Sr. Sustaining Test Engineer

About SiTime

SiTime Corporation is the precision timing company. 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 3 billion devices shipped, SiTime is changing the timing industry. For more information, visit 

Job Summary

• As a Sustaining Test Engineer, you are expected to do Test Data Analysis, Provide Testing related dispositions on Manufacturing/Production abnormalities in Final Test and Circuit/Wafer Probing.
• You will drive the HW, Product, Test Program and System Qualification Buy-off to be deployed for Mass Production.
• You will take project initiatives on Test improvements, Test Program revision updates and releases.
• Perform Test Engineering experiments and studies on HW, Product, ATE and Test Program.

It is not necessary to meet all job requirements to be a qualified candidate for the position. 

Responsibilities:

•  Provide solutions and dispositions to Test Engineering abnormalities in a Manufacturing/Production environment.
• Plan and execute qualification and buy-off for but not limited to both new and mature products, HW, ATE System, Test Programs and other Testing related coverage that needs qualification and buy-off.
• Provide Test Data Analysis and documented reports on Buy-off and Qualification data.
• Provide remote and online debug for Product, Test Program, System and HW issues.
• Continuous Line Support for all SiTime products new and production released in addressing Testing factor abnormalities, project improvement and deployments.
• Support NPI to Mass Production Release Testing activities.
• Making sure that OSAT Testing for Final Test and Circuit/Wafer Probing does not have any testing related issues that will result to line-down or output delays.
• Interface with Internal Cross-Functional Team and OSAT personnel.
• Work Travel locally or internationally as needed.

Qualifications & Requirements (Education must be included):   

• Bachelor's or Master's Degree or above in Engineering, Computer, Electrical, Industrial or any related field.
• Experience with Prober and ATE Handler.
• Experience with Final Test Testing and/or Wafer Sort/Circuit Probing.
• Experience on-Line Sustaining for Final Test or Circuit Probe/Wafer Sort in a Product Test Engineer or Test Engineer capacity.
• Experience with ETS-88, ETS-364 or any commercial Testers (LTX, Advantest, uFlex, iFlex etc.).
• Familiar/Knowledgeable with C++ or Python.
• Set-up experience and verification on Testing Hardware e.g. Probe Card, Load Board, Circuit Interface board.
• English communication proficiency is needed. 

Desired Characteristics & Attributes:

• Team Player.
• Resilient and has a strong motivation to grow professionally.
• Fast Learner and Independent.
• Highly motivated. 

At SiTime, we believe great work deserves great rewards. We offer a comprehensive and highly competitive compensation package designed to attract top talent. 

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.

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