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Job Title: Specialist, Network Plan Engineer

Job Code: 38552

Job Location: Dahlgren, VA

Job Schedule: 9/80

Job Description:

As the premier provider of Space Domain Awareness (SDA) mission solutions for the United States Space Force, L3Harris is seeking an experienced Network Engineer to join our team. The ideal candidate will have strong experience in designing, operating, troubleshooting, and securing enterprise networks, with particular expertise in Juniper, Cisco, Palo Alto, automation, and compliance.

This role requires a highly capable engineer who can serve as a technical lead for local network modernization, resolve advanced Layer 2/Layer 3 issues, support Zero Trust initiatives, maintain DISA STIG compliance, and execute changes in high-availability environments with minimal or no downtime. This position is on-site in Naval Support Facility Dahlgren, VA.

Essential Functions:

• Design, implement, maintain, and troubleshoot enterprise network infrastructure across classified and unclassified environments.
• Administer and optimize network deployments.
• Support routing and switching operations, including BGP, OSPF, VLANs, STP, and enterprise segmentation.
• Perform advanced root cause analysis and resolution of complex network incidents affecting mission-critical operations.
• Plan and execute network upgrades, patching, and lifecycle refresh efforts with minimal operational impact.
• Develop and maintain network diagrams, SOPs, TTPs, implementation plans, and technical documentation.
• Automate network configuration, compliance, and deployment tasks using scripting and templating tools.
• Implement and maintain DISA STIG-compliant network configurations across enterprise devices.
• Support Zero Trust Architecture (ZTA) initiatives through posture assessment, profiling, policy enforcement, and access control.
• Manage enterprise-scale switch provisioning and configuration standardization efforts.
• Monitor network health, availability, and performance using enterprise management tools.
• Provide technical guidance and escalation support to junior engineers and technicians.
• Coordinate with cybersecurity, systems, COMSEC, and external organizations to support network changes and vulnerability remediation.
• Deliver technical briefings and status updates to leadership and stakeholders.
• Support after-hours maintenance windows and on-call response for mission-critical outages, as needed.
• Up to 10% travel may be required.

Qualifications:

• Bachelor's Degree in Network Engineering, Information Technology, Cybersecurity, or a related field, and minimum 4 years of prior relevant experience. Graduate Degree and a minimum of 2 years of prior related experience. In lieu of a degree, minimum of 8 years of prior related experience.
• Active U.S. DoW Top Secret security clearance with the ability to obtain SCI access within 6 months of hire.
• 6+ years of experience supporting enterprise network infrastructure in a DoD, federal, or similarly regulated environment.
• Strong hands-on experience configuring, maintaining, troubleshooting, and supporting lifecycle management for Juniper and Cisco network devices.
• Experience applying and maintaining DISA STIG compliance across network devices.
• Experience leading technical training, mentoring junior staff, or serving as a team SME.
• Experience with network automation using scripting, templates, or similar tools.

Preferred Additional Skills:

• Ability to troubleshoot complex network issues across multi-site or large-scale environments.
• Experience producing technical documentation, including diagrams, SOPs, and engineering procedures.
• Ability to work independently and collaboratively in operationally sensitive, mission-critical environments.
• Experience with multi-vendor network fabric management using Apstra Data Center Director for provisioning, visibility, automation, and lifecycle management.
• Hands-on experience troubleshooting on-premises and off-premises fiber optic infrastructure, including fiber patching, light-level verification, and circuit handoff coordination with DISA and/or other government and commercial entities.
• Experience implementing Zero Trust Architecture using Cisco ISE or similar technologies.
• Experience configuring Arista and Dell network devices.
• Experience supporting large-scale enterprise environments with thousands of endpoints and hundreds of network devices.
• Experience performing zero-downtime upgrades in high-availability environments.
• Experience with enterprise monitoring and management platforms such as SolarWinds
• Experience supporting classified network environments.
• Hands-on experience installing, configuring, managing, and troubleshooting ViaSat and GDMS Type 1 encryptors, including COMSEC/keying coordination.
• Experience coordinating with multiple internal and external organizations before, during, and after planned network changes, emergency remediation, and mission-critical maintenance windows.
• Experience submitting vendor support cases for immediate resolution.
• Experience with network audits, IP space analysis, and address management.
• Familiarity with PL1 or similarly controlled facilities.
• Active Security+ CE Certification.

In compliance with pay transparency requirements, the salary range for this role in California, Massachusetts, New Jersey, Washington, and the Greater D.C, Denver, or NYC areas is $88,500 - $164,500. The salary range for this role in Colorado state, Hawaii, Illinois, Maryland, Minnesota, New York state, Cleveland Ohio, and Vermont is $76,500 - $142,500. This is not a guarantee of compensation or salary, as final offer amount may vary based on factors including but not limited to experience and geographic location. L3Harris also offers a variety of benefits, including health and disability insurance, 401(k) match, flexible spending accounts, EAP, education assistance, parental leave, paid time off, and company-paid holidays. The specific programs and options available to an employee may vary depending on date of hire, schedule type, and the applicability of collective bargaining agreements