Job Title
Payroll Specialist
Requisition
JR000014536 Payroll Specialist (Open)
Location
Hazelwood, MO
Additional Locations
Job Description Summary
Job Description
The Payroll Specialist is responsible for accurately preparing and processing company payrolls, tracking key performance indicators (KPIs), generating and managing audit reports, conducting system testing, and proactively identifying improvement opportunities. This role also ensures adherence to key controls.
Essential Functions
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Execute payroll activities for salaried exempt, non-exempt, and hourly employees on bi-weekly and weekly schedules.
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Audit HR payroll data from Workday and external sources, ensuring accuracy.
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Prepare and audit payroll batches in ADP, making corrections as needed.
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Calculate pro-rated salaries for mid-period hires and terminations.
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Prepare documentation to support payroll processing and ensure tax compliance.
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Process payroll adjustments, special calculations (e.g., retro payments, off-cycle loads), and support Workday configuration/testing.
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Provide payroll reports to internal and external stakeholders, including tax authorities.
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Assist with payroll for mergers, acquisitions, and system updates.
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Handle wage garnishments, employee inquiries, and support the annual compensation cycle.
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Cover other payroll roles and participate in department meetings for process improvement.
Minimum Requirements
Education / Experience / Skills:
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Previous experience processing multi-state payroll using ADP and other payroll software.
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Strong knowledge of payroll laws, regulations, and best practices.
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Excellent organizational skills, attention to detail, and ability to work independently as a self-starter.
Preferences
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Experience with local tax withholding requirements
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Experience with Workday payroll and time tracking
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Fundamental Payroll Certification (FPC) or Certified Payroll Professional (CPP) designation
Organizational Relationship/Scope:
Individual contributor role that will work cross functionally with HR and Finance functions.
Working Conditions:
Normal office environment. Currently the Company has a hybrid working model but is subject to change based upon business needs.
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Top Skills
What We Do
At Mallinckrodt, we use strategic vision and employee-driven momentum to pursue a powerful mission: Listening for needs and delivering solutions.
As a leader in specialty pharmaceuticals, we develop, manufacture, market and distribute innovative treatments for underserved patient populations within neurology, rheumatology, hepatology, nephrology, pulmonology, ophthalmology, and oncology; immunotherapy and neonatal respiratory critical care therapies; analgesics; cultured skin substitutes and gastrointestinal products. . Our expertise also extends into acute and critical care hospital products, as well as our broad portfolio of generic prescription medicines and active pharmaceutical ingredients.
Together, we’re helping shape the future of the specialty pharmaceuticals industry by leveraging the values our founders instilled over 155 years ago – quality, integrity and service.
To learn more about Mallinckrodt, visit www.mallinckrodt.com.
Equal Opportunity Employer
Mallinckrodt Pharmaceuticals provides equal employment opportunities (EEO) to all employees and applicants for employment without regard to race, color, religion, gender, sexual orientation, gender identity, national origin, age, disability, veteran status or genetics. In addition to federal law requirements, Mallinckrodt Pharmaceuticals complies with applicable state and local laws governing nondiscrimination in employment in every location in which the company has facilities. This policy applies to all terms and conditions of employment, including recruiting, hiring, placement, promotion, termination, layoff, recall, transfer, leaves of absence, compensation and training.
