Specialist, Mechanical Engineer

Location: North Amityville, NY, US

Employment Type: Full-Time

L3Harris is dedicated to recruiting and developing high-performing talent who are passionate about what they do. Our employees are unified in a shared dedication to our customers’ mission and quest for professional growth. L3Harris provides an inclusive, engaging environment designed to empower employees and promote work-life success. Fundamental to our culture is an unwavering focus on values, dedication to our communities, and commitment to excellence in everything we do.

L3Harris is the Trusted Disruptor in defense tech. With customers’ mission-critical needs always in mind, our employees deliver end-to-end technology solutions connecting the space, air, land, sea and cyber domains in the interest of national security.

Job Title: Specialist, Mechanical Engineer 

Job Number: 44926

Job Location: Amityville, NY

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

Job Description:

L3Harris Stress engineers will review and interpret the mechanical environmental conditions provided in the statement of work and the technical performance specification as it applies to the equipment being developed under the program. Internal loads that will size the equipment to meet the program technical requirements will be developed based on the externally applied acceleration, vibration, shock, and other dynamic loads. The appropriate factors of safety will be applied when writing yield and ultimate margins of safety to demonstrate structural integrity and considering temperature effects on material properties and strength allowables.

Stress engineers are responsible for achieving a compliant design which will meet all program environmental requirements and demonstrated by successfully passing qualification testing. This will be accomplished by conducting hand calculations based on strength of materials and structural mechanics theory. Finite element analysis (FEA), using Ansys, will be employed when conducting structural dynamic analysis of complex geometry individual parts and/or multi-body assemblies.

Essential Functions:

• Review and interpret mechanical environmental requirements from the statement of work and technical performance specifications.
• Determine how environmental conditions (acceleration, vibration, shock, dynamic loads) impact equipment being developed.
• Develop internal loads needed to size and design hardware to meet technical requirements.
• Apply proper factors of safety and produce yield/ultimate margins of safety considering temperature effects on materials.
• Produce compliant structural designs capable of passing environmental qualification testing.
• Perform hand calculations based on strength of materials and structural mechanics theory.
• Conduct finite element analysis (FEA) using Ansys for complex part geometries and multi‑body assemblies.
• Create clean, accurate FE models with optimized geometry and meshing practices.
• Model component interactions within assemblies (contacts, joints, beams, constraint equations) depending on fidelity needs.
• Analyze structural and thermal loads on electronic assemblies, including Circuit Card Assemblies (CCAs).
• Generate structural and thermal margins for CCA hardware and component junction temperatures.
• Use Icepak or similar thermal/CCA modeling tools when applicable.
• Use CAD solid modeling tools to ensure analyzed geometry matches as-designed geometry.
• Collaborate closely with the integrated product development team throughout the design and analysis process.
• Support physical testing by helping create test setups, monitoring tests, and analyzing test data.
• Correlate analytical predictions with physical test results and adjust models accordingly.
• Prepare and deliver presentations summarizing analysis results.
• Document analysis findings clearly in PowerPoint or Word report formats.
• Ability to obtain a U.S. security clearance.

Qualifications:

• Bachelor’s Degree and minimum 4 years of prior relevant experience. Graduate Degree and a minimum of 2 years of prior related experience. In lieu of a degree, minimum of 8 years of prior related experience.

Preferred Additional Skills:

• Non-linear structural analysis
• CFD
• Communication (written and oral)
• Microsoft office tools
• Finite Element Analysis 
• Ansys Mechanical 
• Static, random vibration, shock, thermal, transient load conditions 
• LS-Dyna or ADAMs 
• Icepak
• CAD proficiency

In compliance with pay transparency requirements, the salary range for this role in New York (Greater NYC area) is $88,500.00 MIN - $164,500.00 MAX. 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.

#LI-AG1 

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.

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