Tier 3 Network Systems Subject Matter Expert
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Job Location:
Shiloh, OH - USA
Monthly Salary:
$ 112450 - 203275
Posted on:
30+ days ago
Vacancies:
1 Vacancy
Job Summary
Leidos is seeking an experienced Network Systems Subject Matter Expert (SME) to provide Tier 3 sustainment support to a mission critical IP voice transport network at Scott AFB IL. To be successful you should have extensive experience optimizing implementing and maintaining complex networks with a focus on security high availability and will also work closely with operations management and customer stakeholders to ensure the network is both secure and functioning optimally.
This position requires U.S. citizenship with an active Top Secret clearance with SCI eligibility.
Primary Responsibilities:
Provide system and network optimization design implementation testing and maintenance support for a complex enterprise network using industry best practices.
Resolve escalated network and security support issues (Tier 3).
Independently conduct network assessments identify possible vulnerabilities and recommend/develop solutions to problems found.
Lead development of network documentation diagrams and standard operating procedures. This includes creating and maintaining Engineering Implementation Plans (EIPs).
Support Continuous Service Improvements (CSI).
Active participation in Root Cause Analysis for Problem Management activities.
Work with cross-functional teams to plan and execute network upgrades migrations and deployments.
Manage vendor relationships including engagement on Incident Support activities and ensure timely delivery of program deliverables.
Monitoring capacity planning backup and recovery of network equipment
Keep up with technology trends. Evaluate and recommend new technologies tactics and tools to improve service delivery.
Mentor and coach junior engineers including providing training and support as required.
Provide testing support for the setup installation and transition to operations of service infrastructure devices NMS and tools.
Support administration patching configuration and sustainment activities for JITC lab components hosted at DISA Ft Meade.
Function as the primary COOP capability support engineer.
Review ACAS scanning and findings reports. Provide engineering support to the program ISSM/ISSO to mitigate findings.
Support lifecycle sustainment and refresh activities.
Utilize the designated ticketing system to document resolution and develop knowledge management artifacts.
Consult and collaborate with OEM resident and TAC engineering support provided by the government to ensure program operational and engineering needs are supported.
Core Qualifications:
Bachelors degree and 12-15 years of prior relevant experience or Masters with 10-13 years of prior relevant experience. Specific years of related work experience may be substituted for a degree at the Hiring Managers discretion.
Ability to work in a team environment with excellent communications and interpersonal skills.
Active DoD clearance at the Top-Secret level with SCI eligibility
Security Certification or other DOD 8570 IAT Level II Certification
Extensive knowledge of defense-in-depth principles Network and Security architecture network topology IT device integrity and common security elements.
10 years experience engineering and troubleshooting networks including extensive routing and switching experience such as one or more of the following: MPLS VPNs routing protocols i.e. BGP OSPF IS-IS switching protocols i.e. Spanning Tree Protocol VLANs LLDP VoIP Multicast protocols and emerging network technologies.
Strong understanding and in-depth knowledge of IP network/subnet addressing.
Experienced and adept at developing and maintaining technical documents analyses and reports.
Experience developing and presenting technical information to senior customer management customer stakeholders and company management.
Ability to travel up to 10% including OCONUS potential travel.
Preferred Qualifications:
Experience with Juniper route switch and security appliances. (MX EX SRX)
Experience with Session Initiation Protocol (SIP) implementation and design concepts.
Experience with Ribbon Session Border Controllers (SBC)
Experience with SolarWinds configuration and maintenance.
Experience with Splunk
Experience with change configuration and performance management NetOps concepts.
IAT Level III Certification (i.e. CISSP or equivalent).
At Leidos we dont want someone who fits the moldwe want someone who melts it down and builds something better. This is a role for the restless the over-caffeinated the ones who ask whats next before the dust settles on whats now.
If youre already scheming step 20 while everyone else is still debating step 2 good. Youll fit right in.
Original Posting:
August 21 2025For U.S. Positions: While subject to change based on business needs Leidos reasonably anticipates that this job requisition will remain open for at least 3 days with an anticipated close date of no earlier than 3 days after the original posting date as listed above.
Pay Range:
Pay Range $112450.00 - $203275.00The Leidos pay range for this job level is a general guideline onlyand not a guarantee of compensation or salary. Additional factors considered in extending an offer include (but are not limited to) responsibilities of the job education experience knowledge skills and abilities as well as internal equity alignment with market data applicable bargaining agreement (if any) or other law.
Key Skills
- Databases
- System Design
- Cybersecurity
- System Architecture
- Intelligence Experience
- Military Experience
- Requirements Gathering
- Joint Operations
- Curriculum Development
- DoD Experience
- FISMA
- Ant
About Company
Leidos is a Fortune 500® information technology, engineering, and science solutions and services 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 fo ... View more
