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Salary
$122k – $227k per year
Location
In office (Carlsbad)
Seniority
Staff · 13+ years exp
Visa
H-1B filings in 12 months: 5

Confirmed on the employer's own hiring board on Nov 9, 2026. First seen by Alion on Nov 6, 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: Lead, Mechanical Engineering

Job Code: 47508

Job Location: Carlsbad, CA

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 Senior Mechanical Engineer to lead the design, development, and qualifications of complex electro-mechanical systems within a collaborative team environment.

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

Essential Functions:

  • Lead the design and development of modules and electronics for the Aerospace and/or Defense industries
  • Create detailed drawing packages applying GD&T and ASME Y14.5 and manage/document large assemblies
  • Prototype, Integrate, and Test component parts and assemblies
  • Generate analysis for stress, thermal, shock and vibration using FEA software (ANSYS, etc.)
  • Develop test plans and procedures for mechanical subsystems
  • Perform test and evaluation of component parts and systems
  • Lead 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.
  • Ability and willingness to travel 10%
  • Ability to obtain a US Secret security clearance

Qualifications:

  • Bachelor’s Degree and minimum 9 years of prior relevant experience. Graduate Degree and a minimum of 7 years of prior related experience. In lieu of a degree, minimum of 13 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, and/or packaging of modules and electronics with considerations of thermal and structural loading and for optimizations of size, weight, and power.
  • Experience with structural and thermal analysis
  • Experience writing and executing Environmental Test Plans (knowledge of MIL-STD-810)
  • Experience with CAD software tools (NX) and PLM systems (Teamcenter).
  • Basic proficiency with Microsoft Office (Word, Outlook, Excel, PowerPoint)
  • Excellent written and oral communication skills
  • Demonstrated leadership, communication and interpersonal skills within mechanical and multidiscipline teams

In compliance with pay transparency requirements, the salary range for this role in California is $122,000 - $227,000. 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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