Controller

Ossium Health • San Francisco, CA

20d • $195,000 - $240,000 • Hybrid

About The Position

Ossium is hiring a Controller to lead and strengthen its accounting function as the company scales. Reporting to the VP, Finance, the Controller will lead a small team and own the accounting function so financial reporting keeps pace with operations. The role focuses on improving the quality, speed, and reliability of accounting operations, including the close process, audits, technical accounting, internal controls, policies and procedures, and accounting for R&D and clinical expense accruals, government grant and contract funding, and equity. The Controller will also partner with the VP, Finance on budgeting and forecasting and prepare written analyses and memos for auditors, leadership, and investors.

The ideal candidate is a hands-on leader who can both execute accounting work and set direction. They will improve processes and systems, coach a small team, and communicate confidently with internal partners and external stakeholders.

The position is based in Ossium’s San Francisco office, with a hybrid schedule: Monday through Thursday in the office and Friday remote. The salary range is $195,000–$240,000 annually. Starting pay depends on job-related skills, experience, qualifications, and market conditions, and the range may change in the future.

Requirements

• At least 10 years of progressive accounting experience, including at least 3 years in public accounting and at least 3 years in a Controller or Assistant Controller role.
• At least 3 years of direct people-management experience, including hiring, coaching, and developing staff.
• Experience owning the full month-end, quarter-end, and year-end close process, including preparing financial statements and flux or variance analyses.
• Experience leading financial statement audits end to end, preparing audit schedules, managing PBC requests, and serving as the primary point of contact.
• Strong technical knowledge of US GAAP, including the ability to research accounting issues and prepare technical memos.
• Experience with inventory and cost accounting.
• Hands-on experience with NetSuite and Bill.com.
• Proven ability to work cross-functionally with internal teams.
• Advanced Excel and analytical skills.
• Excellent verbal and written communication skills, including the ability to explain financial results clearly to non-finance stakeholders.

Nice To Haves

• Experience in a biotech, pharmaceutical, or FDA-regulated life sciences company.
• Experience with cost accounting in a manufacturing, GMP, or lab-processing environment, including standard costing and inventory valuation for biological or perishable products.
• Experience implementing an inventory module or integrating an inventory management system with NetSuite.
• Experience with clinical trial or R&D expense accruals, including CRO and CDMO arrangements.
• Experience accounting for government grants or contracts.

Responsibilities

• Lead, mentor, and develop the accounting team; set priorities, review work, and help plan for future growth.
• Oversee corporate accounting functions, including accounts payable and receivable, revenue, payroll accounting, fixed assets, and financial reporting.
• Own the monthly, quarterly, and year-end close and prepare US GAAP financial statements within management’s timelines.
• Prepare monthly flux analyses and report variances and trends to the VP, Finance and leadership.
• Lead the annual financial statement audit, manage the auditor relationship, and coordinate with the technical accounting team on complex accounting matters.
• Partner with Supply Chain and Operations to bring inventory accounting fully into NetSuite.
• Design, document, and maintain internal controls to reduce financial risk and ensure accurate company records.
• Identify and implement improvements to accounting processes, policies, and procedures.
• Work with leaders across Ossium to optimize accounting and finance systems and scale processes that support business growth.
• Manage external relationships for audit, banking, compliance, insurance, and tax.
• Prepare written documents, including technical memos, auditor responses, and answers to investor questions.
• Complete the 2025 financial statement audit and plan, launch, and complete the 2026 financial statement audit.
• Kick off the project to bring inventory accounting fully into NetSuite.
• Learn the month-end close and identify opportunities to shorten the timeline, improve flux reporting, and strengthen controls.

What This Job Offers

• Job Type: Full-time
• Career Level: Senior
• Education Level: No Education Listed