About HydroGraph

HydroGraph 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), HydroGraph 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.

Position Summary

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 NetSuite, 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.

Key Responsibilities

Procurement & Purchasing

Support direct and indirect procurement activities, including vendor outreach and negotiation assistance
Create and manage purchase orders within NetSuite 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

Logistics & Supplier Management

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

Technology Supply & Vendor Management

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

Supply Chain & Office Operations

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

What We're Looking For

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 NetSuite 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

Nice to Have

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

Why Join HydroGraph

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.

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Buyer 1