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Senior Payroll & Benefits Specialist

Arrowhead Pharmaceuticals
14 hours ago
On-site
Los Angeles, CA
$85,000 - $110,000 USD yearly
Human Resources
The Senior Payroll & Benefits Specialist (People Services & Culture) will assist with end-to-end biweekly payroll processing and day-to-day benefit support for employees across four locations (Pasadena, CA; San Diego, CA; Madison, WI; Verona, WI), and process off-cycle payrolls as needed.

Responsibilities:
- Back up payroll activities, including final pay for terminations and separation processing through ADP WFN.
- Create, maintain, and close out equity compensation checklists; route for timely completion.
- Manage the companyโ€™s equity plan and administer daily and quarterly equity transactions (new grants, stock option exercises, RSUs).
- Ensure equity processes comply with federal, state, and local regulations.
- Back up biweekly timecard review/processing and follow up with employees/supervisors.
- Maintain electronic equity filing systems.
- Back up benefits tracking/management; provide benefit support.
- Conduct audits to ensure employee changes and pay data are entered correctly.
- Provide HR system support, focus on process improvement, and support general HR/People Services tasks.

Requirements:
- 4 recent years of payroll & benefits experience.
- Associate degree.
- Ability to follow verbal/written instructions; maintain attention to detail in a fast-paced environment.
- Strong analytical/organizational skills.
- Recent experience with ADP WFN (current version) and advanced Excel.
- Knowledge of wage and hour laws related to payroll.
- Proficient in Microsoft Office.
- Strong oral/written communication; ability to interact with others at all levels.
- Flexibility for extra hours during critical times; strong time management (independent and team).

Preferred:
- Bachelorโ€™s degree.

This is a full-time, onsite position at the corporate headquarters in Pasadena, CA.