Diffusion Engineer

Hopewell Junction, NY, United States • Posted June 24, 2026

Job Type: Full-time
Location: Hopewell Junction, NY
Posted: June 24, 2026
Category: other-general
Application Deadline: June 29, 2026

Role Description

onsemi is seeking a Diffusion Engineer. You will develop and support the manufacturing of 300mm silicon wafers used for Automotive and Consumer applications throughout the world.  You will also provide process engineering support for additional process areas.  In this team-based environment, you will work closely with integration, process and equipment teams to provide robust, quality products to our customers.

**onsemi** (Nasdaq: ON) is driving disruptive innovations to help build a better future. With a focus on automotive and industrial end-markets, the company is accelerating change in megatrends such as vehicle electrification and safety, sustainable energy grids, industrial automation, and 5G and cloud infrastructure. With a highly differentiated and innovative product portfolio, onsemi creates intelligent power and sensing technologies that solve the world’s most complex challenges and leads the way in creating a safer, cleaner, and smarter world.

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