Process Engineer- CNC

From smartphones to solar panels, innovative technology is needed to create the devices we use every day. Silfex’s silicon components help make that technology a reality.

Silfex Inc., A Lam Research Company is the leading provider of precision silicon components used to make and operate semiconductor tools, which enable the trillion-dollar global electronics industry. Our company’s products are integral to the semiconductor equipment and optical markets. The outstanding team at Silfex makes that possible – through our people, we are advancing the world.

The impact we have on the world is made possible by focusing on our people. So we recognize and celebrate our teams’ achievements. We strive to create an inclusive and diverse culture where everyone’s contribution and voice has value. We evaluate and evolve our offerings, so our people receive the support and empowerment to do meaningful things for their lives, careers, and communities.

At Silfex, our people make amazing things possible. That’s why we invest in you throughout the phases of your life with a comprehensive set of outstanding benefits that start on your first day of employment.

Discover more at Lam Benefits.

Essential Function:
The position is responsible for developing, optimizing, and controlling CNC machining processes for silicon and other brittle materials to ensure all dimensional, cosmetic, and performance requirements for semiconductor applications are met. The engineer must understand complex manufacturing workflows, CNC equipment and programming, material‑removal technologies, tooling, and consumables in support of Silfex operations. The role focuses on managing and controlling machining processes to meet customer specifications with strong emphasis on safety and quality.

This position serves as the company’s subject matter expert for CNC machining and leads the development, implementation, and qualification of machining processes required to support customer needs.

• Develops, sustains, and optimizes CNC machining processes, tooling, and equipment for silicon and brittle materials.
• Provides expertise in critical manufacturing processes, including grinding and advanced CNC machining operations.
• Uses SPC and data‑driven methods to stabilize processes, elevate capability, and drive continuous improvement.
• Leads root cause analysis, DOEs, and measurement‑based investigations; converts data into clear, actionable plans.
• Maintains and updates FMEAs for assigned equipment and processes.
• Authors technical documentation including Operating Procedures, Work Instructions, and Test Plans.
• Applies Lean manufacturing and problem‑solving methodologies.

• Knowledgeable to support CNC, demonstrates basic understanding of G/M‑code programming.
• Supports equipment performance improvement and capability enhancement across functional groups.

• Leads projects from initiation through closure while managing multiple priorities.
• Supports new and existing product development from a technical perspective.
• Provides cross‑functional collaboration with Engineering, Operations, Quality, and Maintenance to improve quality, delivery, and cost.
• Serves as a technical problem solver, driving improvements that enhance safety, reduce scrap, and improve process robustness.

• Self‑driven, confident, and accountable professional with strong self‑awareness.
• Works effectively both independently and collaboratively with strong attention to detail.
• Communicates clearly, professionally, and proactively across teams and organizational levels.

• Bachelor’s Degree in Mechanical Engineering or related discipline plus 2‑3 years’ experience.
• In lieu of degree, 10+ years of relevant manufacturing experience, preferably machining or precision CNC operations, and problem‑solving experience.

• Comprehensive understanding of shop operations and manufacturing processes.
• Proficient in interpreting engineering drawings and GD&T.
• Experience with Lean/6‑Sigma problem‑solving methods.
• Ab…