Senior Buyer
Inertia
Posted: April 1, 2026
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Quick Summary
Join our fast-paced, high-growth startup as a Senior Buyer, where you'll support procurement activities across the company, manage supplier relationships, and ensure on-time delivery of critical materials and services. This is an ideal role for someone eager to grow and thrive in a mission-driven environment.
Required Skills
Job Description
Overview:
We are seeking a highly motivated Senior Buyer to join our Supply Chain team. In this role, you will support procurement activities across the company, manage supplier relationships, and ensure on-time delivery of critical materials and services. This position is ideal for someone hungry to grow, eager to learn, and ready to thrive in a fast paced, high-growth, mission-driven company. This is a full-time position onsite in Livermore, CA. Join us if you're looking for:
• Opportunity for Growth: Be part of a mission-driven startup with opportunities to develop your skills and advance your career. Gain hands-on experience in procurement and supply chain operations.
• Fast-Paced Environment: Work on cutting-edge technology with a dynamic, innovative team.
Primary Responsibilities:
• E2E Purchase Order Management: Create, issue, and manage purchase orders to meet R&D, Services and overall program needs, including delivery verification and invoice processing support. Ability to create and review RFx documents as necessary.
• Supplier Management: Maintain relationships with suppliers, including vendor setup, monitor performance, and resolve issues related to delivery, pricing, and quality.
• Problem Solving: Quickly resolve supply chain disruptions, delivery delays, and quality issues to keep projects on track.
• Order Tracking: Monitor and expedite orders to meet deadlines and development schedules.
• Cross-Functional Collaboration: Partner with Engineering, Manufacturing, Finance, and Program teams to align procurement responsibilities with company goals.
• Data & Process Management: Maintain accurate records, track procurement KPIs, and identify opportunities to streamline processes.
Required Qualifications:
• Bachelor’s degree in supply chain, engineering, business, or related field
• 5+ years of supply chain experience, including strategic sourcing or technical procurement
• Ability to read technical drawings, safety data sheets etc.
• Proficiency in Excel; experience with ERP systems (e.g., Coupa, SAP, Oracle)
Preferred Qualifications:
• Strong organizational and time-management skills.
• Excellent communication and negotiation abilities.
• Analytical mindset with attention to detail and problem-solving skills.
Salary & Benefits:
• The base salary range for this role is $135,000 - $165,000; The pay range provided is an estimated base range for this role. Exact compensation may vary based on skills, experience, and education.
• We offer market-competitive compensation and an excellent benefits program, including Medical, Dental, and Vision plans, company-paid holidays, matching 401k, and more!
About Inertia:
Inertia is taking the most direct, scientifically-proven path to commercializing fusion, leveraging the only successful achievement of fusion ignition, using a process that was pioneered at the U.S. Department of Energy’s (DOE) Lawrence Livermore National Laboratory (LLNL). With groundbreaking innovation, transformative technology, and multi-year investment, Inertia is committed to commercializing fusion energy in the next decade.