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Salary
$76k – $141k per year
Location
In office (Carlsbad)
Seniority
Senior · 6+ years exp
Visa
H-1B filings in 12 months: 5

Confirmed on the employer's own hiring board on Nov 12, 2026. First seen by Alion on Nov 12, 2026. L3Harris Technologies scores A on the Alion truth index.

Overview
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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: Senior Associate, Mechanical Engineer

Job Code: 47766

Job Location: Carlsbad, CA

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

Job Description:

We're seeking a Mechanical Engineer Senior Associate to design, develop, and qualify mechanical systems within a collaborative team environment.

Your day-to-day work will center on 3D modeling, hardware deisgn documentation, analysis, integration and testing, while operating within a multidisciplinary team.

Essential Functions:

  • Assist in the development, integration, and operational support of modules and electronics for the Aerospace and/or Defense industries
  • Mechanical design in 3D CAD
  • Develop design documentation that includes drawings, specifications and data items that meet customer and military specifications
  • Prototype, Integrate, and Test component parts and assemblies
  • Assist with and generate report of stress, thermal, shock and vibration analysis using FEA software (ANSYS, etc.)
  • Develop test plans and procedures for mechanical subsystems
  • Perform test and evaluation of component parts and systems
  • Participate in peer reviews, PDRs, CDRs, and other required design reviews
  • Coordinate with manufacturing and quality engineering to ensure hardware is producible and inspectable.
  • Adhere to company processes for product development, configuration management, purchasing, etc.
  • 10% travel required

Qualifications:

  • Bachelor’s Degree and a minimum of 2 years of prior related experience. Graduate Degree or equivalent with 0 to 2 years of prior related experience. In lieu of a degree, minimum of 6 years of prior related experience.

Preferred Additional Skills:

  • Experience in the design, development, and/or production of mechanical systems for the Aerospace and/or Defense industries.
  • Experience with analysis
  • Understanding of GD&T and ASME Y14.5
  • Experience with CAD tools and PLM systems.
  • Basic proficiency with Microsoft Office (Word, Outlook, Excel, PowerPoint)

In compliance with pay transparency requirements, the salary range for this role in California is $76,000 - $141,000. 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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