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Salary
$77k – $142k per year
Location
In office (Canoga Park)
Seniority
Senior · 6+ years exp
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H-1B filings in 12 months: 5

Confirmed on the employer's own hiring board on Oct 24, 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, Mechanical Engineering

Job Code: 44685

Job Location: On-site at our Canoga Park, CA facility

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

Job Description:

The Missile Solutions segment at the Canoga Park, CA site is seeking a Mechanical Engineer to join the engineering design team. This position will allow the successful candidate to drive innovative solutions into the development and integration of high-pressure and extreme-temperature propulsion systems comprising of hardware such as injectors, thrust chambers, storage tanks, manifolds, and piping. The Mechanical Engineer will bring strong engineering fundamentals to aid the mechanical design team in complex projects under regular supervision.

Essential Functions:

  • Develop concepts for mechanical systems to meet customer propulsion requirements. Perform preliminary design, component sizing, and propulsion hardware packaging to meet volume and mass constraints. Work mechanical solutions needed to integrate propulsion systems with vehicle and payload interfaces.
  • Create mechanical components and their higher-level systems for high-pressure and extreme-environment applications. Interpret engineering models and drawings and perform tolerance studies. Evaluate technical input from hardware suppliers and work with cross-functional teams on producibility improvements and cost savings. Participate in trade studies and preliminary designs using Creo 3D CAD modeling software.
  • Prepare engineering drawings with associated geometric dimensioning and tolerancing in accordance with ASME Y14.5 standards. Participate in team meetings to assure design content for new or modified engineering designs. Release drawings through Windchill PLM system.
  • Contribute to technical presentations for internal and external customers. Assist in preparing engineering reports to support tolerance studies, engineering analyses, failure investigations, and/or technical close-out reports. May participate in engineering review boards to support program-level technical decision making.
  • Participate in development and qualification testing for new product development. Create test integration hardware to support flow testing, vibration testing and hot-fire testing. May support hands-on work during test preparation. May participate with data reduction.
  • Coordinate with manufacturing and quality engineering to ensure hardware is producible and inspectable.
  • Ability to obtain US Secret security clearance.

Qualifications:

  • Bachelor’s Degree and minimum 4 years of prior relevant experience. Graduate Degree and a minimum of 0-2 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 liquid and gaseous pressurized systems and components such as tanks, fluid routing, sealing devices, valves, regulators, etc.
  • Knowledge of liquid-fueled propulsion systems.
  • Understanding of additive manufacturing and/or traditional manufacturing processes such as machining, welding, brazing, heat treating, etc.
  • Working knowledge of ASME Y14.5
  • Experience with CAD software tools (CREO) and PLM systems (Windchill).

In compliance with pay transparency requirements, the salary range for this role in California is $76,500 - $141,500. 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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