Senior Principal Technical Support Engineer

Formfactor

Sr Principal Technical Support Engineer at FormFactor providing technical support for advanced probe card products in semiconductor wafer testing. Collaborates with cross-functional teams to ensure optimal performance and fast issue resolution.

Posted 7/28/2026full-timeLivermore • California • 🇺🇸 United StatesSenior💰 $136,200 - $178,815 per yearWebsite

Core Competencies

Role fit

Core Competencies

Use this summary to align your resume positioning with the role.

Demonstrates expertise in semiconductor test processes and advanced probe card technologies, with a strong focus on diagnosing and resolving technical issues. Capable of providing customer support and guidance on probe card setup, optimization, and new product introductions.

Highest-signal resume keywords

Semiconductor Test ProcessesFormFactor Probe CardsRoot Cause Analysis (RCA)High-Volume Manufacturing (HVM)Mechanical Assembly / Electrical Debug

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills

Electrical DebugMechanical AssemblyWafer Prober OperationYield EngineeringTest OptimizationData AnalysisProcess-Related Issue ResolutionProbe Card SetupAdvanced Nodes KnowledgeCustomer Qualifications Support

Soft Skills

Customer-Facing ExperienceCommunication Skills

Tools & Technologies

Automatic Wafer ProberWafer Test Systems

Industry Keywords

Probe Card PerformanceYield ExcursionsElectrical Continuity IssuesParametric AnomaliesNew Product Introductions (NPI)Field Application Experience

Tech Stack

Tools & technologies

Assembly

About the role

Key responsibilities & impact

Provide expert-level technical support for FormFactor’s advanced probe card products used in semiconductor wafer testing
Serve as a key interface between customers, product engineering, manufacturing, and field service teams
Diagnose and resolve electrical, mechanical, and process-related issues impacting probe card performance
Support customers having Yield excursions, Electrical continuity issues, Contact problems, and Parametric anomalies during wafer sort
Perform root cause analysis (RCA) on probe card failures
Develop deep expertise in FormFactor probe technologies
Provide guidance on Probe card setup and optimization
Support new product introductions (NPI) and customer qualifications
Provide onsite support at customer fabs and OSATs when required
Analyze large datasets from wafer test systems to identify trends and issues

Requirements

What you’ll need

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
Knowledge of semiconductor test processes
Hands-on mechanical ability and wafer prober operation skills
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

Benefits

Comp & perks

medical
dental
vision
life insurance
disability coverage
a 401(k) with company match
employee stock purchase plan (ESPP)
paid time off
quarterly profit-sharing bonuses
flexible spending or savings accounts