Systems Engineer (Cisco Voice) -Expert

Cherokee Federal•Dulles, VA

4d•$175,000 - $190,000•Onsite

About The Position

This role involves working onsite to support security engineering and accreditation tasks, with a focus on Cisco Voice and Unified Communications within a large-scale enterprise IT environment. The Systems Engineer Expert will design, test, and deploy new Cisco Voice infrastructure, implement next-generation voice system technologies, and participate in security accreditation activities. Responsibilities include system upgrades, patching, lifecycle maintenance, and providing engineering support for new site standups. The position also requires designing, testing, and deploying call center technologies, executing tasks related to call routing, SIP trunking, SRST, and CUBE, and collaborating with customers and internal teams to refine system requirements. Ensuring compliance with enterprise standards and partnering with network engineering and telecom teams on integration activities are also key aspects of the role. The engineer will support secure communications devices and infrastructure and translate complex technical concepts into clear, security-compliant documentation.

Requirements

Bachelor’s or Master’s degree in Computer Science, IT, Engineering, or related field.
Minimum of eleven (11) years of relevant Voice/UC engineering experience
Strong technical expertise in: Experience supporting secure, enterprise scale voice environments
Ability to troubleshoot complex call routing, signaling, and interoperability issues
Strong communication skills for documentation, requirements analysis, and customer interaction
Advanced expertise in SIP signaling, call flows, and multi vendor integration
Experience with H.323 in mixed protocol environments
Cisco Certified Collaboration Professional (CCCP) or equivalent Cisco Collaboration certifications:
Avaya Communications Certification or experience supporting Avaya platforms in hybrid Cisco/Avaya environments
Experience with secure communications devices (VoIP endpoints, STEs, Viper phones, encryption devices)
Familiarity with government security accreditation processes and PKI/certificate management
Experience designing or supporting call center technologies (Cisco UCCX/UCCE or Avaya
Must pass pre-employment qualifications of Cherokee Federal
SIP signaling and call flows
Secure Real Time Transport Protocol (SRTP)
SIP, MGCP, H.323
TCP/IP networking
MPLS transport environments
DNS and DHCP
RTP media handling
CCNP Collaboration
CCIE Collaboration (highly desirable)

Nice To Haves

CCIE Collaboration (highly desirable)

Responsibilities

Work onsite to support security engineering and accreditation tasks.
Work with Cisco Gateways and understand Cisco VolP technology.
Design, test, and deploy new Cisco Voice infrastructure (CUCM, Unity Connection, IM&P, UCCX).
Implement next generation voice system technologies and support first article engineering.
Participate in security accreditation activities for all voice systems.
Manage PKI/certificate requirements across Cisco UC components.
Perform system upgrades, patching, and lifecycle maintenance for hardware and software.
Provide engineering support for new site standups, including dial plan design and endpoint provisioning.
Design, test, and deploy call center technologies (UCCX/UCCE), including user training and transition planning.
Execute tasks related to call routing, SIP trunking, SRST, CUBE, and gateway configuration.
Collaborate with customers and internal teams to gather and refine system requirements.
Ensure compliance with enterprise standards, policies, and security procedures.
Work within a large scale enterprise IT environment with responsibilities specific to Cisco Voice and Unified Communications.
Partner with network engineering and telecom teams on integration activities involving telephony, call center systems, and network infrastructure.
Support secure communications devices and infrastructure, including VoIP phones, STEs, Viper phones, encryption devices, POTs/ISDN/leased lines, conference bridges, and call management servers.
Bridge complex technical implementation concepts into clear, security-compliant language for documentation and briefings.
Performs other job-related duties as assigned