Buyer

Mobius Renewables, LLC; Milwaukee (WI); On-site; USD 65,000 - 90,000; Full time

Job summary

Mobius Renewables, LLC in Milwaukee, WI is seeking a Buyer to support day-to-day procurement across operating sites and projects. You will purchase materials, spare parts, equipment, and services, manage purchase orders, and coordinate supplier activities to ensure timely deliveries.

You will collaborate with Operations, Accounts Payable, and third‑party warehouses, maintaining accurate records and ensuring procurement controls.

Qualifications

• Bachelor’s degree in Supply Chain Management, Business, or related field.
• 3+ years in procurement, supplier management, or supply chain operations.
• Experience creating, issuing, and managing purchase orders.
• Strong written and verbal communication skills.
• Proficiency with Microsoft 365 applications.

Responsibilities

• Process purchase requisitions and prepare and issue purchase orders.
• Obtain and evaluate vendor quotations including pricing, lead times, and delivery needs.
• Prepare bid comparisons and support supplier selection.
• Track open purchase orders and follow up with suppliers on delays.
• Process PO revisions, change orders, and cancellations.
• Resolve discrepancies in coordination with internal stakeholders and suppliers.
• Support purchasing needs for operating facilities and projects, including spare parts and services.
• Coordinate with Operations to understand requirements, specs, schedules, and priorities.
• Identify alternate suppliers when materials are unavailable or lead times are long.
• Support urgent and emergency purchasing while maintaining controls.
• Maintain supplier contacts, pricing, lead times, and purchasing information.
• Coordinate vendor onboarding and required documentation.
• Assist with inventory coordination and coordination with third-party warehouses.
• Ensure purchases comply with procurement processes and approvals, and maintain records.

Skills

Procurement

Vendor management

Purchase orders

Communication

Organization

MS 365

Education

Bachelor’s degree in Supply Chain Management

Bachelor’s degree in Business

Tools

Microsoft 365

Job description

At Mobius Renewables , we’re helping lead the global energy transition by transforming waste into renewable energy and measurable decarbonization. We’re a fast-growing team of expert innovators, engineers, and problem-solvers committed to advancing global sustainability, fueling a circular economy, and creating a cleaner future for all. Join us and help shape the future of renewable energy.

Position Summary

The Buyer supports day-to-day procurement activities across the company’s operating sites and projects. This role is responsible for purchasing materials, spare parts, equipment, and services; managing purchase orders; coordinating supplier activities; and helping ensure materials and services are available when needed.

The Buyer works closely with Operations (including Field Operations, Engineering, and Maintenance), Accounts Payable (AP), suppliers, and third-party warehouse vendors to support purchasing requirements, material availability, deliveries, receiving, inventory coordination, and invoice resolution.

The ideal candidate is organized, responsive, commercially minded, and comfortable managing multiple purchasing priorities across different sites and projects.

Key Responsibilities

Purchasing & Purchase Order Management

• Process purchase requisitions and prepare and issue purchase orders.
• Obtain and evaluate vendor quotations, including pricing, availability, lead times, freight, and delivery requirements.
• Prepare bid comparisons and support supplier selection.
• Track open purchase orders and follow up with suppliers on outstanding or delayed deliveries.
• Process PO revisions, change orders, and cancellations as required.
• Resolve PO, receiving, pricing, and invoice discrepancies in coordination with internal stakeholders and suppliers.

Operational & Site Procurement

• Support purchasing needs for operating facilities and projects, including spare parts, MRO materials, tools, consumables, equipment, and services.
• Work with Operations to understand purchasing requirements, scopes, technical specifications, schedules, and priorities.
• Identify alternate suppliers and sourcing options when materials are unavailable, pricing is unfavorable, or lead times do not meet operational requirements.
• Support urgent and emergency purchasing requirements while maintaining appropriate procurement controls.

Vendor, Inventory & Warehouse Coordination

• Maintain supplier contacts, pricing, lead-time, and purchasing information.
• Coordinate vendor onboarding and required documentation.
• Support procurement and replenishment of critical spare parts and other inventory.
• Coordinate with third-party warehouse vendors regarding deliveries, receiving, storage, inventory availability, and outbound shipments.
• Assist with efforts to standardize commonly purchased materials and spare parts across operating sites.
• Escalate recurring supplier performance, pricing, quality, or delivery issues as appropriate.

Commercial & Procurement Support

• Ensure purchases comply with established procurement processes, commercial requirements, and approval requirements.
• Maintain accurate purchasing documentation and records.
• Support the review of supplier proposals, scopes, pricing, and commercial terms.
• Provide purchasing updates and reporting on open orders, outstanding deliveries, supplier issues, and other procurement activities.

Qualifications

Required

• Bachelor’s degree in Supply Chain Management, Business, or a related field.
• 3+ years of experience in procurement, supplier management, or supply chain operations.
• Experience creating, issuing, and managing purchase orders.
• Strong organizational skills and attention to detail.
• Ability to manage multiple requests, deadlines, and priorities.
• Strong written and verbal communication skills.
• Proficiency with Microsoft 365 applications.

Preferred

• Experience supporting biogas, renewable natural gas (RNG), oil and gas, energy, industrial, manufacturing/processing, or similar operations.
• Experience purchasing MRO materials, spare parts, equipment, and field services.
• Familiarity with ERP, procurement, or purchasing systems.
• Basic understanding of commercial contract terms, freight and shipping terms, and inventory management.

What Success Looks Like

A successful Buyer will:

• Keep purchase orders moving efficiently from request through delivery.
• Maintain visibility into open orders and proactively address issues.
• Help ensure critical materials and spare parts are available when operating sites need them.
• Build effective working relationships with internal and external stakeholders.
• Maintain accurate purchasing, pricing, supplier, and inventory information.
• Identify and escalation supplier, material, or commercial issues before they impact operations.
• Take ownership of routine purchasing activities and supplier follow-up, allowing procurement leadership to focus on strategic sourcing, major negotiations, contracts, and higher-value procurement activities.