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Salary
≈ $30k – $57k per year (Estimated)
Location
In office (Bucheon)

Confirmed on the employer's own hiring board on Oct 19, 2026. First seen by Alion on Oct 3, 2026. onsemi scores B on the Alion truth index.

Overview
Company
Impact
Profile match
Onsemi is an American semiconductor company that was spun out of Motorola in 1999 and has since narrowed itself from a broad commodity chip supplier into a focused power and sensing business. Its silicon carbide and silicon power devices go into electric vehicle traction inverters, chargers and industrial drives, while its image sensors are used in automotive cameras and industrial vision, and it has deliberately exited lower-margin product lines to concentrate on these markets. Headquartered in Scottsdale, Arizona and listed on Nasdaq, it owns its own silicon carbide substrate manufacturing to secure supply.

ONSEMI is looking to add a strong individual contributor to our Supply and Inventory Planning team. This person can have prior Supply Chain Planning Experience or suitable relevant skills and a demonstrated ability to learn job specifics quickly. The Supply Planner role covers both execution of supply planning and communication of supply status to all of the relevant parties - these include the Business Unit Management, Factory Management, Finance, and other tactical members of the Supply Chain Management team. Balancing Supply against volatile demand and Inventory Objectives requires strong data-handling and analytic skills, attention to details, and crisp, timely communication. A thorough understanding of supply chain basics and general knowledge of semiconductor manufacturing is required.

  • Serve as the Business Unit (BU) supply interface and coordinate with demand planning counterparts to ensure that the plans remain aligned.
  • Oversee wafer starts and make final decisions on starts.
  • Plan, manage, and set targets for inventory and build-category.
  • Coordinate the allocation process (BUs make decisions) by suggesting an allocation based on BU strategy, setting up allocation in planning systems and monitoring allocation performance until close.
  • Execute product transfers per BU, manage suggested EOL devices.
  • Drive strategic builds and factory filler.
  • Manage lead time by providing recommendations based on system calculated lead times, Market trends and coordinating with BU to gather decisions what gets published to market.
  • Provide Beginning of Quarter (BOQ) supply input/coordination, advocate for BU and drive supply reviews and Product group and Division levels.
  • Work with procurement and external manufacturing on negotiations (or re-negotiations) for external capacity.

Requirement

  • BS/BA in Supply Chain Management (or related field)
  • 0-3 years of SCMS work experience, prior experience in tactical planning roles
  • Excellent communication and coordination skills.
  • Ability to work under pressure and meet deadlines.
  • General understanding of the Sales and Operations Planning processes

Skills

  • Microsoft Office (Excel, Word, Outlook, PowerPoint)
  • End to end Supply Chain Knowledge/Understanding
  • Excel at decision-making, direction, and execution to results
  • Exhibit strong communication and listening skills
  • Ability to organize and direct strategic activity at the global level
  • Customer service oriented
  • Program/Project Management (PMP is a plus, not essential)
  • Semiconductor experience is highly desired
  • Advanced data mining skills (SQL, database skills, advanced MS Excel skills like Macro, VBA, etc.) are a strong plus
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