Payroll Lead - US (Part-Time)

Payroll Lead - US (Part-Time)

iCIMS Job ID

2025-3760

# of Openings

Job Family

Payroll

Workplace Type

Hybrid

Overview

Trinseo is a different kind of global materials company - at the intersection of people, technology, and customers. We are a world leader in the production of plastics and latex binders. Our culture is built on passion and innovation.

A career at Trinseo presents a unique opportunity to work in a highly collaborative environment. Helping customers solve their most complex material challenges is the reason we come to work each day. We are seeking innovative thinkers - ready to tackle any challenge and passionate about delivering value.

As a global materials solutions provider focused on delivering innovative and sustainable solutions to our customers, we need people to feel respected and included so they can be more creative, innovative, and successful. We strive to create workplaces that reflect all communities and customers we serve and where everyone feels empowered to bring their full, authentic selves to work. That's why we're fully committed to inclusion across race, gender, age, religion, identity, and experience to drive us forward every day.

Overview (Scope of Role)

The Payroll Lead - US (Part-Time) is responsible for overseeing the execution and compliance of U.S. payroll in partnership with our outsourced payroll vendor. Using Workday as the core HRIS, this role ensures payroll accuracy, vendor performance, and timely processing for our U.S.-based employee population. The ideal candidate brings strong analytical skills, deep knowledge of U.S. payroll and payroll tax regulations, and experience managing third-party payroll relationships within a Workday environment.

This is a part-time role - Monday-Friday, 20-25 hours / week and would be eligible for company benefits!

Responsibilities

Vendor and Payroll Management - 40%

Act as the primary liaison between internal teams and the outsourced payroll provider to manage the end-to-end U.S. payroll process including vendor management.

• Validate payroll inputs and outputs in Workday, including compensation changes, one-time payments, retroactive adjustments, and time data feeds.
• Review payroll registers, pre-processing reports, and final output files for accuracy and compliance.
• Review and approve biweekly payroll calculations, deductions, and withholdings processed by the vendor in compliance with company policies and legal requirements.
• Ensure correct application of federal, state, and local tax withholdings, garnishments, and benefit deductions.
• Monitor payroll calendars, deadlines, and service level agreements (SLAs); escalate and resolve issues as needed.

Reporting and Compliance - 30%

Payroll Optimization - 20%

Other - 10%

Qualifications

Minimum Education Required :

Minimum Experience Required :

Knowledge, Skills & Abilities :

Equity and Inclusion

With our expanding global presence, cross-cultural insight and competence are essential for our ongoing success. We believe that a diverse workforce contributes different perspectives, experiences and creative ideas that enable us to continue to improve every day. Race, gender, ethnicity, country of origin, age, personal style, sexual orientation, physical ability, religion, work and life experiences and many more factors contribute to this diversity. We welcome all applicants, regardless of their backgrounds, and are committed to a fair and inclusive hiring process.

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