Payroll Associate Jobs in Boston, MA (NOW HIRING)

Ilir Sela started Slice with the belief that local pizzerias deserve all of the advantages of major franchises without compromising their independence. Starting with his family's pizzerias, we now empower over tens of thousands of restaurants with the technology, services, and collective power that owners need to better serve their digitally minded customers and build lasting businesses. We're growing and adding more talent to help fulfil this valuable mission. That's where you come in.

The Challenge to Solve

We are seeking a detail-oriented and proactive Payroll Associate to own end-to-end US payroll operations for a growing and diverse employee population of 300+, including both salaried exempt and hourly non-exempt employees.

This role will play a critical part in ensuring accurate, compliant, and timely payroll processing while supporting a systems transition from UKG Pro to ADP, alongside HRIS integration with HiBob. The ideal candidate thrives in a fast-paced environment, is highly analytical, and collaborates effectively across Finance and People teams.

The Role

You'll be joining at a pivotal moment, owning payroll accuracy and compliance for a growing team while leading a major transformation in payroll and HR systems. You'll directly contribute to improving operational efficiency, employee experience, and the overall quality of payroll services. This is a high-visibility role with real opportunity to shape the processes and infrastructure that will scale with the payroll team, company, and teammates.

Payroll Processing & Operations

• Execute end-to-end US payroll processing on a biweekly/semi-monthly basis using UKG Pro (and transitioning to ADP)
• Ensure accurate calculation of wages, overtime, bonuses, commissions, and deductions
• Validate payroll inputs including new hires, terminations, pay changes, and timekeeping data
• Process off-cycle payrolls, adjustments, and retroactive payments
• Manage multi-state payroll compliance, including tax withholdings and registrations

Deductions, Benefits & Garnishments

• Administer employee deductions including pre-tax and post-tax benefits via Bswift
• Reconcile and manage 401(k) contributions with Principal, including funding and reporting
• Process and maintain wage garnishments, levies, and child support orders in compliance with federal and state regulations
• Ensure proper handling of FSA, HSA, and other benefit-related deductions

Payroll Compliance & Reporting

• State payroll tax registration
• Ensure compliance with federal, state, and local payroll laws and regulations
• Support payroll tax filings, audits, and reconciliations in partnership with external providers
• Prepare and review payroll reports, including variance analysis and GL reconciliations
• Assist with year-end activities including W-2 processing and audits

Systems & Process Improvement

• Play an active role in the migration from UKG Pro to ADP payroll platform, including parallel testing and data validation
• Collaborate on HiBob HRIS implementation to ensure seamless payroll integration
• Identify opportunities to automate payroll and accounts payable processes
• Drive process optimization initiatives across payroll workflows and controls

Cross-Functional Collaboration

• Partner closely with the People Team on employee lifecycle events impacting payroll
• Work with Finance & Accounting on payroll-related journal entries and reconciliations
• Coordinate with external vendors (ADP, Principal, Bswift) for issue resolution and process alignment

The Winning Recipe

Required

• Bachelor's degree in Accounting, Finance, HR, or related field (or equivalent experience)
• 3–5 years of experience in US payroll processing
• Hands-on experience with UKG Pro (or similar payroll systems)
• Experience with ADP Workforce Now (or similar ADP platforms)
• Strong understanding of US FLSA
• Experience managing multi-state payroll and hourly/non-exempt populations
• Proficiency in Excel (pivot tables, lookups, data validation)

Preferred

• Exposure to HiBob or other modern HRIS systems
• Experience with benefits platforms such as Bswift
• Familiarity with 401(k) administration (Principal preferred)
• Experience supporting payroll system implementations or migrations
• CPP or similar certification

Key Competencies

• Exceptional attention to detail and accuracy
• Strong analytical and problem-solving skills
• Ability to manage sensitive and confidential information
• Excellent communication and cross-functional collaboration skills
• Ability to prioritize and meet deadlines in a fast-paced environment
• Continuous improvement mindset with interest in automation and AI-driven efficiencies

The Extras

Working at Slice comes with a comprehensive set of benefits, but here are some of the unexpected highlights:

• Flexible PTO
• Market leading medical, vision and dental insurance
• 401K matching up to 4%
• Wellness reimbursement/stipend
• Weekly pizza stipend (Yes, that's a thing!)

Salary Range: $75-$95k + benefits

The above represents the expected salary range for this job requisition. Ultimately, in determining your pay, we'll consider your location, experience, and other job-related factors.

The Hiring Process

You'll find a summary of your expected interview process below. We'll stick to this as closely as possible, but please note this may be subject to change.

• Application
• 30 minute introductory meeting with Recruiter
• 30 minute Hiring Manager meeting
• 30 minute panel interview
• 30 minute final leadership interview
• Offer!

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