Senior MEMS Production Test Engineer

About SiTime

SiTime is the Precision Timing company. 

Timing is the heartbeat of all electronics, ensuring performance, resilience and scalability. For decades, quartz devices, non-silicon technology, have kept systems in sync, but they struggle in harsher, more demanding environments. MEMS-based Precision Timing delivers greater accuracy, smaller size and resilience. Today, MEMS timing powers over 400 applications, including high-growth ones in AI datacenters, automated driving, industrial and humanoid robots, wearables and IoT.

Our semiconductor MEMS programmable solutions offer a rich feature set that enables customers to differentiate their products with higher performance, smaller size, lower power, and better reliability. With more than 4 billion devices shipped, SiTime is changing the timing industry. For more information, visit:  www.sitime.com.

Job Summary

The Sr. MEMS Production Test Engineer is responsible for ensuring smooth, efficient, and high-quality MEMS wafer-level testing. This role supports day-to-day production activities including prober management, probe card debug and calibration, vendor coordination, MES configuration, test program qualification, and test instruments troubleshooting. The engineer will also design and execute data-driven experiments (DOE) to improve yield, enhance test coverage, and reduce cycle time. This role collaborates closely with manufacturing, quality, product engineering, test development, process and NPI teams to resolve technical issues and continuously optimize production performance.

Responsibilities:

• Support daily production test operations by monitoring test performance, troubleshooting equipment and hardware issues, and ensuring the test line remains fully operational.
• Manage probers, probe cards, test hardware and test programs, including qualification activities, 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 to ensure accurate, efficient, and reliable production execution.
• Develop and manage recipes for defect detection using automated optical inspection (AOI) tools

Qualifications & Requirements:

• BS, MS, or PhD in Electrical Engineering, Mechanical Engineering, Physics, Materials Science, or a related technical field.
• 5+ years of experience in semiconductor, MEMS, or high-volume manufacturing test environments; wafer-level experience strongly preferred.
• Hands-on experience supporting production test operations, including ATE systems, probers, and wafer-level test hardware.
• Experience debugging probe cards, including both cantilever and vertical pin architectures.
• Proven 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.
• Familiarity with MEMS fabrication processes is a plus.
• Experience with wafer sort is a plus.

Desired Characteristics & Attributes:

• A positive attitude and motivated to learn new skills. 
• Strong written and verbal communication skills required.
• Excellent analytical and problem-solving skills.
• Ability to work well with others in a collaborative fast-paced team environment.

Compensation: 

At SiTime, we believe great work deserves great rewards. We offer a comprehensive and highly competitive compensation package designed to attract top talent.  The final offer is determined by factors such as location, experience, education, and training. The final offer is determined by factors such as location, experience, education, and training.

In addition to base salary, this role is eligible for a quarterly bonus tied to the achievement of innovation goals—reflecting our commitment to recognizing meaningful impact. We also offer equity grants, providing a meaningful opportunity to share in the company’s future growth and success.

Benefits offered : 401k plan, health and wellness that includes medical, dental, vision, life, parental leave, legal services, and time off plans.

SiTime is an Equal Opportunity Employer. We treat each person fairly and we do not tolerate discrimination or harassment against anyone on the basis of any protected characteristics, including race, color, religion, national or ethnic origin, sex, sexual orientation, gender identity or expression, age, disability, pregnancy, political affiliation, protected veteran status, protected genetic information, or marital status or other characteristics protected by law. SiTime participates in the E-Verify program.

Learn More about SiTime: Review the Get to Know SiTime section of our career page to explore our culture, values, and what makes us unique. 

• Innovation on Top – Philosophies of Innovation with Rajesh Vashist
• Fabrication Knowledge – An Interview with Rajesh Vashist
• SiTime Corporation – YouTube