Scientist, Mechanical Engineer – Space Mechanisms

L3Harris Technologies

Senior Mechanical Engineer designing high-precision space opto-mechanical telescopes at L3Harris Technologies. Supporting space programs and internal research within a multidisciplinary team.

Posted 6/6/2026full-timeWilmington • Massachusetts • 🇺🇸 United StatesSeniorLead💰 $146,000 - $271,000 per yearWebsite

About the role

Key responsibilities & impact

Design high-precision and complex space opto-mechanical telescopes hardware as part of an Integrated Product Team (IPT)
Hardware variety spans machined components, composite structures, deployable mechanisms, opto-mechanical support structure, bearings, capital tooling and fixturing, launch mechanisms
Leverage high reliability, flight-proven, heritage design concepts in order to produce high quality designs within an aggressive timeline
Lead and participate in technical team reviews and technical review boards
Interface with outside suppliers/customers and other engineering disciplines to drive designs to closure (Structural, Thermal, Electrical, Manufacturing, Integration and Testing, Quality, Configuration Management)
Present design details at program reviews to customers and independent reviewers
Develop and perform testing to show proof-of-concept and/or qualification of new designs
Support production operations with design of tooling, test equipment, and shop aids
Provide regular status updates to Program Management and Project Engineers on cost and schedule performance

Requirements

What you’ll need

Bachelor’s Degree in Mechanical Engineering, Aerospace Engineering, Engineering Mechanics, Control Systems, or related disciplines from an ABET-accredited program
Minimum of 12 years of prior relevant experience
Graduate Degree and a minimum of 10 years of prior related experience. In lieu of a degree, minimum of 16 years of prior related experience.
7+ years in CAD modeling and design tools
Prior or current experience with spaceflight mechanism applications
5+ years of professional experience leading a multi-disciplinary mechanical engineering team through system requirements, design, analysis, test, hardware build, delivery and launch
Professional experience with analysis methods (FEA and hand-calculations) is required
Strong proficiency in design and 3D modeling of solids, surfaces, and assemblies (Creo, NX, Catia, Solidworks, Autodesk Inventor)
Proficiency in analysis FEA tools such as FEMAP, MSC Nastran, and/or ANSYS
Experience with Halpin Engineering’s Orbis for bearing analysis
Proficiency in tolerance stack-up analysis for mechanical designs as well as GD&T.

Benefits

Comp & perks

health and disability insurance
401(k) match
flexible spending accounts
EAP
education assistance
parental leave
paid time off
company-paid holidays

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills & Tools

CAD modelingdesign toolsFEAhand-calculations3D modelingtolerance stack-up analysisGD&Tmechanical designproof-of-concept testingqualification testing

Soft Skills

leadershipcommunicationteam collaborationproblem-solvingproject management

Certifications

Bachelor’s Degree in Mechanical EngineeringBachelor’s Degree in Aerospace EngineeringGraduate Degree in related disciplines