Sr. Mechanical Engineer; Vacuum Systems)(E

Position: Sr. Mechanical Engineer (Vacuum Systems)(E)
** Company Overview
** KLA is a global leader in diversified electronics for the semiconductor manufacturing ecosystem. Virtually every electronic device in the world is produced using our technologies. No laptop, smartphone, wearable device, voice-controlled gadget, flexible screen, VR device or smart car would have made it into your hands without us. KLA invents systems and solutions for the manufacturing of wafers and reticles, integrated circuits, packaging, printed circuit boards and flat panel displays.

The innovative ideas and devices that are advancing humanity all begin with inspiration, research and development. KLA focuses more than average on innovation and we invest 15% of sales back into R&D. Our expert teams of physicists, engineers, data scientists and problem-solvers work together with the world’s leading technology providers to accelerate the delivery of tomorrow’s electronic devices. Life here is exciting and our teams thrive on tackling really hard problems.

There is never a dull moment with us.
** Job Description/Preferred Qualifications
**** Sr Mechanical Engineers are core to KLA’s technology, while we do not currently have an opening, we are always building our Sr Mechanical Engineering talent community, we are interested in learning about your background.
**** Apply to this posting for Future Opportunities with KLA.
**** Role Summary
** KLA is launching its most advanced reticle inspection tool, built on a multi‑zone, ultra‑clean vacuum (UCV) architecture. As a Senior Vacuum Architect, you will own the end‑to‑end vacuum operation scheme—from architecture and contamination control strategy to pump‑down/vent/transfer sequencing, interlocks, and factory acceptance criteria. You will lead cross‑functional design reviews, translate platform requirements into subsystem specifications, and ensure the vacuum system enables world‑class optical performance, reliability, and high‑volume manufacturability.

(Aligned to the internal Vacuum System Design Review process and architecture-level responsibilities for a designated Vacuum System Architect.)
** Responsibilities
* ** Lead the mechanical design, integration, and validation of complex, multi‑chamber subsystems, ensuring structural stability, precision performance, and robust contamination control.
* Design and develop ultra‑clean vacuum system hardware, including chamber structures, interfaces, materials/finishes, seals, and internal components, applying UCV principles such as low‑out gassing materials, precision cleaning requirements, and contamination‑minimizing geometries.
* Develop mechanical concepts and detailed designs for chambers, frames, interfaces, mounts, enclosures, and precision mechanisms; create drawings, specifications, and requirements for cross‑functional teams.
* Drive structural, thermal, fluid, and vibrational analyses to optimize component performance and system stability.
* Collaborate closely with optics, metrology, electrical, controls/PLC, software, manufacturing, and service teams to ensure subsystem compatibility and seamless system‑level integration.
* Support vacuum‑related elements across chambers (e.g., main chamber, stage chamber, transfer chamber, etc.) by defining interfaces, mechanical constraints, and performance requirements that integrate with overall system design.
* Contribute to the development and documentation of vacuum operation schemes (pump‑down, roughing, purge, vent, bake/clean cycles), and partner with Controls/SE on interlocks and sequencing.
* Establish and maintain contamination‑control strategies—including materials selection, cleanliness/handling guidelines, and UCV‑grade component practices—working with Materials Engineering and Supply Chain to evaluate suppliers.
* Perform first‑order and detailed analyses for pumping configurations, conductance effects, and subsystem‑level performance impacts; collaborate with vacuum specialists as needed for deeper modeling.
* Lead mechanical and system‑level design reviews (CDR, DDR), ensuring design requirements flow correctly to partner teams (mechanical, electrical, opto‑mechanical, metrology, EFEM/loader, source).
* Own integration of chambers…