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Sr Specialist, Mechanical Engineer - Aircraft Propulsion Systems

Ashburn, Virginia

Job ID 10925
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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 space, air, land, sea and cyber domains. L3Harris has approximately $18 billion in annual revenue and 50,000 employees, with customers in more than 100 countries.

Job Title:SrSpecialist, Mechanical Engineer – Aircraft Propulsion Systems

Job Code: 10925

Job Location: Ashburn, VA (relocation assistance is available)

Job Description:

This Sr Specialist, Mechanical Engineer – Aircraft Propulsion Systems role will work across a broad range of disciplines with an emphasis on propulsion subsystem development, analysis, and testing for unmanned aircraft.  Primary responsibilities for this role include being the primary interface for critical suppliers, evaluating and testing propulsion subsystems, conducting data analyses, and interfacing with the vehicle design team for integration.

The Agile Development Group (ADG) division is part of L3Harris’ Advanced Combat Systems and specializes in developing disruptive, next-generation technologies for advanced Unmanned Air Systems (UAS/UAV), advanced radar systems, next-generation weapon systems, and other RF sensor technologies, using small company agility combined with large company experience and resources. 

Essential Functions:

  • Lead development effort for key components of propulsion subsystem, providing technical guidance to internal engineers as well as external suppliers, while ensuring technical, schedule and cost objectives of the hardware are met.
  • Provide engineering guidance and direction to junior engineers from conceptual design through release.
  • Interface with test engineers to define test objectives, conduct testing to evaluate performance of propulsion subsystems, leverage multiple types of instrumentation to collect data.
  • Field support for range testing activities
  • Interface with analysts to define requirements for reporting plans, interpret test output data to inform trade studies and drive design decisions.
  • Participate in and/or lead multi-disciplinary internal design reviews.
  • Assist with program schedule creation and hardware development planning, providing engineering labor and material estimates.
  • Physical Requirements: ability to lift to 20 lbs. 
  • Up to 10% travel may be required. 


  • Bachelor’s Degree and minimum 6 years of prior relevant experience. Graduate Degree and a minimum of 4 years of prior related experience. In lieu of a degree, minimum of 10 years of prior related experience.
  • Ability to obtain and maintain any additional program clearances.
  • Prior or current experience performing basic operations in MATLAB. 
  • Experience in solid modeling (Creo Parametric preferred)
  • Experience in aircraft, UAV, or missile system propulsion design

Preferred Additional Skills:

  • Master’s degree in mechanical engineering or related field (though not required)             
  • Working knowledge and experience utilizing Simulink or other simulation and modeling tools.
  • Working knowledge and experience utilizing LabVIEW and/or Data Acquisition Systems.
  • Strong knowledge of jet engine design, fuel system design, incompressible fluids modeling. 
  • Prior UAV detailed design experience.
  • Exposure to/experience with engine or fuel system testing.
  • Design verification test planning and fixture design or field-testing experience.

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.

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.

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