Senior Network Infrastructure SME

Description

Position Summary 

The Senior Network Infrastructure SME is a senior level technical authority for enterprise network architecture, modernization, and security across DoD mission environments (IL4/5/6) on the Integrated Research and Development for Enterprise Solutions (IRES) contract. This role leads end to end design for data center, campus/branch, WAN/SD WAN, and cloud connectivity; and drives Zero Trust–aligned segmentation and automation to deliver resilient, scalable, and compliant networks.

Essential Duties and Responsibilities

• Provide subject matter expertise to a team of high-performing network engineers
• Work directly with Team Leads, Project Managers, Network Engineers, and Network Architect for coordination of routine maintenance, break/fix repair, and planned changes; coordinating any down time with all appropriate leadership and stakeholders
• Generates network design guidance in coordination with architects, SMEs, and system engineers; along with the installation/deployment, configuration, testing, compliance enforcement, and reporting on all assets.
• Support discrete project proposals and responses to Request for Services (RFS) by providing best estimates of timelines, costs, etc. as required
• Perform end-user support to internal teammates and tenants, including but not limited to Layer 1-3 troubleshooting, physical fault isolation and cabling, etc.
• Develop, track, revise, and monitor policies and standards for allocation related to the use of IT and computing resources as well as assure and sustain the integrity and security of network infrastructure
• Provide advice and training to end-users, and guide and inform senior leadership.
• Use approved work tracking tools (Remedy) for all approved changes on baselined systems
• Update documentation (network diagrams, rack diagrams, etc.) utilizing approved work vehicles and the change management process, and submit to Architect/SME/System Engineer for approvals
• Perform hardening and STIG checklist validation/verification for associated network infrastructure and virtual machines
• Research outages, implementation failures/impediments, and other issues, guiding resolutions and briefing stakeholders of statuses and updates
• Provide standardization of design and implementation documentation, instructions, and improvements to existing processes/procedures
• Review documentation ensuring engineering rigor and quality, maintaining responsibility for projects and tasks assigned to the team
• Maintain written documentation of incidents and escalate issues to the appropriate level of support as required by documented policies and procedures
• Provide mentorship and training to junior/mid network engineers and interns/fellows to ensure their participation in experience-gathering day-to-day activities, and review work products and efforts during their development

Minimum Qualifications (Knowledge, Skills, and Abilities)

• Must have a current DoD 8570 IAT Level III or IAM Level II baseline certification (examples: CISSP, CASP+ CE, CISM).
• Must have an active DoD Secret Security Clearance
• Must have 10, or more, years designing and leading large-scale enterprise or DoD networks across data center, WAN/backbone, campus/branch domains.
• Must have expert level knowledge of routing and switching (BGP, OSPF, IS IS), EVPN VXLAN and/or MPLS, QoS, IPv6, multicast, and network resiliency patterns.
• Must have demonstrated success implementing Zero Trust segmentation, 802.1X/NAC, identity aware firewall policy, and FIPS validated cryptography.
• Must be familiar with hybrid/multi cloud networking patterns and IL4/5/6 operational constraints; strong grasp of RMF/STIG compliance.

Desired Requirements

• Top Secret/ SCI Clearance
• Cisco Certified Network Professional (CCNP) – Enterprise
• Bachelor’s degree in computer science, Information Technology, or equivalent
• Prior experience supporting the Missile Defense Agency (MDA) or other DoD organizations.
• Experience with software-defined networking (SDN), automation, and cross-domain solutions.
• Cloud networking foundations (e.g., AWS/Azure associate level) helpful for hybrid designs.
• Excellent communication skills with the ability to brief senior leaders and translate technical concepts into mission impact

Physical Demands and Work Environment 

The physical demands described here are representative of those that must be met by an employee to successfully perform the essential functions of this position. Reasonable accommodations may be made to enable individuals with disabilities to perform these functions.

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