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L3Harris Sr Systems Engineer in Plano, Texas


Job Title: Sr Systems Engineer

Job Code: IMS20210906-62482

Job Location: Plano, TX

We are a company of innovators, game changers, and entrepreneurs. As a prime contractor, we provide a broad range of communication, electronic, and sensor systems used on military and commercial platforms across the globe. We embrace innovative and progressive ideas to advance our products for military and commercial customers. ISR Systems Segment is one of three L3 business segments, and provides a broad range of aerospace systems, security and detection systems, and pilot training.

Duties include performing as part of a team that supports the requirements, design, development, test, and integration of complex, specialized hardware/software systems installed on ground and airborne ISR and communication platforms.

The System Engineer is expected to:

  • Design and develop physical architectures incorporating aircraft avionics and mission systems including Self-protect, Weapons, Mission Computing, Communications, Radar, EOIR, COMINT, ELINT and Navigation subsystems

  • Airborne and/or Shipborne SIGINT expertise

  • Develop system level requirements

  • Perform requirement traceability methods and purpose

  • Perform systems engineering trade study processes

  • Evaluate trade studies for accuracy and completeness

  • Write subsystem specifications based on system level requirements

  • Evaluate alternative solutions and establish preliminary system design



  • Bachelor’s degree in an appropriate engineering discipline (Electrical, Systems, Software, Physics, etc.) and a minimum of 15 years of applicable experience.

  • Excellent written, oral, and presentation communication skills

  • Experience working successfully both independently and in a team environment with the ability to lead small test teams through an entire build cycle

  • Willingness to travel

  • US citizen with the ability to obtain & maintain a DoD security clearance

    Strongly prefer:

  • Design and integration of aircraft (fixed wing and rotary) subsystems

  • Full SDLC implementation and experience

  • Experience with IBM DOORS Requirements Management Tool

  • Experience with MBSE tools such as Magic Draw

  • Experience working with subcontractors and US Government customers

  • Experience developing, authoring, and implementing software and system test plans in a team environment

  • Hands-on experience with testing, integrating, and verifying software and/or hardware

    Position requires the ability to obtain and maintain a DOD security clearance which requires U.S. Citizenship. An active DOD Secret or higher clearance is preferred.

L3Harris Technologies is proud to be an Affirmative Action/Equal Opportunity Employer. L3Harris is committed to treating all employees and applicants for employment with respect and dignity and maintaining a workplace that is free from unlawful discrimination. All applicants will be considered for employment without regard to race, color, religion, age, national origin, ancestry, ethnicity, gender (including pregnancy, childbirth, breastfeeding or other related medical conditions), gender identity, gender expression, sexual orientation, marital status, veteran status, disability, genetic information, citizenship status, characteristic or membership in any other group protected by federal, state or local laws. L3Harris maintains a drug-free workplace and performs pre-employment substance abuse testing and background checks, where permitted by law.