Manager, Materials Management Buyer/Planner

About Artiva:We are a clinical-stage biotechnology company focused on developing natural killer (NK) cell-based therapies. Our mission is to develop effective, safe, and accessible cell therapies for patients with devastating autoimmune diseases. We aim to develop therapies that patients and physicians can utilize in a community setting. Our lead product candidate, AlloNK, is a non-genetically modified, cryopreserved NK cell therapy being evaluated in combination with B-cell targeted monoclonal antibodies (mAbs). We believe the compelling cell killing properties of NK cells, when combined with mAbs for targeting, creates an opportunity to generate potentially transformative therapies.For more information, visit .Job Summary:The Supply Chain Buyer/Planner is responsible for leading end-to-end inventory and materials management in support of a GMP-regulated (and non-GMP) biologics/pharmaceutical manufacturing environment. This role will own the full Raw Material lifecycle—from raw material planning and ordering through inventory control—ensuring uninterrupted, compliant, and cost-effective material flow to support clinical Manufacturing, Analytical Development, and Process Development.This role requires close collaboration with internal and external partners—including Manufacturing, Process Development, Analytical Development, QA/QC and raw material suppliers—as well as internal stakeholders across, Finance, procurement Manufacturing, and Regulatory Affairs, to maintain supply continuity, regulatory compliance, and operational excellence.​​Duties/Responsibilities:Manage an End-to-End inventory management program through collaboration with external partners (Contract Manufacturing Organizations, External Biorepositories, Raw Material suppliers).Manage a detailed End-to-End MRP process including the establishment of risk-based inventory targets.Support the S&OP process through End-to-End supply planning and scenario analysis.Support Raw Material risk assessment and Raw Material Qualification activities as part of BLA readiness activities.Support the establishment of a supplier management program with external vendors.Develop and maintain appropriate GMP controlled documents (i.e., SOPs, WIs, and Forms).Coordinate various temperature controlled non-clinical shipments of raw materials to support internal manufacturing.Creation and management of PO’s in accordance to department budget and invoicing support.Lead or support supplier/vendor selection, onboarding, and periodic performance/business reviews (scorecards, SLAs, corrective actions).Manage supplier quality agreements and change control notifications (e.g., raw material or CMO process changes) in partnership with Quality Assurance.Own inventory accuracy activities — cycle counts, physical inventories, discrepancy investigations and CAPAs.Support import/export and customs compliance for international raw material and drug substance/product shipments.Track and report on key supply chain metrics (OTIF, lead times, inventory turns, days of supply) to leadership.Participate in deviation/investigation and CAPA processes tied to supply chain or receiving issues (e.g., temperature excursions, damaged goods).Support tech transfer and scale-up activities by ensuring raw material/consumable supply readiness for new sites or processes.Manage supplier risk mitigation planning (single-source risk, allocation, dual-sourcing strategies, safety stock).Partner with Finance on accruals, purchase price variance, and cost-savings initiatives.Support internal and external audits/inspections (customer, regulatory) related to purchasing and inventory.Requirements:Bachelor’s Degree in Life Sciences, Supply Chain Management, or related discipline; advanced degree preferred.8+ years of relevant experience in inventory management, planning, or supply chain in a biotech or pharmaceutical company, preferably in handling cell therapy or other similarly complex products.Extensive quality and compliance background in a clinical GMP operational environment, including 3+ years prior experience in commercial or clinical GMP environment.Ability to execute strategic objectives by focusing on critical near-term priorities while building toward long-term supply chain robustness for reliable delivery of complex treatments to patients.Excellent analytical and problem-solving skills, with the ability to interpret complex data, make data-driven decisions, and clearly articulate business rationale and implications.Excellent planning, coordination, and time management skills; you translate high level goals into plans, collaborate and adapt to meet objectives and timelines.Excellent oral, written, and visual communication skills. You listen to understand and communicate effectively and persuasively with partners, colleagues, and leadership.A desire and ability to work in a dynamic, collaborative environment; you build productive and healthy relationships within and across functions.Collaborative and accountable – recognizes success requires teamwork and interdisciplinary thinking; you share feedback and constructively challenge and accept challenges to generate the best ideas to advance project and company goals.Self-motivated, with a proven ability to meet objectives, timelines, and high standards managing multiple responsibilities in parallel.Experience with GMP documentation practices (good documentation practices, deviation/CAPA systems).Proficiency in Excel/data analysis tools; experience building dashboards or reportsNegotiation experience with suppliers on pricing, lead times, and contract terms.Preferred Qualifications:Experience with Allogeneic Cell Therapy biotechnology companies.ERP system experience (i.e. Netsuite).APICS/ASCM certification (CPIM, CSCP) or similar supply chain credential.Experience supporting BLA/regulatory filings or commercial launch readiness from a supply chain perspective.In addition to a great culture, we offer:A beautiful facility An entrepreneurial, highly collaborative, and innovative environmentComprehensive benefits, including:Medical, Dental, and VisionGroup Life InsuranceLong Term Disability (LTD)401(k) Retirement PlanEmployee Assistance Program (EAP)Flexible Spending Account (FSA)Paid Time Off (PTO)Company paid holidays, including the year-end holiday weekOur recognition program, Bonus.ly, is where you can trade in points earned for things you want.If all this speaks to you, come join us on our journey!Base Salary: $ 130,000 - $145,000 annually. Exact compensation may vary based on level, skills and experience.DepartmentEmployment TypeFull-TimeMinimum Experience