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Salary
≈ $88k – $191k per year (Estimated)
Location
In office (Melbourne)
Seniority
Principal · 12+ years exp
Visa
H-1B filings in 12 months: 5

Confirmed on the employer's own hiring board on Oct 21, 2026. First seen by Alion on Oct 20, 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, Systems Engineering

Job Code: 45132

Job Location: Melbourne, FL

Job Schedule: 9/80

Job Description:

L3Harris Technologies, Inc. seeks an experienced technical leader for an Advanced Concept Engineer (ACE) role on the Mission Networks team to deliver modern, secure, reliable and resilient telecommunications networks, information management systems and surveillance solutions. The ACE is the technical interface between L3Harris and the customer, provides technical support to Business Development staff to evaluate new business opportunities for growth, and provides guidance to Engineering on key technology areas for development on Internal Research and Development (IRAD) projects.

The role requires experience in Systems Engineering, system-level architecture development, competitive assessment, cost/benefit analyses, and technical management. A successful candidate should have demonstrated leadership across multiple disciplines, with expertise in model-based design and operations for large scale networks integrating multiple technologies (terrestrial, radio, satellite) and system life-cycle sustainment.

The ACE will partner directly with business development portfolio owners, internal/external Engineering and senior management to define solutions against customer needs and document them in technical presentations, white papers and proposals.

Essential Functions:

  • Build customer intimacy to understand mission needs and priorities, identify the mission gaps and understand how to close the gaps
    • Drive mission discovery interviews, stakeholder mapping, operational workflow analysis, and pain-point and gap analysis
    • Translate customer language into technical and business needs, advocate for the customer’s critical needs to internal stakeholders, and serve as the voice of the customer
    • Drive inclusion of critical technology and capabilities in technical roadmaps
    • Assesses competitors and potential partners to define win strategies that maximize value to customers
  • Architect solutions to meet the customer’s operational needs
    • Develop Use Cases and Concept of Operations (CONOPS) representing customer missions, decompose requirements, perform trade studies to include making/buy decisions, designing scalable and resilient solutions
    • Identify L3Harris capabilities demonstratable to customers and develop demo scenarios to showcase the benefits
  • Support business development and competitive business capture by shaping discriminating secure networking, communications and surveillance solutions.
    • Support business development activities including RFI/RFP analysis, generating compliance matrices, solution shaping, win-theme development, technical volume writing, and competitive positioning
    • Prepare and deliver technical presentations to cross-functional and integrated product teams
    • Identify and maintain relationships with strategic partners, both internal and external

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.
  • 5+ years of experience implementing/deploying terrestrial telecommunications; familiarity with IP/MPLS, SD-WAN, routing/switching, fiber and microwave transport, LTE/5G wireless, and QoS
  • 5+ years of experience leading and executing architecture development using MOSA principles for DoW/government programs using Agile processes
  • 5+ years of experience as a trusted advisor to the customer translating the mission to actionable system capabilities and solutions
  • Ability to obtain an FAA Public Trust or DoW clearance

Preferred Additional Skills:

  • Experience with network implementation; including site surveys, deployment engineering, cutover/migration strategies, network operations, service management
  • Experience with telecommunications carrier/service-provider integration
  • Experience implementing/deploying non-terrestrial communications; familiarity with SATCOM architectures and services, LEO/MEO/GEO tradeoffs, hybrid terrestrial-satellite network design
  • Understanding of information management concepts like data architecture, data governance, real-time data distribution, API/event-driven integration, and cloud/edge deployment patterns
  • Understanding of surveillance concepts like primary/secondary surveillance radar, ADS-B, multilateration, space-based surveillance, sensor fusion, and track processing
  • Understanding of cybersecurity and critical infrastructure like Zero Trust concepts, network segmentation, secure remote access, OT/IT integration, NIST and CISA guidance, classified/sensitive-system considerations
  • Experience with capture and proposal support, authoring technical volumes, generating Basis of Estimates (BOEs), maintaining technical roadmaps and identifying adjacent capability opportunities
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