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Senior Cisco Voice Engineer
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VTG
Dulles, VA (In Person)
Full-Time
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Job Description
Senior Cisco Voice Engineer
Dulles, Virginia
Engineering
9200
Top Secret/SCI with Poly
Onsite
Job Description
Overview
We are seeking experienced Cisco Voice Engineers to support a mission critical, technology driven program for a key Government customer. This role focuses on designing, deploying, securing, and sustaining enterprise level Cisco Unified Communications solutions across a complex, highly secure environment.
What will you do?
- 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. Do you have what it takes?
- Must have a Top Secret Clearance with Polygraph
- Bachelor's or Master's degree in Computer Science, IT, Engineering, or related field
- Minimum of six (6) years of progressive experience in Voice/UC engineering
- Expert-level proficiency in SIP signaling and call flows
- Expert-level proficiency in Secure Real Time Transport Protocol (SRTP)
- Expert-level proficiency in SIP, MGCP, and H.323
- Expert-level proficiency in TCP/IP networking
- Expert-level proficiency in MPLS transport environments
- Expert-level proficiency in DNS and DHCP
- Expert-level proficiency in RTP media handling
- Demonstrated experience leading enterprise-scale voice deployments and modernization efforts
- Proven ability to troubleshoot complex, multi-layered call routing and signaling issues
- Strong communication skills for stakeholder engagement, documentation, and technical leadership
Preferred Education, Experience, & Skills:
- Expertise in SIP signaling, call flows, and multi-vendor integration
- Hands-on experience with H.323 in mixed protocol environments
- Cisco Certified Collaboration Professional (CCCP) or equivalent Cisco Collaboration certifications
- CCNP Collaboration certification
- CCIE Collaboration certification (highly desirable)
- Avaya Communications certification or experience supporting Avaya platforms in hybrid Cisco/Avaya environments
- Experience with secure communications devices such as VoIP endpoints, STEs, Viper phones, and encryption devices
- Familiarity with government security accreditation processes and PKI/certificate management
- Experience designing or supporting call center technologies (Cisco UCCX/UCCE or Avaya equivalents)
- Prior experience in a DoD, IC, or other high-security environment