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 • Mobile • Software
Own and govern the Professional Services delivery methodology, tooling, and escalation frameworks. Maintain portfolio health reporting, run RCA post-implementation, enforce PS tooling adoption, and develop implementation playbooks for different customer segments. Drive consistency across IMs and CSMs to reduce churn and improve go-live outcomes.
Top Skills:
AsanaCertiniaClickupConfluenceGainsightGcxGuidecxJIRANetSuiteQuickbooksSageSalesforce
.png)
Artificial Intelligence • Blockchain • Fintech • Financial Services • Cryptocurrency • NFT • Web3
Build and operate Coinbase's LLM and agent platform: unified model gateway, AI Hub, secure microVM agent runtime, knowledge base integrations, AI FinOps, observability and evaluation tooling, and production-grade agent deployments with teams across the company.
Top Skills:
Ai AgentsAuthenticationAWSCloud ProvidersFine-TuningFinopsKnowledge BasesLlmsMicrovmsObservabilityPii RedactionTracingVector Stores
Fintech • HR Tech
Founding quota-carrying seller for Gusto's PEO sales team. Own full sales cycle, close net-new and install-base conversions, guide complex co-employment decisions, work broker/channel partners, use AI-powered workflows daily, maintain Salesforce, and collaborate cross-functionally to scale the PEO motion.
Top Skills:
Ai ToolsAi-Powered WorkflowsBenefits Administration ToolsHcm PlatformsSalesforce.Com (Sfdc)
What you need to know about the Chicago Tech Scene
With vibrant neighborhoods, great food and more affordable housing than either coast, Chicago might be the most liveable major tech hub. It is the birthplace of modern commodities and futures trading, a national hub for logistics and commerce, and home to the American Medical Association and the American Bar Association. This diverse blend of industry influences has helped Chicago emerge as a major player in verticals like fintech, biotechnology, legal tech, e-commerce and logistics technology. It’s also a major hiring center for tech companies on both coasts.
Key Facts About Chicago Tech
- Number of Tech Workers: 245,800; 5.2% of overall workforce (2024 CompTIA survey)
- Major Tech Employers: McDonald’s, John Deere, Boeing, Morningstar
- Key Industries: Artificial intelligence, biotechnology, fintech, software, logistics technology
- Funding Landscape: $2.5 billion in venture capital funding in 2024 (Pitchbook)
- Notable Investors: Pritzker Group Venture Capital, Arch Venture Partners, MATH Venture Partners, Jump Capital, Hyde Park Venture Partners
- Research Centers and Universities: Northwestern University, University of Chicago, University of Illinois Urbana-Champaign, Illinois Institute of Technology, Argonne National Laboratory, Fermi National Accelerator Laboratory
