Join us as a Senior Accountant 1 , and you'll be part of a culture that welcomes diversity, thinks differently to solve problems, works collaboratively as one team, and delivers meaningful innovations that impact people's lives.

How you will make an impact

Senior Accountant 1 is responsible for leading monthly, quarterly, and year-end close activities, including journal entries, reconciliations, and financial analyses across key areas such as fixed assets, debt, intercompany transactions, leases, and international accounting. The role supports compliance and reporting requirements by preparing schedules for SEC filings, audits, and tax returns, managing reconciliation software, and partnering with auditors to review processes and controls. Additionally, the Senior Accountant drives process improvements, assists with system implementations, and ensures adherence to U.S. GAAP, SOX, and other regulatory standards.

In this role, you'll have the opportunity to:

• Perform monthly, quarterly, and year-end close processes including preparation of journal entries and account reconciliations across fixed assets, debt, intercompany transactions, leases, allocations, prepaids and international accounting activities.
• Conduct periodic analyses of chargebacks, GPO fees, and returns reserves to identify trends and establish appropriate provision rates.
• Review and monitor deferred revenue balances, ensuring accurate classification between current and long-term accounts.
• Perform initial reviews of treasury and investment portfolios; prepare quarterly disclosure reports and record bank-related transactions with corresponding reconciliations.
• Provide support for property tax and sales tax reporting requirements.
• Manage account reconciliations and journal entries, including administration of reconciliation software (e.g., Blackline).
• Develop and maintain supporting schedules for SEC filings, quarterly and annual audits, and tax returns.
• Partner with auditors to complete walkthroughs of processes and controls for assigned areas of responsibility.
• Identify, assess, and implement process improvements to strengthen efficiency and enhance internal controls.
• Assist with the implementation and integration of new systems and system upgrades.
• Ensure compliance with U.S. GAAP, SOX and other regulatory requirements.
• Collaborate consistently with colleagues across the Finance and Accounting department and partner effectively with other departments to ensure alignment and accuracy in financial processes.
• Maintain and support productive working relationships with both internal and external auditors, facilitating clear communication and timely resolution of audit inquiries.
• Oversee and manage relationships with designated third-party service providers, ensuring service quality, compliance, and value delivery
• Other duties as assigned

To succeed in this role, you'll need:

• Bachelor's degree in Accounting (or equivalent discipline) required
• Minimum of 4 years of progressive accounting experience, ideally combining public accounting and industry exposure (biotech or related fields strongly preferred).
• Comprehensive understanding of U.S. GAAP and its application in complex business environments.
• CPA certification strongly preferred; active license considered a significant advantage.
• Familiarity with SEC reporting, audit processes and tax compliance requirements.
• Strong analytical, problem-solving, and critical-thinking skills with the ability to translate data into actionable insights.
• Proven success collaborating across cross-functional teams and building effective working relationships.
• Highly organized, detail-oriented, and capable of managing multiple priorities in fast-paced environments.
• Self-starter with the ability to work independently while consistently meeting deadlines.
• Adaptable to evolving work approaches, new systems, and process improvements.
• Experience with other financial software preferred, including Microsoft Dynamics (Great Plains), Epicor, NetSuite, FinQuery, and Blackline.

In return, we offer you:

• Full and comprehensive benefit program, including an Employee Stock Purchase Program and 401(k) matching.
• Opportunities to grow in a culture that prioritizes learning, development and progression through in-house programs and tuition reimbursement.
• A collaborative, innovative team that works as one to amplify your impact-on your career, the work you do and patients' lives.

Environmental conditions:

Physical Activities: On a continuous basis, be at a desk for a long period of time; intermittently answer the telephone and type on a computer. Some walking and lifting up to 20 lbs. may be required. The noise level in the work environment is usually low to moderate.

The physical requirements described above are representative of those that must be met by an employee to successfully perform the essential functions and responsibilities of this job. Reasonable accommodations may be made to enable individuals with disabilities to perform the essential functions and responsibilities of this job.

Travel:

Travel may be required up to 5% of your time.

The most likely base pay range for this position is $96,000 - $130,000 per year. Several factors, such as experience, tenure, skills, and particular business needs, will determine an individual's exact level of compensation. Base salary is only one element of employee compensation at Halozyme. Total compensation could include bonuses, sales incentives, and equity awards.