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).