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Lumentum

Senior Buyer (Direct Material)

Thailand - Pathumthani (Navanakorn)

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hirly's read of this role

Role family
Supply chain
Seniority
Senior
Country
TH
Work mode
On-site / unstated
First seen by hirly
26 Oct 2026

Derived automatically from the posting. Upload your resume above to see how the role scores against it.

the posting

  • It's fun to work in a company where people truly BELIEVE in what they're doing!
  • We're committed to bringing passion and customer focus to the business.

If you like wild growth and working with happy, enthusiastic over-achievers, you'll enjoy your career with us!

Procurement Execution & Order Management

  • Purchase Order Processing: Convert requisitions into Purchase Orders (POs), manage internal approval workflows, and issue POs to vendors.
  • Delivery & Fulfillment Tracking: Secure order confirmations, maintain system promise dates in Oracle, and track shipments through inspection and inventory placement.
  • Order Modifications & Exceptions: Manage reschedules and cancellations based on exception reporting, collaborating with Global Supply Management (GSM) to negotiate non-standard changes.

Supply Chain Planning & Demand Allocation

  • Forecast Alignment: Review weekly Material Requirements Planning (MRP) outputs to adjust open orders to true demand.
  • Dual-Source Allocation: Execute allocation strategies for dual-sourced components, directing demand splits to target suppliers.
  • Shortage Mitigation: Track critical shortages and present weekly risk mitigation reports to executive materials leadership.

Strategic Supplier & Master Data Governance

  • Master Data Management: Maintain item master attributes within Product Data Hub (PDH), including pricing, minimum order quantities (MOQs), Approved Vendor Lists (AVLs), and lead times.
  • Quarterly Price Adjustments: Coordinate with Finance and Global Supply Management (GSM) to update quarterly pricing matrices, contract manufacturing quotes, and volume adjustments.
  • Supplier Onboarding & Evaluation: Facilitate new supplier onboarding in Ariba and submit quarterly Supplier Business Reviews (SBRs) evaluating delivery and operational responsiveness.

Financial Operations & Supplier Quality

  • Invoice & Payment Resolution: Manage Accounts Payable invoice holds, oversee Transcepta portal adoption, and process pre-payments.
  • Defect & Returns Management (RMA): Partner with Supplier Quality Engineering (SQE) to process Return Material Authorizations (RMAs), securing component replacements or credit notes.
  • Reporting & Compliance: Maintain weekly excess inventory tracking and align operational performance with organizational targets (Hoshin KPIs).

Qualifications

  • 5+ years Global Purchasing experience and related disciplines
  • Bachelor’s degree in Business Administration or a related field with major coursework in Supply Chain management or equivalent
  • Good English communication skill
  • Proficient in Ms. Office, especially Ms. Excel –manipulating data, exporting and extracting data for the purpose of report creation.
  • Strong communication, problem solving, and coordinating skill.
  • Able to work under pressure.

We are an equal opportunity employer and value diversity at our company.

We do not discriminate on the basis of race, religion, color, national origin, sex, gender, gender expression, sexual orientation, age, marital status, veteran status, or disability status.

We will ensure that individuals with disabilities are provided reasonable accommodation to participate in the job application or interview process, to perform essential job functions, and to receive other benefits and privileges of employment.

Please contact us to request accommodation.

Original posting on Lumentum's site ↗

Listed on hirly, a job board. hirly is not the employer: Lumentum is hiring for this role.

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