Biotech Inventory & Cost Accounting Lead

Madrona Venture Labs; San Carlos (CA); On-site; USD 120,000 - 180,000; Full time

Job summary

Nautilus seeks an Accounting Operations Manager to bridge operations and finance, owning inventory transactions, standard costing methodologies, and manufacturing variance analysis for reagent kits, flow cells, and instrumentation. You will collaborate with operations, supply chain, and leadership to ensure ERP and inventory integrity as we scale from pre-commercial to commercial stage.

This hands-on role requires experience in regulated manufacturing environments, strong cost accounting skills,

Qualifications

• 6+ years of experience in manufacturing finance, cost accounting, inventory accounting, supply chain finance, or operational finance roles.
• Experience in biotechnology, life sciences, medical device, diagnostics, or other regulated manufacturing environments preferred.
• Strong understanding of inventory accounting, standard costing, variance analysis, and operational financial controls.
• Experience with ERP systems such as NetSuite, SAP, or similar (NetSuite strongly preferred).
• Advanced Excel / financial modeling capabilities.
• Ability to work cross-functionally with operations, procurement, and leadership teams.

Responsibilities

• Own month-end inventory close processes across raw materials, work-in-progress, and finished goods (reagent kits, flow cells, instrument components).
• Ensure timely and accurate closure of purchase orders, receipts, inventory transfers, and sales orders in NetSuite.
• Reconcile inventory movements, adjustments, yield loss, and scrap across product lines.
• Partner with operations and supply chain teams to improve ERP transaction discipline and inventory accuracy.
• Maintain inventory subledger integrity and support reconciliation to the general ledger.
• Review inventory discrepancies, negative inventory balances, and operational exceptions.
• Support implementation and optimization of NetSuite workflows and inventory controls as Nautilus scales toward commercialization.
• Build and maintain standard costing methodologies for raw materials, packaging, labor, freight, contract manufacturing, and cold-chain storage.
• Develop and maintain product-level and batch-level COGS models for reagent kits, flow cells, and instrumentation.
• Create labor, freight, and materials standards and perform variance analysis against actuals.

Skills

Inventory accounting

Cost accounting

Operational financial controls

Cross-functional collaboration

Financial planning & analysis

Tools

NetSuite

SAP

Excel

Job description

Nautilus seeks an Accounting Operations Manager to bridge operations and finance, owning inventory transactions, standard costing methodologies, and manufacturing variance analysis for reagent kits, flow cells, and instrumentation. You will collaborate with operations, supply chain, and leadership to ensure ERP and inventory integrity as we scale from pre-commercial to commercial stage.

This hands-on role requires experience in regulated manufacturing environments, strong cost accounting skills,