Sr. MEMS Production Test Engineer

SiTime Corporation•Santa Clara, CA

About The Position

The Sr. MEMS Production Test Engineer ensures smooth, efficient, and high-quality MEMS wafer-level testing. The role supports day-to-day production, including prober management, probe-card debugging and calibration, vendor coordination, MES configuration, test-program qualification, and troubleshooting test instruments. It also designs and executes data-driven experiments to improve yield, enhance test coverage, reduce cycle time, and optimize production performance. The engineer works closely with manufacturing, quality, product engineering, test development, process, and NPI teams to resolve technical issues and drive continuous improvement.

Requirements

BS, MS, or PhD in Electrical Engineering, Mechanical Engineering, Physics, Materials Science, or a related technical field.
At least 5 years of experience in semiconductor, MEMS, or high-volume manufacturing test environments; wafer-level experience is strongly preferred.
Hands-on experience supporting production test operations, including ATE systems, probers, and wafer-level test hardware.
Experience debugging probe cards, including cantilever and vertical pin architectures.
Proficiency in developing and automating test programs using C#, LabVIEW, or Python.
Strong knowledge of Statistical Process Control (SPC), yield analysis, and wafer probe/test methodologies.
Strong written and verbal communication skills.
Excellent analytical and problem-solving skills.
Ability to work collaboratively in a fast-paced team environment.
Positive attitude and motivation to learn new skills.

Nice To Haves

Familiarity with MEMS fabrication processes.
Experience with wafer sort.
Wafer-level testing experience is strongly preferred.

Responsibilities

Support daily production test operations by monitoring test performance, troubleshooting equipment and hardware issues, and keeping the test line operational.
Manage probers, probe cards, test hardware, and test programs, including qualification, maintenance scheduling, and failure analysis.
Coordinate with vendors to resolve equipment issues, implement test improvements, and manage spare parts and service logistics.
Maintain, optimize, and validate test programs; collaborate with design and product engineering teams to improve test coverage and yield.
Design and run DOE experiments to improve yield, reduce cycle time, and support continuous improvement initiatives.
Maintain and enhance MES workflows for accurate, efficient, and reliable production execution.
Develop and manage recipes for defect detection using automated optical inspection (AOI) tools.