Senior Cisco Voice Engineer (TS/SCI) – Herndon

B4Corp; Herndon (VA); On-site; USD 212,000 - 259,000; Full time

Benefits offered by this job

PTO 7 weeks

401k plan

Phantom stock

Medical insurance

Dental insurance

Vision insurance

Life insurance

Disability insurance

Referral bonus

Job summary

B4Corp is seeking a Senior Systems Engineer specializing in Cisco Voice and UC for a government customer in Herndon, VA. The role focuses on design, deployment, security, and sustainment of enterprise Cisco UC solutions in a highly secure environment.

Requirements include TS/SCI with polygraph, 6+ years Voice/UC experience, and a strong background across CUCM, UCCX/UCCE, SRTP, SIP, and PKI management. Collaboration with multiple teams is essential.

Qualifications

• Bachelor’s or Master’s degree in Computer Science, IT, Engineering, or related field
• Minimum of six (6) years of relevant Voice/UC engineering experience
• Experience with Cisco Voice and UC systems in enterprise environments

Responsibilities

• 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

Skills

SIP signaling

SRTP

SIP

MGCP

H.323

TCP/IP

MPLS

DNS

DHCP

RTP handling

Call routing

Security accreditation

Education

Bachelor’s or Master’s degree in Computer Science, IT, Engineering, or related field

Tools

CUCM

Unity Connection

IM&P

UCCX

UCCE

Job description

B4Corp is seeking a Senior Systems Engineer specializing in Cisco Voice and UC for a government customer in Herndon, VA. The role focuses on design, deployment, security, and sustainment of enterprise Cisco UC solutions in a highly secure environment.

Requirements include TS/SCI with polygraph, 6+ years Voice/UC experience, and a strong background across CUCM, UCCX/UCCE, SRTP, SIP, and PKI management. Collaboration with multiple teams is essential.