Senior Accountant I, Accounts Payable

Welcome to an inspired career. At Halozyme, we are reinventing the patient experience and building the future of drug delivery. We are passionate about the important work we do and constantly strive to do more. We embrace transformation and work hard to innovate for the future. We do this together, as One Team – we rise by lifting others up and believe in the power of working together for the collective win.

That’s why we need you—to help us make a significant impact by taking on increasingly complex challenges, leaping beyond the status quo, advancing our mission and making our One Team culture thrive.

Join us as a Senior Accountant, Accounts Payable & T&E, 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.

This role partners across the business to ensure accurate, timely, and compliant execution while leveraging Net Suite, Concur, direct bank interfaces, analysis, automation, and creative problem solving to improve processes, controls, reporting, and the employee and vendor experience.

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

• Process, review, and analyze Procure-to-Pay transactions, including accounts payable, invoices, credit memos, purchase orders, vendor accruals, reconciliations, and related vendor activity.
• Support Procure-to-Pay and T&E processes, ensuring timely execution, accurate coding, policy compliance, and strong customer service.
• Administer the corporate T&E card program, including cardholder support, policy compliance, transaction monitoring, issue resolution, and related reporting.
• Perform vendor verification procedures for new and existing vendors, including validation of vendor information, banking details, tax documentation, and required approvals.
• Execute payment processes through Net Suite and direct bank interfaces, including ACH, wire, check, domestic, and foreign vendor payments.
• Research and resolve vendor, employee, banking, invoice, and payment inquiries in partnership with Finance, business partners, vendors, and auditors.
• Calculate and record accruals and prepare journal entries, account reconciliations, month‑end schedules, fluctuation analyses, vendor aging reviews, and other AP/T&E reporting.
• Maintain required documentation, approvals, tax reporting support, audit support, Sunshine Act support, and SOX control compliance.
• Coordinate annual W‑9 and 1099 reporting, including collection, review, filing, and maintenance of vendor tax documentation.
• Support testing, implementation, and ongoing improvement of Net Suite workflows, bank interfaces, reporting, Procure-to-Pay, and T&E processes, with a focus on driving automation and scalable solutions.
• Apply analytical and creative problem‑solving skills to identify process gaps, evaluate root causes, recommend solutions, and improve accuracy, efficiency, and scalability.
• Perform other duties as assigned.

• Bachelor’s degree in Accounting, Finance, or related field; equivalent experience may be considered.
• Minimum of five years of accounts payable, procure-to-pay, T&E and/or general ledger accounting experience in a public company or SOX‑controlled environment.
• Experience in life sciences, pharmaceutical, biotech or manufacturing environments.
• Strong knowledge of full‑cycle accounts payable processing, payment processing, accruals, expense reporting, corporate card programs, internal controls, and SOX compliance.
• Experience supporting month‑end close, including accruals, journal entries, reconciliations, variance analysis, and AP/T&E reporting.
• Experience with domestic and international payments, including ACH, wire, check, foreign currency, and bank interfaces.
• Proficiency with ERP systems, AP automation, expense management tools, Microsoft Excel, and related financial systems.
• Demonstrated experience working effectively with vendors, third‑party service providers, and cross‑functional business partners.

• Excellent communication, collaboration, and business partnering skills, with the ability to work…