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Architect · 16+ years exp
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Confirmed on the employer's own hiring board on Nov 13, 2026. First seen by Alion on Nov 13, 2026. L3Harris Technologies scores A on the Alion truth index.

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L3Harris Technologies is an American defense contractor formed in 2019 by the merger of L3 Technologies and Harris Corporation. It builds tactical radios and military communication systems, electronic warfare and intelligence, surveillance and reconnaissance equipment, space sensors and satellites, night vision devices, and uncrewed surface vessels, and owns the rocket engine maker Aerojet Rocketdyne. Its main customers are the United States Department of Defense and allied governments. The company is headquartered in Melbourne, Florida, United States.

Job Title: Scientist, Network Planning Engineering (Melbourne, FL)

Job Code: 47722

Job Location: Melbourne, FL (Onsite)

Job Description:

The Tier 3 Network Planning Engineering Manager is responsible for providing advanced technical leadership, third-level support, and strategic network planning for IP backbone and customer routing environments. This role serves as a senior engineering resource for troubleshooting complex network issues, designing and implementing scalable network solutions, and leading planning efforts that support customer requirements and critical backbone architecture. This position will also drive network planning initiatives, capacity management, best practices, and continuous improvement efforts across the organization. The Tier 3 Network Planning Engineering Manager partners closely with engineering, operations, NOC, and cross-functional teams to ensure network reliability, performance, scalability, and operational readiness.

Essential Functions:

  • Provide Tier 3 support for troubleshooting and resolving complex IP backbone and customer routing issues.
  • Lead the design, engineering, and implementation of solutions that support customer requirements and critical backbone architecture.
  • Serve as the technical lead for network planning activities, including capacity forecasting, growth planning, architectural evolution, and long-term scalability initiatives.
  • Develop and maintain network documentation, implementation plans, standards, and training materials for engineering and NOC teams.
  • Define, implement, and promote best practices for network design, planning, operations, and capacity management.
  • Identify opportunities for automation, process improvement, and network optimization to improve efficiency, reliability, and performance.
  • Routinely perform proof-of-concept testing, service trials, and system integration validation while documenting results and recommendations.
  • Provide technical leadership and guidance to engineering teams during incident response, major network changes, and strategic initiatives.
  • Collaborate with internal stakeholders to evaluate current and future network needs, ensuring alignment with business, customer, and operational objectives.
  • Support on-call rotation and planned off-hours maintenance events as needed.
  • Participate in project planning sessions, technical interchange meetings, and customer design reviews.
  • Coordinate execution activities to ensure project milestones, installation windows, and deployment schedules are met.
  • Partner with Project Engineers to develop network implementation plans, engineering bills of materials, and integration strategies.

Qualifications:

  • Bachelor’s Degree and a minimum of 12 years of prior relevant experience. Graduate Degree and a minimum of 10 years of prior related experience. In lieu of a degree, there is a minimum of 16 years of prior related experience.
  • 10+ years of network engineering experience with IP networks.
  • 8+ years of experience in the design, development, and implementation of IP and MPLS network architectures.

Preferred Additional Skills:

  • Advanced Cisco certifications such as CCNP or CCIE.
  • Demonstrated experience leading network planning, capacity planning, or technical engineering initiatives in a complex network environment.
  • Experience leading cross-functional technical efforts and mentoring junior or mid-level engineers.
  • Excellent IP configuration and troubleshooting skills, including:
  • Experience developing and managing IP addressing plans.
  • Advanced presentation, communication, and technical writing skills.
  • Strong proficiency with Microsoft Office applications and Visio.
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