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Senior Accountant

Arrowhead Pharmaceuticals
August 13, 2026
On-site
Los Angeles, CA
Corporate Functions
Responsibilities:
- Support month-end and quarter-end close processes, including preparation and posting of journal entries for assigned accounts
- Prepare and maintain balance sheet reconciliations (lease accounting, other current assets, bonus accruals, transfer pricing, clinical trial accruals)
- Perform flux analysis to explain period-over-period variances and support management review and audit requirements
- Assist with preparation of SEC reporting deliverables, including support for Forms 10-Q and 10-K (e.g., rollforwards and disclosure support)
- Contribute to segment reporting and other financial reporting requirements
- Support internal and external audit requests, including preparation of audit schedules and supporting documentation
- Update accounting policies, technical memos, and documentation to ensure compliance with U.S. GAAP and SOX
- Collaborate cross-functionally to gather data supporting accounting estimates and accruals
- Respond to ad hoc requests and participate in process improvement initiatives

Requirements:
- Bachelor’s degree in Accounting, Finance, or related field
- 1–3+ years relevant accounting experience (public accounting or industry preferred)
- Foundational knowledge of U.S. GAAP
- Experience supporting month-end close and account reconciliations
- Strong analytical/problem-solving skills with attention to detail
- Ability to manage multiple priorities and meet tight deadlines
- Strong interpersonal and communication skills
- Highly organized, self-motivated, eager to learn in a fast-paced environment
- Proficiency in Microsoft Excel

Preferred:
- CPA or CPA-track
- Exposure to SEC reporting or SOX controls
- Biotech/pharma/life sciences experience
- Big 4 public accounting experience
- ERP systems experience

Application/Other:
- Full-time, onsite position in Pasadena, CA
- California pay range: $100,000–$115,000
- Candidates must have current, valid authorization to work in the country where the role is located.