Demo

Systems Engineer

NeoMax
Herndon, VA Full Time
POSTED ON 9/28/2026
AVAILABLE BEFORE 10/28/2026
Job Description

We are seeking an experienced Cisco Voice Engineer to join our team! This role focuses on designing, deploying, securing, and sustaining enterprise level Cisco Unified Communications solutions across a complex, highly secure environment. You should have a bachelor's or master's degree in Computer Science, IT, Engineering, or related field and a minimum of six (6) years of relevant Voice/UC engineering experience.

Required Skills

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 stand ups, 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

Strong technical expertise in:

o SIP signaling and call flows

o Secure Real Time Transport Protocol (SRTP)

o SIP, MGoogle Cloud Platform, H.323

o TCP/IP networking

o MPLS transport environments

o DNS and DHCP

o RTP media handling

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

Desired Skills

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:

o CCNP Collaboration

o CCIE Collaboration (highly desirable)

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 equivalent)

Salary.com Estimation for Systems Engineer in Herndon, VA
$93,580 to $111,509
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