Senior Buyer - Pleasanton, CA

The role

The Sr. Buyer will have end-to-end ownership of procurement execution for assigned commodities, suppliers, and Contract Manufacturers. This role ensures material availability, supplier performance, inventory health, and cost effectiveness.

What you will do

• Own the full procurement execution lifecycle for assigned scope.
• Serve as the single point of accountability for supplier and CM execution.
• Negotiate and procure materials, components, equipment, supplies, and services.
• Collaborate with Sourcing teams on supplier selection and negotiations.
• Plan, execute, and monitor purchase orders using MRP, Kanban, and Blanket POs.
• Manage Contract Manufacturers to ensure material readiness and capacity alignment.
• Own inventory execution strategies for assigned materials.
• Monitor supplier and CM execution performance and compliance.
• Identify and deliver execution-driven cost savings and cost-avoidance opportunities.
• Own execution-level procurement KPIs for assigned suppliers and parts.

Required qualifications

• Bachelor’s Degree in Business Administration or equivalent Buyer/ Purchasing experience.
• Minimum 8 years of experience supporting a manufacturing environment.
• Experience in production control, material demand planning, or supply chain management.
• Strong working knowledge of modern ERP/MRP systems.
• Advanced Excel skills (pivot tables, macros, managing large data sets).
• Strong ability to communicate and partner cross-functionally with Engineering, Manufacturing, R&D, Finance, Quality, suppliers, and Contract Manufacturers.
• Highly organized with the ability to manage multiple priorities independently.
• Motivated, detail-oriented, and execution-focused.

Nice to have

• medical device experience

Benefits

• competitive base salary
• variable incentive plan
• Stock options
• 401(k)
• healthcare insurance
• paid vacation

Before you apply

• Legal authorization to work in the United States is required.
• All persons hired will be required to verify their identity and eligibility to work in the United States.

About the company

Calyxo, Inc. is a medical device company headquartered in Pleasanton, California, USA. The company was founded in 2016 to address the profound need for improved kidney stone treatment.