Subcon Sourcing Buyer

Onsemi; San Jose, Northern (CA, KY); Hybrid; USD 90,000 - 130,000; Full time

Job summary

onsemi is seeking a self-driven Subcon Buyer in San Jose, CA. You will secure external manufacturing service needs by negotiating with primary subcon suppliers and supporting BE strategic sourcing initiatives.

You will interact with Business Units, Production Planning, and GSCO teams to ensure reliable capacity at competitive prices, while traveling up to 25% as needed.

Qualifications

• BS degree in relevant field required.
• 5+ years in semiconductor sourcing preferred.
• Experience with Procure-to-Pay processes and sourcing tools.

Responsibilities

• Own supplier negotiations with key subcon suppliers.
• Support commercial needs of business units in sourcing.
• Lead procurement activities to optimize P2P processes.
• Coordinate between Commercial Team and Sourcing Operations.
• Monitor supplier performance and drive improvements.
• Lead strategic selection of foundries and back-end suppliers.
• Collaborate with external manufacturing teams to ensure capacity and costs.

Skills

Supplier management

Strategic thinking

Project management

Multitasking

Communication

English fluency

Education

BS in Supply Chain, Engineering, or Business/Marketing

Tools

Oracle-based systems

Job description

onsemi is seeking a self-driven and motivated professional to join the External Manufacturing Sourcing team, located in San Jose, California, USA. As a Subcon Buyer, you will work primarily with the assigned Suppliers and Business Units products & Operations managers to secure our external manufacturing service needs. We operate in a fast-paced dynamic environment that requires a matrix organization approach to managing people and processes.

Responsibilities

The successful candidate will have the opportunity to:

• Supplier management; Own commercial interface & Supplier negotiations with key subcon suppliers.
• Business unit support; Support commercial needs of business units for all BE Strategic Sourcing needs.
• Lead group wide sourcing operations activities to optimize all steps within the Procure-to-Pay process, maximizing the capabilities within onsemi sourcing systems.
• Be the focal point for integration between the Commercial Team and Sourcing Operations Teams to delivery best in class results.
• Monitor supplier performance & KPI’s including action plans in key Procurement pillars to include; driving Value add/productivity, Delivery, Quality and Technology.
• Project management; Drive projects as both project leader and/or member supporting Strategic priorities of Growth, People and Execution.
• Promote onsemi values through actions and promote positive image of Procurement image with internal and external partners.
• Lead the strategic selection and commercial management of Foundries and other backend suppliers.
• Work with external manufacturing, production planning and GSCO Team Members to ensure quality reliable capacity is in place at competitive prices to support strategic goals.
• Positively influence onsemi business strategy with make/buysupport and external source selection decisions.

Qualifications

• BS degree in Supply Chain, Engineering, or Business/Marketing from an accredited university is required.
• Must be willing to travel domestic and international up to 25%.
• Candidates with 5+years of experiencefrom the semiconductor industry with a focus on sourcing systems are preferred.
• Deep expertise in Sourcing Operations covering Procure-to-Pay scope along with deep system knowledge, preferably on Oracle based systems.
• Ability to handle significant multi-tasking requirements simultaneously and to prioritize on key actions.
• Action oriented with ability to deliver results that make significant progress on strategic initiatives.
• Ability to work independently with minimal supervision or sometimes direction on specific what task needs to be accomplished.
• Ability to prepare and effectively communicate strategy with multi-functional business partners (Technology, Quality, MFG, Supply Chain Planning/Ops)
• Fluency (written and oral) in English required; additional language(s) would be an additional benefit.

About Us

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.

More details about our company benefits can be found here:

We are committed to sourcing, attracting, and hiring high-performance innovators, while providing all candidates a positive recruitment experience that builds our brand as a great place to work.

onsemiis an Equal Opportunity Employer.

All qualified applicants will receive consideration for employment without regard to race, ethnicity, color, religion, ancestry, national origin, age, marital status, pregnancy, sex, sexual orientation, physical or mental disability, medical condition, genetic information, military or veteran status, gender identity, gender expression, or any other protected category under applicable federal, state, or local laws.

If you are an individual with a disability and require a reasonable accommodation to complete any part of the application process, or are limited in the ability or unable to access or use this online application process and need an alternative method for applying, you may contact [e-mail] for assistance.

Job Info

• Job Identification 2506333
• Job Category Manufacturing
• Posting Date 08/19/2026, 09:10 PM
• Degree Level Bachelors
• Job Schedule Full time
• Locations 150 Rose Orchard Way, San Jose, CA, 95134, US