Kurt J. Lesker Company (KJLC) is seeking a Senior Mechanical Engineer to design, develop, and test mechanical components and systems, including vacuum chambers, robotic systems, and deposition equipment. This role leverages deep engineering expertise to drive product development from concept through production while collaborating closely with Sales, Product Management, R&D, Engineering, and Manufacturing. Responsibilities span the full product lifecycle including fabrication, operation, application, installation, and repair of mechanical products—within a role that offers a high degree of creativity, technical ownership, latitude, leadership and broad impact across complex systems.   

Sr. Mechanical Engineer 

• Type of Employment: Full-Time 

• Location: Jefferson Hills, PA (Onsite – South of Pittsburgh, PA) 

• Division/Department: Process Equipment Division/Engineering 

• Reports To: Engineering Manager  

Key Job Elements: 

• Design and detail mechanical components and assemblies for advanced vacuum systems, deposition equipment, and precision machinery 

• Lead engineering design activities with high initiative, sound judgment, and accountability 

• Develop and manage project plans, budgets, and timelines for new product development 

• Create and maintain Bills of Material (BOMs) within ERP systems 

• Collaborate with Sales and Product Management to translate customer and market requirements into engineering solutions 

• Partner with R&D and scientific teams to ensure designs meet technical specifications and performance constraints 

• Work closely with internal manufacturing and machine shop teams to optimize design for manufacturability and cost 

• Source and manage vendors and subcontractors for custom mechanical components and fabrication 

• Build, assemble, and test prototypes, subassemblies, and mechanical systems 

• Drive cost reduction, value engineering, and continuous improvement initiatives 

• Analyze production costs, supply chain inputs, and delivery requirements to support scalable manufacturing 

• Support product lifecycle activities including installation, application, and troubleshooting 

• Travel domestically and internationally as needed 

• Perform additional duties as required 

Qualifications: 

Required 

• Minimum 8 years’ experience in mechanical design 

• Bachelor’s degree in Mechanical Engineering  

• Strong 3D CAD experience 

• Expert level GD&T skills 

Preferred 

• 2 years experience with Solid Edge or other mid-range modeling package 

• 5 years PVD, CVD, or ALD vacuum system design experience 

Why Kurt J. Lesker Company:
Kurt J. Lesker Company is a global leader in vacuum technology and advanced manufacturing, supporting critical industries such as semiconductor, aerospace, medical, and optical. With more than 70 years of innovation, we offer employees the opportunity to contribute to cutting-edge technologies in a collaborative, mission-driven environment. 
 
We offer:

• Competitive compensation 

• Onsite gym, wellness programs, and walking trails 

• Electric vehicle charging stations and sustainability initiatives 

• A collaborative, people-first culture 

Kurt J. Lesker Company 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 status as a protected veteran. KJLC is committed to providing reasonable accommodations for persons with disabilities unless doing so would result in undue hardship. If you need a reasonable accommodation for any part of the employment process, please contact Human Resources at hr@lesker.com or (412) 387-9200. 
#LI-Onsite 

• Minimum 8 years’ experience in mechanical design 

• Bachelor’s degree in Mechanical Engineering  

• Strong 3D CAD experience 

• Expert level GD&T skills 

About Kurt J. Lesker Company

At Kurt J. Lesker Company, our dedication and passion to enabling technology is the cornerstone of innovation. We engineer, design, test, manufacture, install, service and distribute state-of-the-art scientific vacuum systems and components, empowering our clients to overcome complex challenges across a spectrum of industries, including aerospace, semiconductor, medical device, optical and more! Our organizational structure is meticulously designed to foster excellence in vacuum technology, featuring dedicated divisions for Manufacturing, Process Equipment, Materials, and the Vacuum Mart. These divisions are seamlessly integrated with our comprehensive corporate services, including Human Resources, Finance, Supply Chain, Marketing, Sales, Quality, and Information Technology.

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