Buyer, Supply Chain​/Logistics

About Hydro Graph

Hydro Graph is a hyper-growth advanced materials company scaling pristine, high-performance graphene via its patented Hyperion detonation technology. With more than 70 active commercial projects, a growing global footprint, and industry-leading material quality (99.8% pure graphene), Hydro Graph is building the next generation of engineered materials for coatings, composites, and energy storage. Our new Austin HQ will serve as the flagship center for innovation, applied R&D, customer engagement, and rapid material development.

The Buyer I supports all purchasing and supply chain operations, ensuring the timely and cost-effective acquisition of goods and services. This role plays a critical part in maintaining supplier relationships, managing purchase transactions within Net Suite, coordinating logistics activities, and supporting office and IT-related operations. The position requires a highly organized, detail-oriented individual capable of managing multiple priorities in a fast-paced environment.

This position reports to the Director of Supply Chain.

• Support direct and indirect procurement activities, including vendor outreach and negotiation assistance
• Create and manage purchase orders within Net Suite ERP
• Perform 3-way matching (PO, receipt, invoice) to ensure data accuracy and payment integrity
• Maintain supplier records, pricing data, and contract documentation
• Assist in setting up and managing corporate supplier accounts and Net 30 terms

• Coordinate inbound and outbound shipments, including small parcel shipping and freight
• Track shipments and proactively follow up on delivery status
• Communicate with suppliers and internal stakeholders to resolve order discrepancies and delays
• Support customer-facing logistics coordination as needed

• Serve as the primary interface between internal stakeholders and the external Managed Service Provider (MSP), managing SLAs, issue escalation, and vendor accountability
• Coordinate IT hardware supply and delivery for new hires; partner with the MSP on account provisioning and onboarding timelines
• Maintain IT asset registry and manage equipment lifecycle including supply planning, refresh cycles, and disposition

• Own replenishment and inventory management for office supplies, consumables, and pantry stock; maintain par levels and manage vendor relationships to ensure cost-effective supply continuity
• Coordinate with facilities and security vendors for access credentialing, badge administration, and service scheduling
• Support day-to-day office operations and execute ad hoc supply chain and administrative tasks as business needs require

• Experience in procurement, purchasing, operations, or a related field, or a strong desire to learn and grow into the role
• Exposure to ERP systems a plus; willingness to learn Net Suite required
• Highly organized with strong attention to detail, you care about getting it right
• Able to juggle multiple priorities and follow through without being reminded
• Clear communicator who is comfortable working with suppliers, vendors, and internal teams
• Proficient in Microsoft Office (Excel, Outlook, Teams) or eager to build those skills

• Experience with 3-way matching or AP processes
• Exposure to manufacturing or lab environments
• Basic understanding of managed IT services or IT asset management

• Lead the core scientific engine of one of the fastest-growing graphene companies in the world.
• Shape a next-generation materials platform used across aerospace, energy, infrastructure, consumer goods, and defense.
• Work directly with global partners and world-class advisors (GEIC, OEMs, DoD).
• Competitive compensation, equity participation, and career advancement as the company scales.