Enterprise Voice Engineer II

Job Overview

Enterprise Voice Engineer position located in Scott AFB, IL, supporting DISA's Voice Services under Leidos Digital Modernization Sector/Global Solutions Management-Operations II (GSMO-II) contract. This role requires U.S. citizenship and an active TS/SCI clearance to start. The anticipated salary range is $80,000 to $90,000.

• Perform engineering tasks to maintain a large, complex, and highly resilient IP voice and video communications infrastructure.
• Manage, configure, troubleshoot and assure service supporting all aspects of a voice, video and data network. Must be organized, document‑oriented, possess diagramming skills and understand WAN principles.
• Perform system maintenance, capacity‑planning activities and complete configuration change actions and documentation.
• Configure and implement calling search spaces, route plans, route partitions, route lists and device profiles.
• Configure Cisco or Juniper routing and switching devices.
• Support distributed firewall infrastructure.
• Provide input in the development of technical policy, work instructions and reporting for the enterprise IP telephony network.
• Analyze and resolve complex technical problems utilizing foundational knowledge of SIP signaling and call flows.
• Analyze and resolve remote site registration, signaling and media problems.
• Validate change requests and ensure accuracy.
• Perform fault analysis and configuration of voice subscribers, call handlers and call routing rules, as well as Cisco and or Juniper routing and switching rules.

• Currently possess DoD 8750 certification at IAT level II, Security+ CE or equivalent to meet requirement.
• Experience with one or multiple Cisco, Avaya or Oracle voice platforms including Cisco Unified Communications Manager (CUCM), Cisco Unity, Cisco Unified Border Element (CUBE), Oracle Session Border Controller (SBC) and Avaya Aura Application Server.
• Expertise in SIP internetworking signaling and call flow.
• Demonstrable experience of advanced fault analysis to isolate and diagnose network problems for routing, switching, security and large‑scale voice implementations.
• Currently possess an active Secret security clearance.

• Working knowledge of Secure Real‑Time Transport Protocol (SRTP) including G.711, G.729 codecs and Digital Tone Multi Frequency (DTMF).
• Experience with Cisco Unified Communications Manager and or Avaya Aura soft switches.
• Experience with Oracle SBCs and other voice media gateway appliances.
• Experience supporting distributed firewall infrastructure.
• Experience creating/supporting IPSec MPLS VPN infrastructure.
• Experience implementing and supporting BGP routing protocols.
• Experience designing, configuring and troubleshooting QoS classification, marking and prioritization of network traffic (voice, critical applications, etc.).
• Familiarity with IPSec implementation and troubleshooting.

• BS degree and 2‑4 years of prior relevant experience or Master’s degree with less than 2 years of prior relevant experience (or equivalent combination of education and/or experience).

Pay Range
: $59,150.00 – $ (general guideline only, not guaranteed).

Commitment to Non‑Discrimination
All qualified applicants will receive consideration for employment without regard to sex, race, ethnicity, age, national origin, citizenship, religion, physical or mental disability, medical condition, genetic information, pregnancy, family structure, marital status, ancestry, domestic partner status, sexual orientation, gender identity or expression, veteran or military status, or any other basis prohibited by law. Leidos will also consider for employment qualified applicants with criminal histories consistent with relevant laws.