Tier 3 Subject Matter Expert

1 month ago

Fort Meade, United States NSS Full time

NSS is seeking an experienced Subject Matter Expert (SME) to provide Tier 3 sustainment support to a mission critical IP voice transport network in Fort Meade, MD. The position requires extensive experience designing, implementing, and maintaining complex networks with a focus on security, high availability, and performance. The SME will work closely with operations, management, and customer stakeholders to ensure the network is both secure and functioning optimally.

Primary Responsibilities:

  • Provide design, implementation, testing, and maintenance support for a complex enterprise network using industry best practices.
  • Resolve escalated network and security support issues.
  • 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.
Core Qualifications:
  • Bachelor's degree and 8 - 12 years of prior relevant experience or Masters with 6 - 10 years of prior relevant experience. Specific years of related work experience may be substituted for a degree at the Hiring Manager's 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 Lvl II Certification within a certain timeframe after starting if not starting with one when hired.
  • 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 change, configuration and performance management NetOps concepts.
  • IAT Level III Certification (i.e. CISSP or equivalent).

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