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Senior Associate, Mechanical Engineering

San Diego, California
Full Time On-site

Summary

Job Description

As an individual contributor, you will function as the responsible Mechanical Engineer on programs and internal development projects. Responsible for the design, layout, testing and evaluation of mechanical and electro-mechanical devices and/or systems for space and airborne products. Prepares design specifications, analysis and recommendations for presentation and approval. Analyzes mechanical requirements to determine feasibility of design within time and cost constraints. The position focuses on integrating electronic components into mechanically robust assemblies that support thermal, environmental, weight, and size requirements, while working with a cross-functional team to solve practical engineering challenges.

Essential Functions:

  • Own all aspects of the mechanical design for products under your control.
  • Design, develop, modify and evaluate complicated mechanical and electro-mechanical components, sub-systems, and systems.
  • Work closely with Designers and Drafters to maintain Engineering models and detailed drawings.
  • Work with Configuration Management to maintain all design documentation.
  • Work multiple tasks in a fast-paced environment and adapt quickly to changing situations.
  • Provide support for existing product designs through the production cycle by incorporating engineering change orders (ECO).
  • Ability to obtain a US Security Clearance.

Required Qualifications (one of the following):

  • Bachelor’s Degree in Mechanical Engineering or a related field, 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:

  • Electronic packaging experience for space and/or airborne environments.
  • CAD proficiency using SolidWorks or CREO.
  • Understanding of industry standards including ASME Y14.5 (Geometric Dimensioning and Tolerancing) and ASME Y14.100 (Engineering Drawing Practices), and their application techniques.
  • Experience with random vibration and shock mechanical testing and validation in accordance with MIL-STD-810.
  • Experience conducting structural and/or thermal finite element analysis (FEA) using software tools such as SolidWorks Simulation, ANSYS, Nastran, Flotherm, etc.
  • Design for Manufacturability and Assembly (DFM/DFMA) experience.
  • Experience with ECAD-MCAD translation.
  • Knowledge of PCB layout and design practices and standards.
  • System development considering machine design and theory of mechanisms, thermal design considerations, and materials selection for demanding environments and applications.
  • Knowledge of mechanical part fabrication processes.

In compliance with pay transparency requirements, the salary range for this role in California, Massachusetts, New Jersey, Washington, and the Greater D.C, Denver, or NYC areas 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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L3Harris Technologies is proud to be an 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.

Please be aware many of our positions require the ability to obtain a security clearance. Security clearances may only be granted to U.S. citizens. In addition, applicants who accept a conditional offer of employment may be subject to government security investigation(s) and must meet eligibility requirements for access to classified information.

By submitting your resume for this position, you understand and agree that L3Harris Technologies may share your resume, as well as any other related personal information or documentation you provide, with its subsidiaries and affiliated companies for the purpose of considering you for other available positions.

L3Harris Technologies is an E-Verify Employer. Please click here for the E-Verify Poster in English or Spanish. For information regarding your Right To Work, please click here for English or Spanish.

About L3 Harris

L3 Harris

L3 Harris is one of the largest defense and aerospace companies in the United States, delivering advanced technologies that support missions across air, land, sea, space, and cyber domains. The company develops communications systems, space payloads, intelligence platforms, electronic warfare capabilities, missile defense technologies, and mission-critical sensors used by the U.S. military, intelligence community, and allied nations around the world.

For job seekers, L3Harris offers opportunities across engineering, software development, cybersecurity, space systems, manufacturing, intelligence, program management, and mission operations. The company is especially attractive to veterans, cleared professionals, and engineers who want to work on advanced technologies that directly support national security. With programs spanning tactical communications, ISR platforms, satellite systems, and defense electronics, employees have the opportunity to contribute to some of the military’s most important capabilities.

Unlike companies focused on a single mission area, L3Harris operates across a diverse portfolio of defense technologies, providing employees exposure to a broad range of programs and technical disciplines. Teams work on everything from secure communications and autonomous systems to space-based sensors and electronic warfare platforms, creating opportunities for both specialization and long-term career growth within the organization.

As governments continue investing in modernization, space capabilities, resilient communications, and advanced sensing technologies, L3Harris remains one of the most important employers in the defense industry. For professionals seeking a mission-driven career with strong growth opportunities, technical challenges, and direct impact on global security, L3Harris continues to stand out as a leading destination in aerospace and defense.

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