Mechanical Engineer, Sr.

About MDC Precision

MDC Precision is a leading global provider of high-quality vacuum technology, precision-engineered components, and advanced manufacturing solutions. With a history dating back to 1975, MDC serves customers across semiconductor, aerospace, research, energy, and advanced technology industries. Our capabilities include high- and ultra-high-vacuum components, precision weldments, gas delivery systems, ceramic-to-metal sealing solutions, and custom-engineered assemblies. We are committed to engineering excellence, product innovation, and reliable customer solutions.

Position Summary

MDC Precision is seeking an experienced Senior Mechanical Engineer to join our Hayward engineering team. This role leads design, development, and manufacturing support for precision-engineered products, including gas delivery assemblies, welded components, and vacuum systems primarily serving the semiconductor industry.

The engineer will develop product designs, manufacturing documentation, and customer-specific solutions; drive continuous improvement; collaborate with cross-functional teams; and mentor junior technical colleagues while balancing quality, cost, and delivery objectives.

Mechanical Design & Product Development

• Design and modify mechanical components, assemblies, gas line weldments, and vacuum products to meet customer and manufacturing requirements.
• Create and maintain 3D models, engineering drawings, bills of materials (BOMs), and technical documentation.
• Evaluate customer RFQs and specifications and develop practical, cost-effective engineering solutions.
• Lead engineering change requests (ECRs) and support engineering change orders (ECOs).
• Apply material selection, strength of materials, tolerance analysis, and design-for-manufacturability principles.
• Review engineering drawings and specifications for accuracy and compliance.

Manufacturing Engineering & Production Support

• Develop and improve manufacturing routers, work instructions, assembly procedures, and production documentation.
• Partner with Operations to optimize fabrication, welding, assembly, and production workflows.
• Design or improve tooling, fixtures, and production support equipment.
• Troubleshoot manufacturing issues, improve yields, and reduce scrap and rework.
• Support time studies, work cell layouts, and productivity initiatives.
• Develop standardized assembly and test procedures with visual instructions and Lean methods.

Continuous Improvement & Quality

• Identify and implement improvements in product performance, quality, process efficiency, and cost.
• Investigate manufacturing issues with Quality; perform root cause analysis and corrective action.
• Participate in Material Review Board (MRB) activities and disposition recommendations.
• Improve first-pass yield and cycle time, and assess the impacts of engineering changes.

Cross-Functional Collaboration & Technical Leadership

• Collaborate with Sales, Manufacturing, Quality, Purchasing, and Supply Chain on customer and business requirements.
• Support quotations, design reviews, and new product introduction.
• Work with suppliers on specifications, design changes, manufacturability, and cost improvements.
• Prioritize RFQs, drawing updates, router revisions, and engineering assignments.
• Mentor junior engineers, designers, and drafting personnel.
• Participate in design reviews, production planning, and improvement meetings.