Senior Mechanical Engineer (Defense/Space Systems)
LeCroy
Montgomeryville, PA · Posted November 3, 2026
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This listing does not state pay. Across 80 open senior mechanical engineer listings that state pay, the middle half runs $150,000 to $173,000 and the median is $164,000.
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About the job
Be visionary
Teledyne Technologies Incorporated provides enabling technologies for industrial growth markets that require advanced technology and high reliability. These markets include aerospace and defense, factory automation, air and water quality environmental monitoring, electronics design and development, oceanographic research, deepwater oil and gas exploration and production, medical imaging and pharmaceutical research.
We are looking for individuals who thrive on making an impact and want the excitement of being on a team that wins.
Job Description
Company Overview
Teledyne Judson Technologies (TJT) is a global leader in detectors from the Visible to Long Wave Infra-red spectrum, offering an extensive range of single element infrared detectors. Two-dimensional focal plane arrays (InGaAs, InSb, and HgCdTe) and Integrated Dewar Cooler Assemblies (IDCA) complement our detector portfolio. The high performance of our detectors makes them highly valued in both commercial markets and critical space applications.
Position Summary
The Senior Mechanical Engineer is responsible for the design, analysis, integration, testing, and qualification of advanced integrated dewar assemblies and cameras for space, defense, and aerospace applications. The role requires extensive thermal analysis, design, and modeling, along with proficient use of ANSYS simulation tools, strong systems engineering awareness, and the ability to lead multidisciplinary technical efforts from concept through qualification and production.
Key Responsibilities
Mechanical Design & Development
Lead design and development of precision mechanical, optomechanical, thermal, and structural assemblies.
Participate in system-level integration and verification activities.
Support contamination control, outgassing management, and cleanliness requirements.
Support testing to NASA GEVS, MIL-STD, and other requirements standards as needed
Evaluate and model complex thermal designs for harsh environments (high efficiency, low SWoT)
Generate and review 3D CAD models, drawings, and engineering documentation.
Perform tolerance analyses and design for manufacturability (DFM) and assembly (DFA).
Select materials, coatings, adhesives, fasteners, and manufacturing processes suitable for harsh environments.
Analysis & Simulation
Utilize ANSYS Mechanical and related tools to perform:
Thermal and thermomechanical analysis
Linear and nonlinear structural analysis, including modal, random vibration, and shock
Static stress analysis
Fatigue and life assessment
Harmonic response analysis
Contact and bolted joint analysis
Required Qualifications
Bachelor's degree in Mechanical Engineering or related discipline.
8+ years of mechanical engineering experience.
Advanced experience with ANSYS Mechanical.
Strong proficiency with CAD software such as Creo, SolidWorks, NX, or Inventor.
Strong understanding of:
GD&T (ASME Y14.5)
Thermal analysis
Structural mechanics and bolted joint analysis
Experience developing military, aerospace, or high-reliability products.
Ability to obtain and maintain a security clearance (if required).
Preferred Qualifications
Master's degree in Mechanical or Aerospace Engineering.
10+ years of aerospace, defense, or spaceflight experience.
Experience with:
Design for new space (Low-Earth Orbit, Geosynchronous Orbit) applications
Cryogenic systems and cryocoolers
Optical instrumentation
UHV/Vacuum systems
Employment eligibility
Due to the type of work at the facility and certain access restrictions, successful applicants must be a U.S. Person.
What can Teledyne offer YOU? A Competitive Salary & Benefits Package Excellent Health, Dental, Vision Paid Vacation Time Paid Sick Time Life Insurance Benefits Paid Holidays 401(k) Eligibility Employee Stock Purchase Plan Educational Tuition Reimbursement
Teledyne and all of our employees are committed to conducting business with the highest ethical standards. We require all employees to comply with all applicable laws, regulations, rules and regulatory orders. Our reputation for honesty, integrity and high ethics is as important to us as our reputation for making innovative sensing solutions.
Teledyne is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability or veteran status, age, or any other characteristic or non-merit based factor made unlawful by federal, state, or local laws.