Voice Network Engineer

Abacus Technology; Belleville (IL); On-site; USD 110,000 - 160,000; Full time

Job summary

Abacus Technology seeks a Voice Network Engineer to support enterprise VoIP networks at Scott AFB. You will provide tier 3 engineering and hands-on Cisco CUCM/Unity configuration, including SIP, SBCs, and teleconference bridges.

Required are 5+ years in VoIP engineering, a related Bachelor's degree, and CCNP Collaboration certification. U.S. citizenship and TS clearance are mandatory for this role.

Qualifications

• 5+ years of experience in a VoIP or telecommunications engineering role.
• Bachelor's degree in a related field.
• CCNP Collaborations certification required.
• Hands-on experience with physical network infrastructure (switches, routers).
• Experience with Cisco tools and technologies including CUCM and Unity.

Responsibilities

• Provide tier 3 engineering and support for voice and communications networks.
• Configure, develop, patch, STIG, enhance, and add features to Cisco VoIP system to include Call Manager, Cisco Unity, Ribbon VX900 devices, Instant Message and Presence and Teleconference Bridges.
• Develop configurations and methods for Cisco Unified Border Elements, Session Border Controllers, and other network devices that use SIP to connect system to external voice systems.
• Develop configurations for SIP connections between the VoIP network and other customer networks including Asterisk networks, Call Manager Express, SRST, and other Cisco VoIP networks.

Skills

VoIP engineering

Telecommunications

Cisco tools

CUCM

Cisco Unity

Session Border Controllers

SIP configurations

Education

Bachelor's degree in a related field

Tools

CUCM

Cisco Unity

Session Border Controllers

Call Manager Express

Asterisk

SRST

Job description

Voice Network Engineer

Job Locations: US-IL-Belleville

Overview

Abacus Technology is seeking a Voice Network Engineer to provide infrastructure support of communications networks for an enterprise program at Scott AFB. This is a full-time position.

Responsibilities

• Provide tier 3 engineering and support for voice and communications networks.
• Configure, develop, patch, STIG, enhance, and add features to Cisco VoIP system to include Call Manager, Cisco Unity, Ribbon VX900 devices, Instant Message and Presence and Teleconference Bridges.
• Develop configurations and methods for Cisco Unified Border Elements, Session Border Controllers, and other network devices that use Session Initiated Protocol (SIP) to connect system to external voice systems.
• Develop configurations for SIP connections between the VoIP network and other customer networks including Asterik networks, Call Manager Express, SRST, and other Cisco VoIP networks.

Qualifications

5+ years experience in a VoIP or telecommunications engineering role. Bachelor's degree in a related field. Must be CCNP Collaborations certified. Hands‑on experience with physical network infrastructure (switches, routers). Extensive experience with Cisco tools and technologies including Cisco Unified Call Manager (CUCM) and Unity. Experience with network implementation and maintenance. Able to demonstrate flexibility in adjusting to variable workload and job duties. Able to interact professionally with all levels of an organization. Must be a US citizen and hold a current Top Secret clearance.

Applicants selected will be subject to a U.S. government security investigation and must meet eligibility requirements for access to classified information.

EOE/M/F/Vet/Disabled