The Sourcing Manager oversees sourcing and purchasing of transformers and equipment, ensuring timely delivery and quality standards are met while collaborating with cross-functional teams.
ON.energy is building the power infrastructure that makes the AI era possible. As AI demand surges past what the grid and traditional data centers can support, ON.energy provides a new class of power technology proven at gigawatt scale and trusted by the world’s leading cloud and AI companies. Our systems are already deployed across 2.5 GW of hyper-scale campuses, validated by top U.S. national labs, and certified for grid-safe operation by major utilities. With real products in the field, we’re scaling faster than the grid can, transforming power from a bottleneck into a competitive advantage for the companies building the future.
The Supply Chain Sourcing Manager – Transformers is responsible for planning, sourcing, purchasing, logistics, and supplier management across transformer and substation equipment. This role focuses on power transformers, distribution transformers, auxiliary transformers, and associated balance-of-system components to ensure on-time, cost-effective, and high-quality delivery of materials and services.
The role partners closely with Engineering, Operations, Finance, and Quality to align supply chain strategy with business objectives and support safe, reliable, and scalable energy infrastructure deployments.
Category-Specific Responsibilities – Transformers- Source and manage procurement of power transformers, distribution transformers, pad-mounted units, and related substation equipment.
- Oversee technical specifications for transformer systems, including:
- Voltage ratings, MVA capacity, and impedance characteristics
- Cooling systems (ONAN, ONAF, OFAF, etc.)
- Insulation systems and dielectric performance
- Losses (no-load and load losses) and efficiency requirements
- Protection, monitoring, and control systems
- Partner with Engineering on:
- Transformer sizing and specification development
- Substation design and system integration
- Grid interconnection requirements and utility standards
- Protection schemes and relay coordination
- SCADA and communication protocols
- Negotiate supply agreements to include pricing, warranties, performance guarantees, spare parts, and long-term service agreements (LTSA).
- Develop and execute sourcing strategies for transformers and electrical infrastructure components.
- Lead supplier selection, qualification, RFQs/RFPs, negotiations, and contracting.
- Manage commercial terms, pricing structures, delivery schedules, and escalation clauses.
- Drive cost optimization through multi-sourcing, should-cost modeling, and total cost of ownership (TCO) analysis.
- Build and maintain strong relationships with transformer OEMs, EPC partners, and key component suppliers.
- Conduct supplier performance reviews across quality, delivery, cost, and technical responsiveness.
- Lead supplier corrective actions, risk mitigation efforts, and continuous improvement initiatives.
- Work with Engineering on specifications, equipment selection, and change management.
- Partner with Operations to support project execution, installation, and commissioning.
- Align with Finance on budgeting, cost tracking, and savings initiatives.
- Support Quality in NCR resolution, failure analysis, and supplier audits.
- Monitor market trends in transformer manufacturing, raw materials (e.g., copper, steel), and supply chain constraints.
- Identify and mitigate risks related to long lead times, manufacturing capacity, geopolitical factors, and evolving grid standards.
- Implement process improvements to streamline procurement and improve scalability.
- Develop contingency plans for supply disruptions, quality issues, or performance risks.
- Bachelor’s degree in Supply Chain, Business, Engineering, or related field.
- 10+ years of supply chain or procurement experience, with 5+ years of transformer, substation, or power systems experience strongly preferred.
- Strong understanding of transformer technologies, grid infrastructure, and industry standards (IEEE, IEC).
- Proven negotiation, analytical, and contract management skills.
- Excellent communication and cross-functional stakeholder management skills.
For US-based roles - What you’ll get:
- Competitive salary + annual performance-based bonus eligibility
- Medical, dental, and vision insurance
- 401(k) with company match
- Paid time off and company holidays
For Mexico-based roles - What you’ll get:
- Competitive salary + annual performance bonus eligibility
- Christmas Bonus (Aguinaldo): 30 days
- Major medical expenses and life insurance
- Paid time off and holidays (per local policy)
For all roles:
- Professional development and growth opportunities
- Opportunity to grow with a mission-driven team shaping the future of clean energy
- Equal Opportunity: ON.energy is committed to equal employment opportunity and to maintaining a work environment free of harassment, discrimination, or retaliation.
- Accommodations: If you need an accommodation during the application process, email [email protected]
- Benefits vary by role and location and are subject to change.
Similar Jobs
Cloud • Information Technology • Security • Software • Cybersecurity
Serve as the field technical authority bridging enterprise AI and security: drive AI security strategy, lead demos and POVs, advise on LLM/RAG/agent risks and data protection, influence product roadmap, and create reusable enablement assets to scale sales and secure production AI deployments.
Top Skills:
AgentsApi IntegrationsCloud-Native Security PlatformsData Loss Prevention (Dlp)Llm ApisLlmsModel Context Protocol (Mcp)Prompt WorkflowsRetrieval-Augmented Generation (Rag)Zero Trust
Cloud • Information Technology • Security • Software • Cybersecurity
Lead field-facing AI security strategy for enterprise customers: architect solutions, deliver demos/POVs, advise on LLM/RAG/agent security, prevent data exposure, and scale enablement across sales and product teams.
Top Skills:
AgentsApi IntegrationsCloud-Native Security PlatformsDlpLlm ApisLlmsMcp (Model Context Protocol)Prompt WorkflowsRagZero Trust
Cloud • Information Technology • Security • Software • Cybersecurity
Serve as field-facing technical authority on enterprise AI security: define AI technical strategy, design and deliver tailored demos/POVs, advise on LLM/RAG/agent risks and data protection, feed product roadmap, and create reusable enablement assets and training for sales and engineering teams.
Top Skills:
Agentic AutomationApi IntegrationsCloud-Native Security PlatformsData Loss Prevention (Dlp)GenaiLarge Language Models (Llms)Llm ApisModel Context Protocol (Mcp)Prompt WorkflowsRetrieval-Augmented Generation (Rag)ScriptingZero Trust
What you need to know about the Seattle Tech Scene
Home to tech titans like Microsoft and Amazon, Seattle punches far above its weight in innovation. But its surrounding mountains, sprinkled with world-famous hiking trails and climbing routes, make the city a destination for outdoorsy types as well. Established as a logging town before shifting to shipbuilding and logistics, the Emerald City is now known for its contributions to aerospace, software, biotech and cloud computing. And its status as a thriving tech ecosystem is attracting out-of-town companies looking to establish new tech and engineering hubs.
Key Facts About Seattle Tech
- Number of Tech Workers: 287,000; 13% of overall workforce (2024 CompTIA survey)
- Major Tech Employers: Amazon, Microsoft, Meta, Google
- Key Industries: Artificial intelligence, cloud computing, software, biotechnology, game development
- Funding Landscape: $3.1 billion in venture capital funding in 2024 (Pitchbook)
- Notable Investors: Madrona, Fuse, Tola, Maveron
- Research Centers and Universities: University of Washington, Seattle University, Seattle Pacific University, Allen Institute for Brain Science, Bill & Melinda Gates Foundation, Seattle Children’s Research Institute
