Backend (BE) / OSAT Sourcing Buyer

onsemi
Zhubei +1 more
On-site

Who this role is best for

Candidates with semiconductor industry experience and supplier negotiation skills will find this strategic sourcing role in a matrix organization setting in Zhubei, Taiwan.

Best fit for

  • Candidates with semiconductor industry experience and supplier negotiation skills will find this strategic sourcing role in a matrix organization setting in Zhubei, Taiwan.
    — “three or more years of experience in the semiconductor industry, preferably in OSAT sourcing”
  • Individuals with strong cross-functional collaboration experience and a focus on strategic supplier decisions
    — “Serve as the focal point between Commercial Sourcing, External Manufacturing Operations, Planning, Quality, Engineering, and Finance”
  • Professionals who can independently manage sourcing processes and deliver measurable cost and performance outcomes
    — “Action-oriented, with demonstrated ability to deliver measurable results on cost, supply assurance, supplier performance”

Things to consider

  • This role requires up to 25% international and domestic travel, which may impact work-life balance.
    — “Must be willing to travel domestically and internationally up to 25%”
  • Fluency in English is mandatory, and Mandarin is strongly preferred, which may limit candidates without these language skills.
    — “Fluency in written and spoken English is required; Mandarin Chinese is strongly preferred.”

How to stand out

  • Emphasize experience in OSAT sourcing and strategic supplier selection in your resume and interviews.
    — “Lead the strategic selection and commercial management of OSATs and other backend suppliers”
  • Demonstrate your understanding of backend cost drivers, such as package materials and test platforms.
    — “Working knowledge of semiconductor backend cost drivers, including package materials, substrates and leadframes”
  • Showcase your experience with the Procure-to-Pay process, including RFQs and contract support.
    — “Lead sourcing activities across the Procure-to-Pay process, including RFQs, cost analysis, purchase order execution”
  • Include examples of how you've influenced business strategy through supplier decisions and platform selections.
    — “Influence onsemi business strategy through make/buy analysis, OSAT source selection, package and test platform decisions”
Pace · Fast PacedCollaboration · HighAutonomy · MediumDecision Impact · Team

Derived from job-description analysis by Serendipath's career intelligence engine.

What success looks like

  • secure competitive, reliable assembly, packaging, and test services
  • deliver best-in-class business results
Typical background
BS degree in Supply Chain, Engineering, Business, or a related field3+ years of experience in the semiconductor industry

Skills & requirements

Required

Supplier ManagementNegotiationsCost AnalysisPurchase Order ExecutionContract SupportSourcing-system DisciplineMonitor Supplier PerformanceLead Sourcing ActivitiesManage Multiple PrioritiesAnalyze Commercial Data

Preferred

New-product IntroductionsSupplier QualificationsCapacity Expansions

Stack & domain

Semiconductor IndustryOSAT SourcingBackend ManufacturingAssemblyPackagingTestSubcontract OperationsCommunicationProblem-solvingTeamworkSemiconductor

About the role

Original posting from onsemi

onsemi is seeking a self-driven and motivated professional to join the External Manufacturing Sourcing team, located in Zhubei, Taiwan Region. As a Backend (BE) / OSAT Sourcing Buyer, you will work primarily with assigned outsourced semiconductor assembly and test suppliers, Business Units, and Operations teams to secure competitive, reliable assembly, packaging, and test services. We operate in a fast-paced, dynamic environment that requires a matrix organization approach to managing suppliers, stakeholders, and processes.

The successful candidate will have the opportunity to: 

Supplier management: Own the commercial interface and lead negotiations with key OSAT, assembly, packaging, and test suppliers.

Business unit support: Address the commercial and sourcing needs of Business Units for backend assembly, packaging, and test services.

Lead sourcing activities across the Procure-to-Pay process, including RFQs, cost analysis, purchase order execution, contract support, and sourcing-system discipline.

Serve as the focal point between Commercial Sourcing, External Manufacturing Operations, Planning, Quality, Engineering, and Finance to deliver best-in-class business results.

Monitor supplier performance and KPIs, including cost and productivity, delivery, cycle time, quality, capacity, technology readiness, and corrective action plans.

Lead and support projects aligned with strategic priorities for growth, people, and execution, including new-product introductions, supplier qualifications, transfers, and capacity expansions.

Promote onsemi values through actions and maintain a positive image of Procurement with internal and external partners.

Lead the strategic selection and commercial management of OSATs and other backend suppliers across assembly, advanced packaging, final test, wafer sort, and related services.

Work with External Manufacturing, production planning, engineering, quality, and SCM team members to ensure qualified and reliable assembly and test capacity is available at competitive cost to support strategic goals.

Influence onsemi business strategy through make/buy analysis, OSAT source selection, package and test platform decisions, dual-sourcing strategies, and supplier capability roadmaps.

BS degree in Supply Chain, Engineering, Business, or a related field from an accredited university is required.

Must be willing to travel domestically and internationally up to 25% to support supplier engagements, business reviews, qualifications, and escalations.

Three or more years of experience in the semiconductor industry, preferably in OSAT sourcing, backend manufacturing, assembly, packaging, test, or subcontract operations.

Working knowledge of semiconductor backend cost drivers, including package materials, substrates and leadframes, assembly processes, test platforms, labor, yield, cycle time, equipment utilization, and capacity.

Action-oriented, with demonstrated ability to deliver measurable results on cost, supply assurance, supplier performance, and strategic initiatives.

Ability to work independently with minimal supervision while exercising sound judgment on priorities, supplier issues, and escalation paths.

Ability to manage multiple priorities simultaneously, analyze commercial data, and focus on the actions with the greatest business impact.

Fluency in written and spoken English is required; Mandarin Chinese is strongly preferred.

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:

https://www.onsemi.com/careers/career-benefits

Source: onsemi careers

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