include switches, routers, and voice gateways and work closely with other telecommunications/VOIP engineers, network security engineers, and various other groups within the program. This position will involve travel to remote CONUS sites to work independently with limited supervision on system upgrades and implementations. Must be able to keep up with fast pace fielding schedule.

More About the Role:

  • Installation and configuration of routers, switches, and VOIP infrastructure across multiple enterprise environments/client locations, both remotely and on-site

  • Participate in site surveys either independently or as part of a team to document current As-Is state (equipment, users, connected devices, power, back-up, etc.)

  • Ability to stay on schedule and able to work through any impediments encountered in the field

  • Perform advanced configurations on server infrastructures (mixed virtualized and physical environments)

  • Create and maintain detailed diagrams and technical documentation of enterprise voice networks

  • Expert knowledge of TCP/IP, LAN, MPLS and general network theory required

  • Able to trouble shoot and resolve complex problems

  • Provide timely and accurate status updates to customer contacts and management

  • Provide guidance/mentor more junior members of the team on VOIP technology

  • Partner and work with 3rd party teams and vendors

  • Lead device maintenance/firm ware updates/installation activities

You’ll Bring These Qualifications:

  • BA/BS and at least 10 years of related network engineering/IT experience. Experience in lieu of a degree is acceptable.

  • Cisco Unified Communications Manager

  • Familiarity with Avaya and Ribbon VoIP solutions

  • Familiarity and understanding of obtaining accreditation (ATO) for new VoIP implementation

  • Experience with replacing TDM solution with IP-based version

  • PSTN circuits (PRI, T1, SIP, analog, FXO, FXS)

  • Network Routing

  • Network Switching

  • Voice gateways and protocols


  • Active Secret clearance (required), Interim is acceptable

  • Willing and able to travel approximately 50% of the time

  • Cisco Unified Communications Manager (CUCM)

  • Certifications (must be 8570 compliant with a combination of the following):

  • CCIE

  • CCNP

  • Security + Server These Qualifications Would be Nice to Have:

  • Cisco Unity/Unity Connection/Unified Messaging

  • Cisco UC on UCS

  • VMWare 6.x

  • Cisco Telepresence

  • CCIE Collaboration

  • VMWare configuration experience

  • Windows Server administration experience

  • Network trouble shooting skills

  • Experience with other VOIP Equipment Manufactures (Avaya, Logitech, Valcom, Ribbon, etc.)`

  • SIP/AS-SIP experience

What We Can Offer You:

  • We’ve been named a Best Place to Work by the Washington Post.

  • Our employees value the flexibility at CACI that allows them to balance quality work and their personal lives.

  • We offer competitive benefits and learning and development opportunities.

  • We are mission-oriented and ever vigilant in aligning our solutions with the nation’s highest priorities.

  • For over 60 years, the principles of CACI’s unique, character-based culture have been the driving force behind our success.

Company Overview:

CACI 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, status as a protected veteran, or any other protected characteristic.

Pay Range : There are a host of factors that can influence final salary including, but not limited to, geographic location, Federal Government contract labor categories and contract wage rates, relevant prior work experience, specific skills and competencies, education, and certifications. Our employees value the flexibility at CACI that allows them to balance quality work and their personal lives. We offer competitive compensation, benefits and learning and development opportunities. Our broad and competitive mix of benefits options is designed to support and protect employees and their families. At CACI, you will receive comprehensive benefits such as; healthcare, wellness, financial, retirement, family support, continuing education, and time off benefits. Learn more here (

The proposed salary range for this position is:

$94,400 - $198,300