Senior Specialist, Systems Engineering - TS​/SCI Poly

L3

Harris is dedicated to recruiting and developing high-performing talent who are passionate about what they do. Our employees are unified in a shared dedication to our customers’ mission and quest for professional growth. L3

Harris provides an inclusive, engaging environment designed to empower employees and promote work-life success. Fundamental to our culture is an unwavering focus on values, dedication to our communities, and commitment to excellence in everything we do.

L3

Harris is the Trusted Disruptor in defense tech. With customers’ mission-critical needs always in mind, our employees deliver end-to-end technology solutions connecting the space, air, land, sea and cyber domains in the interest of national security.

Job Title:
Senior Specialist, Systems Engineer

Job Req: 43726

Job Location:
Palm Bay, FL

Job Schedule: 9/80:
Employees work 9 out of every 14 days - totaling 80 hours worked, and have every other Friday off

Help shape mission-focused system solutions from early concept through verification and delivery. As a Senior Specialist, Systems Engineer, you will translate mission needs into clear requirements, system architectures, CONOPS, use cases, and interface definitions. You will work across software, firmware, hardware, and program teams to resolve technical issues, evaluate system performance, and ensure the solution is ready for its intended operational use.

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• Support the development of system concepts, architectures, CONOPS, and use cases across the system lifecycle.
• Familiarity with defense development life cycles, milestone review processes, and gated development practices.
• Participate in defining, decomposing, and managing system level requirements and maintaining traceability to subsystems and components.
• Support system design, integration, and verification and validation (V&V) activities, while coordinating with software, firmware, hardware, and cross-disciplinary teams.
• Assist with system level trade studies, performance analyses, and allocation of functional and performance requirements.
• Produce and maintain engineering artifacts such as interface definitions, system diagrams, and architecture documentation.
• Analyze system performance data, identify technical issues, and support root cause investigations and corrective actions.
• Support internal and customer design reviews, readiness reviews, and technical presentations.
• Collaborate with product owners, program engineers, and mission stakeholders to refine requirements and system designs.
• Communicate technical findings clearly to cross functional engineering teams.

• Bachelor's Degree and minimum 6 years of prior relevant experience. Graduate Degree and a minimum of 4 years of prior related experience. In lieu of a degree, minimum of 10 years of prior related experience.
• Active Top Secret or Top Secret/SCI clearance (or active within the last two years) and favorable polygraph required.

• Ability to quickly understand customer missions and assist in CONOPS development.
• Experience with MBSE or digital engineering tools (e.g., Cameo, SysML).
• Familiarity with INCOSE standards.
• Strong communication skills and ability to work collaboratively across engineering teams.

• Broad knowledge of engineering domains such as electrical, mechanical, RF, software, or hardware.
• Experience using lab test equipment (oscilloscopes, spectrum analyzers, signal…