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Senior Specialist Mechanical Engineering

L3Harris


Job Location:

Ashburn, IL - USA

Yearly Salary: USD 102000 - 189000
Posted: 29 September 2026 (2 days ago)
Application Deadline: 27 December 2026
Vacancies: 1 Vacancy

Job Summary

Job Title: Senior Aerospace Mechanical Engineer

Job Code: 43755

Job Location: Ashburn VA - On Site

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 Agile Development Group (ADG) 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 and big company experience.

The Senior Aerospace Mechanical Engineer will lead a team of Mechanical Engineers dedicated to designing our Unmanned Aircraft products. This role requires guiding the design of the vehicle from concept through to production integration and test support. The ideal candidate will possess innovative problem-solving skills and the ability to identify key requirements that will significantly influence the final design. Additionally the Senior Mechanical Engineer will drive the engineering efforts to optimize the vehicle based on their understanding of these critical requirements. The importance of fielding hardware within weeks not years is paramount to this role ensuring rapid development and deployment of cutting-edge technology.

Essential Functions:

Lead conceptual and detail design of unmanned aircraft and their supporting systems including structures and internal packaging

Author PDRs CDRs and other required design reviews

Significant CAD modeling of parts & assemblies

Perform trade studies to evaluate designs

Basic structural and thermal analysis of components & assemblies

Drive schedule cost and technical execution for internal product teams

Cost estimation for proposals

Packaging of circuit cards wire harnesses and other electrical systems

Interface to customers & upper management

Provide guidance and mentorship for other team members formally or informally

Responsible to direct and review the work of junior engineers and designers and technicians.

Participate in risk assessment and develop mitigation strategies for complex projects

Up to 10% travel may be required

Other duties as required

US Citizen with the ability to obtain a Secret Security clearance

Qualifications:

  • Bachelors Degree in Mechanical or Aerospace Engineering or a related field 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.

Preferred Additional Skills:

Bachelors Degree in Mechanical or Aerospace Engineering

Minimum 5years experience in mechanical design requirements analysis specification generation interface definition component selection component 3D CAD modeling data collection and product documentation

Minimum 3 years experience leading and collaborating in a multi-disciplinary diverse and dynamic team environment.

Prior or current experience working on aerospace products/systems

5 years experience in 3D CAD modeling PTC Creo Catia NX or Solidworks

Experience using Microsoft Office products

Prior experience in developing aircraft structures or major sub-assemblies is strongly desired

Expertise in 3D CAD modeling - PTC Creo is strongly preferred

Strong hands-on capabilities to include integration and diagnosis of complex mechanisms and products

Experience in design for and testing to military environments (i.e. temperature vibration shock etc.)

Electronics packaging experience particularly with circuit card assemblies and wire harnessing.

Excellent people skills with experience leading and collaborating in a multi-disciplinary diverse and dynamic team environment.

Excellent communication skills (written verbal & presentation)

In compliance with pay transparency requirements the salary range for this role in the Greater D.C. areas is Min $102000.00 - $189000.00 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 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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Required Experience:

Senior IC


About Company

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At L3Harris, we anticipate and mitigate risk with agile end-to-end solutions that meet our customers' mission-critical needs across all domains.

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