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Salary
$81k – $150k per year
Location
In office (Yorba Linda)
Seniority
Senior · 6+ years exp
Visa
H-1B filings in 12 months: 5

Confirmed on the employer's own hiring board on Nov 2, 2026. First seen by Alion on Oct 23, 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: Sr Associate, Systems Engineer

Job Code: 43789

Job Location: Yorba Linda, CA

Schedule: 4/10: Employees work 10 hour days, - preferred but flexible to 5/40 or 9/80

Job Description:

Join us for an exciting opportunity at L3Harris in Yorba Linda, CA. This is early-career engineering position with a growth path to higher-level positions. As a Sr. Associate Systems Engineer, you will perform tasks independently with guidance from senior Systems Engineers for Systems Engineering analysis, development, design, requirements, maturation, maintenance, and verification and validation over the program lifecycle. The Navigation/GPS products operate in military embedded real-time systems and can be used in weapons, ground, airborne, maritime, and space environments.

Essential Functions:

  • Generation, traceability, allocation, verification, validation of requirements specifications.
  • Integration and test planning, including generation of plans and procedures.
  • Conduct trade studies.
  • Generation of functional block diagrams, use-case diagrams.
  • Perform system reliability and maintainability analyses.
  • Perform system safety analyses.
  • Creation and presentation of design review materials.
  • Unit-level and system-level integration and testing, both in the laboratory and in the field.
  • Verification of system interfaces.
  • Ability to obtain Active US DoW Secret clearance or higher.

Qualifications:

  • Bachelor’s Degree in Electrical Engineering, Applied Mathematics, or similar STEM major with a minimum 2 years of prior relevant experience. A Graduate Degree in Electrical Engineering, Applied Mathematics, or similar STEM major with 0 to 2 years additional prior related experience. In lieu of a degree, minimum of 6 years of prior related experience.
  • 2+ years of previous experience with DOORS, Cameo, MATLAB/Simulink, or C/C++, including coursework.

Preferred Additional Skills:

  • Soft skills (I.E. Proficient in MS Office, Strong communication…)
  • Familiarity or interest in GPS, GPS Receivers, or Assured Position, Navigation, Timing (APNT).
  • Must have strong verbal and written communication skills.
  • Must work effectively in both independent and team environments.
  • Experience with RF Signal Processing, Digital Signal Processing (DSP), and/or GPS/INS algorithm development.
  • Experience in Kalman Filters (KF/EKF), Adaptive Filtering, Optimization Theory and Design.
  • Experience in Modeling and Simulation (M&S).
  • Active US DoW Secret clearance or higher a plus.

In compliance with pay transparency requirements, the salary range for this role in California is $80,500 - $149,500. 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.

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