Senior Manager, Cost Accounting
BioMarin Pharmaceutical
Remote (US) · Posted October 15, 2026
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BioMarin Pharmaceutical has filed one layoff notice in the last twelve months, covering 117 workers, most recently September 2026. These are public filings with state labor departments, and an open role can sit alongside them. See the filings
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About the job
Who We Are BioMarin is a leading rare disease biotechnology company focused on genetically defined conditions. Guided by our purpose to develop medicines that make a profound impact on people’s lives, our global teams have delivered a portfolio of therapies since our founding in 1997. Our revolutionary treatments for conditions like achondroplasia (the most common form of dwarfism), PKU (phenylketonuria), CLN2, a form of Batten disease, and a number of forms of MPS (mucopolysaccharidosis) offer new possibilities for patients and families who previously had few, if any, available options. More recently, with the close of the Amicus acquisition, our portfolio has expanded to include therapies for Fabry disease and Pompe disease, expanding our ability to reach more people living with rare genetic conditions. Our success comes from our unwavering commitment to excellence, our deep understanding of patient needs, our scientific expertise, and our world-class manufacturing capabilities. At the heart of BioMarin is a dedicated team of the brightest minds in the industry working together to deliver innovative therapies to patients and families around the world. About Corporate Groups It takes a village, and at BioMarin, our general and admin teams are the village behind our success. From the IT experts who manage our technology to the human resources professionals who hire the people who make it all possible, these teams support our organization and span all areas of operations. BioMarin is seeking a highly motivated Senior Manager to join our Technical Operations (TOPS) Finance team. The TOPS Finance team has responsibility for global FP&A, manufacturing accounting, plant controllership and ERP implementation support. This position will be a key member of a cross-functional team, collaborating extensively with regional and global finance colleagues and technical operations teams. Specific responsibilities will include inventory costing, excess & obsolescence, SOX compliance, USGAAP audits, intercompany profit elimination, cost of goods sold and balance sheet reconciliations. This role will be an active participant in key areas across all pillars of the TOPS Finance organization including the development of team members. RESPONSIBILITIES: Maintain internal controls for inventory accounting, in line with corporate policy, US GAAP and SOX requirements. Responsible for all aspects of SOX, internal and external audits for inventory for the US entity. Responsible for accuracy of inventory balances including correct treatment of commercial and clinical inventory, assessment of excess & obsolescence and elimination of profit in inventory. Ensure accurate inventory costing and overhead absorption for each stage of the manufacturing process from raw material purchases through to finished goods and COGS recognition. Monitor internal campaign manufacturing, production schedules and variations in cost of manufacturing. Ensure timely understanding and communication of any risks to COGS forecasts. Provide support to, and actively participate in, the ERP improvement projects as and needed. Responsible for period close activities for US entity including validation of cost of goods sold entries, appropriate treatment of operating overhead, balance sheet reconciliations in accordance with US GAAP and submission of close deliverables. Responsible for meeting monthly and quarterly deadlines to ensure hand-offs to other finance functions including SEC and Tax reporting, Controller reviews and TOPS business partner reviews. Responsible for setting annual Standard Costs, evaluating the annual inventory revaluation and amortization schedules Assist with preparation of consolidated financial management reporting for TOPS for balance sheet and P&L areas. Perform analysis and reporting for manufacturing waste, variances, inventory efficiency KPIs, PII (profit in inventory) and I/C elimination/reconciliation Establish key working relationships with corporate colleagues, particularly Tax, FP&A, GL Accounting, and ERP support teams. Provide coaching for junior staff, assess development opportunities to keep team engaged and motivated. EDUCATION: Bachelor’s degree in Accounting or related field is required. Certified Public Accountant (CPA) or equivalent is desired. EXPERIENCE: Minimum five years’ experience in a manufacturing business with audited financial statements. Experience in manufacturing accounting with an integrated ERP system essential. Demonstrate experience in leading process improvement initiatives and working on own initiative. Experience of US GAAP, Sarbanes Oxley, and internal control environment essential. Demonstrate cross-functional collaboration across finance and business functions to resolve business and finance critical issues. WORKSTYLE: Role may be performed remotely; however, if you live within 100 miles of our HQ in San Rafael, CA , the role reverts to hybrid requiring 2 days onsite - on a weekly basis. Note: This description is not intended to be all-inclusive, or a limitation of the duties of the position. It is intended to describe the general nature of the job that may include other duties as assumed or assigned. Equal Opportunity Employer/Veterans/Disabled An Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, or protected veteran status and will not be discriminated against on the basis of disability. Ireland Safety Responsibility Support the organisation’s commitment to environmental protection, injury prevention, and continual improvement of EHS management systems. Actively contribute to a safe and environmentally responsible workplace by identifying hazards, reporting incidents and participating in EHS initiatives and training.