Senior Buyer, U.S. Operations

Location:
Boulder CO United States (On-Site)

Department: Supply Chain / Procurement

Are you ready to lead high-impact procurement initiatives with a dynamic, high-growth company? We are looking for a strategic, results-driven Senior Buyer to join our team.

This role is ideal for an experienced procurement professional looking to own end-to-end strategic sourcing, drive category management, and lead complex commercial negotiations within the renewable energy and energy storage industry. You will spearhead high-value sourcing strategies, manage critical supplier partnerships, and play a pivotal role in scaling our Source-to-Pay (S2P) operations.

You’ll work closely with executive leadership and cross-functional teams to mitigate supply chain risks, optimize cost structures, and support large-scale project deployment. This role includes a travel requirement of approximately 15-25% for key supplier negotiations, site visits, and operational coordination. If you have a passion for strategic sourcing, complex contracting, and driving continuous improvement in a fast-paced environment, we’d love to hear from you.

• Lead the end-to-end Source-to-Pay (S2P) lifecycle for critical project categories; develop and execute RFPs/RFQs, drive complex commercial bid evaluations, and architect high-value supplier contracts.
• Serve as the strategic escalation point for key suppliers; conduct regular business reviews, monitor long-term performance KPIs, mitigate commercial risks, and drive continuous supplier improvement.
• Partner seamlessly with Engineering, Project Management, Quality, Legal, and Finance teams to align procurement strategies with major project milestones, capital budgets, and execution timelines in an EPC driven environment.
• Negotiate favorable commercial terms, pricing agreements, warranties, and service level agreements (SLAs) while partnering with legal counsel to minimize risk and ensure corporate compliance.
• Conduct total cost of ownership (TCO) analyses, monitor global market trends for key commodities, generate executive-level reports, and identify cost-optimization opportunities.
• Drive internal procurement process improvements, maintain rigorous audit readiness within ERP systems.
• Advanced price negotiation and cost reduction
• Strategic sourcing and competitive bidding
• Contract drafting and commercial risk management
• Cross-functional leadership and stakeholder management
• Financial acumen and TCO (Total Cost of Ownership) analysis
• Advanced data analysis and market intelligence
• Project management and timeline execution
• Problem-solving and critical thinking
• Change management and continuous improvement
• Executive communication and presentation skills

• Bachelor’s degree in supply chain management, Business Administration, Engineering, Finance, or a related field.
• 6–8+ years of progressive experience in strategic sourcing, purchasing, contract management, or supply chain operations, ideally within industrial, manufacturing, construction, or energy sectors.
• Demonstrated success in independently drafting, negotiating, and executing complex commercial contracts and master service agreements (MSA’s).
• Advanced proficiency in ERP systems (such as SAP, Oracle, Net Suite) and procurement automation tools.
• Strong analytical capabilities with advanced proficiency in data analysis and Microsoft Excel (or related BI tools).
• Proven track record managing procurement within project-based or capital-intensive environments.
• Demonstrated ability to articulate and resolve complex operational or commercial challenges using structured frameworks (
  STAR method: Situation, Task, Action, Result during case evaluations/interviews)
• Exceptional cross-functional communication, active listening,…