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L3Harris Sr. Mechanical Engineer in Northampton, Massachusetts

Sr. Mechanical Engineer

Job ID IMS20201111-53026


L3Harris is dedicated to recruiting and developing diverse, 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 Technologies is an agile global aerospace and defense technology innovator, delivering end-to-end solutions that meet customers’ mission-critical needs. The company provides advanced defense and commercial technologies across air, land, sea, space and cyber domains. L3Harris has approximately $18 billion in annual revenue and 48,000 employees, with customers in more than 100 countries.


Sr. Mechanical Engineer

We are currently seeking a Sr. Mechanical Engineer for our Northampton, MA location.

L3Harris is currently hiring for multiple positions and levels. Candidates that apply may be considered and/or hired at an appropriate level based on skill set.

Job Description: Support design effort by performing mechanical engineering design and analysis to establish validity of proposed designs. Participate in design reviews and provide feedback to enhance the structural and thermal performance of components and mechanisms.

Essential Functions:

  • Develop working designs, computer solid models and design layouts of complex parts, mechanisms, and optical mounting using MCAD/MCAE tools

  • Create/review detail and assembly drawings to ASME Y14.100 and internal standards.

  • Perform and document structural and thermal analysis utilizing classical techniques and finite element analysis to establish the validity of proposed designs. Perform kinematic and dynamic analysis of mechanisms. Perform modal shock and vibration analysis. Conduct and document thermal analysis and flow induced vibration analysis.

  • Work with mechanical designers and other engineers to optimize designs for structural and thermal performance.

  • Prepare and review design documentation in accordance with contract requirements and/or internal standards.

  • Support the creation of technical performance specifications and assist Purchasing Dept. with procurement of items as necessary.

  • Contribute to technical proposal efforts as part of a program capture team.

  • Perform estimates for manpower and other resources factors for related tasks. Provide tasking inputs to support Integrated Master Schedule creation and maintenance

  • Prepare and present internal and external design reviews, Preliminary Design Review and Critical Design Review activities to demonstrate the design meets all specifications and customer requirements. Critically examine a new or existing design to verify that design principles have been correctly applied.

  • Support the assembly and integration of products/systems. Support mechanical system and component alignment, testing, troubleshooting and evaluation.

  • Ensure quality through adherence to the Quality Systems Manual, applicable Standard Work Instructions and other standards invoked internally or contractually.

  • Work independently and check/verify work performed by peers.

  • Perform other duties as required


  • Bachelor’s Degree in Mechanical Engineering

  • Must have seven (7) or more years of experience in Mechanical Engineering field.

  • Software used: Microsoft Word, Excel and PowerPoint, Outlook, Experience with Analysis tools such as ANSYS, ABAQUS and CFDesign, PTC CREO/Simulate, and MathCAD

  • Ability to obtain and maintain a secret clearance.

  • Must be a U.S. Citizen

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 résumé for this position, you understand and agree that L3Harris Technologies may share your résumé, 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 proud to be an Affirmative Action/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.