Sr Principal Field Service Engineer

Forming Our Future together Form Factor, Inc. (NASDAQ: FORM), is a leading provider of essential test and measurement technologies along the full semiconductor product life cycle — from characterization, modeling, reliability, and design de‑bug, to qualification and production test. Semiconductor companies rely upon Form Factor’s products and services to accelerate profitability by optimizing device performance and advancing yield knowledge. The company serves customers through its network of facilities in Asia, Europe, and North America.

Rooted in our core values — Focus on the Customer, Ownership & Accountability, Respectfully & Effectively Communicate, and Motivate & Develop People — we foster an environment where diverse perspectives are not only welcomed but celebrated. Everyone can make an impact here. Whether it's improving products, supporting customers, or positively influencing peers and the community, the contributions of our people matter.

The regular hours for this position are day shift.

The Sr. Principal Field Service Engineer serves as a senior technical expert responsible for the installation, qualification, troubleshooting, optimization, maintenance, and support of Form Factor semiconductor probe card systems and related test interface solutions. This role partners closely with semiconductor manufacturers, wafer test engineering teams, Product Engineering, Manufacturing, and Quality organizations to ensure product performance, reliability, and customer satisfaction. As an advanced professional individual contributor, the Sr.

Principal Field Service Engineer independently manages complex technical issues, drives root cause investigations, supports new product introductions, and provides expert‑level guidance to customers and internal stakeholders. This position plays a critical role in improving product performance, strengthening customer relationships, and supporting business growth through exceptional technical service. The role requires extensive domestic and international travel to customer sites.

Perform preventive and corrective maintenance activities at customer sites to ensure optimal product performance and reliability. Install, configure, qualify, and support Form Factor probe card systems, accessories, and related test interface products, including final system acceptance according to established procedures. Respond to customer service requests and provide timely technical support through onsite visits, telephone, email, and remote diagnostic tools. Complete service reports, work orders, and other required documentation accurately and in accordance with company standards.

Serve as the primary technical contact for assigned customer accounts and strategic customer programs. Maintain a high level of customer satisfaction through professional communication, responsiveness, and technical expertise.

Diagnose and resolve complex probe card performance, hardware, electrical, mechanical, and process‑related issues in customer production environments. Lead onsite and remote troubleshooting efforts using structured problem‑solving methodologies and engineering best practices. Drive containment actions, corrective actions, and long‑term solutions to minimize customer impact and prevent recurrence. Analyze field performance data, identify trends, and recommend product or process improvements. Support field investigations associated with customer‑reported issues, product returns, and reliability concerns.

Partner with Product Engineering, Manufacturing Engineering, Quality, Reliability, and Program Management teams to improve product performance, serviceability, and reliability. Provide voice‑of‑customer feedback and field performance insights to support product enhancements and future development efforts. Support new product introductions by assisting with field readiness, customer evaluations, qualifications, and early production deployments. Identify opportunities to improve service delivery, operational…