> Markdown version of [/jobs/ext/1486131-sr-principal-technical-support-engineer](https://www.wearedevelopers.com/jobs/ext/1486131-sr-principal-technical-support-engineer). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Sr Principal Technical Support Engineer - **Company:** FormFactor - **Location:** Livermore, CA, United States - **Experience:** Expert - **Salary:** $136,200.0 - $178,815.0 - **Contract:** Permanent contract - **Skills:** Data Analysis, Big Data, Software Debugging, Micro Electro-Mechanical Systems (MEMS), Microsoft Office - **Published:** July 29, 2026 - **Apply:** https://www.indeed.com/viewjob?jk=388f80272a38b294 ## About the Role The ideal candidate combines deep knowledge of semiconductor test processes, probe card technology, and strong customer engagement skills. Hands-on mechanical ability and wafer prober operation skills for occasional on-site customer support is highly desirable. Ability to speak Mandarin or Korean is a plus., * Experience with FormFactor probe cards or similar technologies. * Knowledge of advanced nodes (e.g., FinFET, 5nm/3nm processes). * Experience supporting high-volume manufacturing (HVM). * Familiarity with yield engineering and test optimization. * Prior field application or customer-facing experience. * Automatic Wafer Prober user experience. * Hands-on mechanical assembly / electrical debug experience. Skills: Analytical Analysis, Clean Room Environment, Communication, Customer-Focused, Data Analysis Tools, Debugging, Electrical Measurements, Korean Language, Mandarin Chinese Language, Microsoft Office, Probe Cards, Probe Stations, Problem Solving, Semiconductors, Wafer Probing, Wafer Sort, Working in a Fast-Paced Environment Education & Experience: Minimum of 8 years of related experience with a Bachelor's degree; or 6 years and a Master's degree; or a PhD with 3 years experience; or equivalent experience | Required ## Description The Sr Principal Technical Support Engineer for Probe Cards provides expert-level technical support for FormFactor's advanced probe card products used in semiconductor wafer testing. This role serves as a key interface between customers, product engineering, manufacturing, and field service teams to ensure optimal performance, fast issue resolution, and continuous product improvement., * Provide technical support for probe card products in production environments * Diagnose and resolve electrical, mechanical, and process-related issues impacting probe card performance * Support customers having Yield excursions, Electrical continuity issues, Contact problems (MEMS probe alignment, wear, contamination), and Parametric anomalies during wafer sort. * Act as primary escalation points for complex technical issues. Failure Analysis & Debug Perform root cause analysis (RCA) on probe card failures using: * ATE (Automated Test Equipment) data. * Electrical measurements. * Microscopy and inspection tools. * Interpret wafer sort data to identify probe-related anomalies. * Collaborate with FA lab to drive corrective actions. Product & Process Expertise * Develop deep expertise in FormFactor probe technologies (e.g., MEMS, cantilever, vertical probes). * Provide guidance on: Probe card setup and optimization, Overdrive, contact force, and cleaning cycles, and Alignment procedures and maintenance practices. * Support new product introductions (NPI) and customer qualifications. Cross-Functional Collaboration * Work closely with Product engineering (design improvements), Manufacturing (process feedback, yield learning), and Field service teams (onsite troubleshooting). * Drive corrective and preventive actions (CAPA). * Participate in engineering change requests (ECR/ECO). Onsite & Remote Support * Provide onsite support at customer fabs and OSATs when required * Conduct technical reviews and troubleshooting sessions with customers * Deliver training on probe card operation, maintenance, and best practices Data Analysis & Reporting * Analyze large datasets from wafer test systems to identify trends and issues * Create detailed technical reports, dashboards, and failure summaries * Track key metrics such as Contact resistance, Yield loss attributable to probe cards, and MTBF (Mean Time Between Failures). ## Related Videos - [The Billion Dollar Machine: First Time Right.](https://www.wearedevelopers.com/videos/393-the-billion-dollar-machine-first-time-right) - [Alibaba Big Data and Machine Learning Technology](https://www.wearedevelopers.com/videos/37-alibaba-big-data-and-machine-learning-technology) - [Data Science in Retail](https://www.wearedevelopers.com/videos/586-data-science-in-retail) - [The Innovation Formula: Fast Prototyping, Data Analysis, and Real User Insights](https://www.wearedevelopers.com/videos/1421-the-innovation-formula-fast-prototyping-data-analysis-and-real-user-insights) - [Strange New Worlds: shaping the future of the digital age](https://www.wearedevelopers.com/videos/677-strange-new-worlds-shaping-the-future-of-the-digital-age) - [PySpark - Combining Machine Learning & Big Data](https://www.wearedevelopers.com/videos/44-pyspark-combining-machine-learning-big-data) ## Related Articles - [Where To Find Software Engineering Jobs](https://www.wearedevelopers.com/magazine/396-where-to-find-software-engineering-jobs) - [Fully Remote Software Engineer Jobs](https://www.wearedevelopers.com/magazine/447-fully-remote-software-engineer-jobs) - [Software Engineer Career: Things You Should Know](https://www.wearedevelopers.com/magazine/143-software-engineer-career-things-you-should-know) - [Dev Digest 121 - AI goes offline](https://www.wearedevelopers.com/magazine/456-dev-digest-121-ai-goes-offline) - [Welcome to Switzerland](https://www.wearedevelopers.com/magazine/4-welcome-to-switzerland) - [Where to Find Entry-Level Software Engineering Jobs](https://www.wearedevelopers.com/magazine/397-where-to-find-entry-level-software-engineering-jobs)