Leidos Cisco Voice Engineer at Scott AFB, IL in SCOTT AIR FORCE BASE, Illinois


Global Information Grid (GIG) Service Management-Operations (GSM-O), a Defense and Intelligence Group of Leidos has an opening for a Cisco Voice Engineer. Our customer is the Defense Information Systems Agency (DISA) located at Scott AFB, IL and acts as the provider of GIG/Defense Information System Network (DISN) services to the department of Defense (DoD) and national security organizations.

Principle Responsibilities:

•Design, manage, and maintain a large, complex and highly resilient Infrastructure.

•Experience with Cisco Voice platforms, Call Manager, Unity, VOIP gateway, SIP, PRI’s, Dialing plans, and Cisco Unified Boundary Element (CUBE).

•Troubleshoot all aspects of the Cisco Voice and Data network, must be organized, document oriented, possess skills in Visio diagramming, and understand WAN principals.

Additional Duties and Responsibilities:

•Design, configure and troubleshoot QoS classification, marking and prioritization of network traffic (voice, critical applications, etc.).

•Configure route plans, route lists, device profiles, calling search spaces, and partitions.

•Troubleshoot and configure Cisco Unity Connection features, subscribers, call handlers and call routing rules.

•Troubleshoot and configure Cisco routing and switching rules.

•Support distributed Firewall infrastructure.

•Create/Support IPSec MPLS VPN infrastructure

•Implement and support BGP routing protocols

External Referral Eligible



•Bachelor's degree in a relevant technical discipline and 8+ years overall IT experience to include 3+ years of experience in operating and maintaining VoIP technologies. 4+ years of additional related years of experience is accepted in lieu of a degree.

•Excellent knowledge of SIP signaling and call-flows.

•Experience in SIP internetworking

•Excellent working knowledge of Secure Real-Time Transport Protocol (SRTP) including G.711 and G.729 codecs, and Digital Tone Multi Frequency (DTMF).

•Experience with Oracle SBCs and Cisco CUBEs

•Familiarity with IPSec implementation and troubleshooting.

•Demonstrable experience of advanced troubleshooting to isolate and diagnose network problems for routing, switching, security and large scale voice implementations.

•DoD 8570 IAT II (Security+)

•Currently possess an active Secret security clearance.


Leidos Overview:

Leidos is a global science and technology solutions leader working to solve the world’s toughest challenges in the defense, intelligence, homeland security, civil, and health markets. The company’s 33,000 employees support vital missions for government and commercial customers. Headquartered in Reston, Virginia, Leidos reported pro forma annual revenues of approximately $10 billion for the fiscal year ended January 1, 2016 after giving effect to the recently completed combination of Leidos with Lockheed Martin's Information Systems & Global Solutions business (IS&GS). For more information, visit www.Leidos.com. The company’s diverse employees support vital missions for government and commercial customers. Qualified women, minorities, individuals with disabilities and protected veterans are encouraged to apply. Leidos will consider qualified applicants with criminal histories for employment in accordance with relevant Laws. Leidos is an Equal Opportunity Employer.