Payroll Administrative Assistant

Job Title: Payroll Administrator
Job Description
The Payroll Administrator oversees accurate and timely payroll processing for a large, multi-state employee population. This role reviews time and attendance data, prepares payroll adjustments and commissions, and supports all aspects of payroll processing while maintaining strict confidentiality. The Payroll Administrator works closely with a Payroll Specialist to ensure employees are paid correctly and on schedule, and provides responsive support to employee payroll inquiries.
Responsibilities

• Review timesheets and attendance records for accuracy and completeness before each payroll run.
• Send separation request forms to the appropriate division for all separation inquiries and support the Payroll Specialist in obtaining completed separation documents.
• Calculate payroll adjustments, including overtime, bonuses, and deductions, with guidance and direction from the Payroll Specialist as needed.
• Prepare and calculate commission payments and review them with the Payroll Specialist prior to upload and processing.
• Assist with preparing payroll reports and statements for internal review and audit purposes.
• Respond promptly and professionally to payroll-related inquiries from employees and resolve payroll issues in a timely manner.
• Reconcile payroll discrepancies and collaborate closely with the Payroll Specialist to research and resolve any payroll-related matters.
• Assist and support with year-end payroll processing, including the preparation of W-2 and other tax-related forms, and communicate with current and former employees regarding their W-2 inquiries.
• Maintain confidentiality at all times and ensure the security and integrity of payroll and employee data.
• Serve as a backup payroll processor to ensure accurate and timely payment of hourly, salaried, and commission-based compensation.
• Support biweekly payroll processing for multiple payroll cycles, contributing to weekly processing cadence for a workforce of approximately 650 employees.
• Follow established payroll procedures while demonstrating a willingness to learn and adapt to new processes and system enhancements.

Essential Skills

• 3+ years of payroll processing experience, preferably in a multi-state environment.
• Proven experience as a Payroll Clerk or in a similar payroll-focused role.
• Hands-on experience with biweekly payroll processing and familiarity with multiple payroll cycles.
• Familiarity with payroll software such as Paycom, UKG, Paychex, ADP, QuickBooks, or similar systems.
• Proficiency in Microsoft Excel and other standard office software.
• Exceptional attention to detail and a high degree of accuracy in data entry and calculations.
• Excellent organizational and time management skills, with the ability to meet recurring payroll deadlines.
• Strong verbal and written communication skills and the ability to interact professionally with employees at all levels.
• Ability to handle sensitive and confidential payroll and employee information with discretion and integrity.
• Demonstrated willingness to learn and be trained on established payroll processes and systems.

Additional Skills & Qualifications

• High school diploma or equivalent.
• Additional education in accounting, finance, or a related field is a plus.
• Experience working with Paycom is highly preferred.
• Experience supporting payroll for a workforce of approximately 650 employees or similar scale.
• General understanding of payroll concepts, including overtime, bonuses, commissions, deductions, and year-end tax forms such as W-2.
• Strong interpersonal skills and a customer-service mindset when addressing employee payroll questions.

Work Environment
This position operates in a professional office environment that relies heavily on payroll and office software tools. The Payroll Administrator works primarily on a computer using payroll platforms such as Paycom or similar systems, along with Microsoft Excel and other office applications. The role supports biweekly payroll for two different cycles, resulting in payroll processing activities every week, and requires consistent attention to deadlines and accuracy. The work involves regular collaboration with a Payroll Specialist and other internal departments, as well as direct communication with employees regarding payroll matters. The environment emphasizes confidentiality, data security, and adherence to established payroll procedures while encouraging continuous learning and process improvement.
Job Type & Location
This is a Contract to Hire position based out of Commerce, CA.
Pay and Benefits
The pay range for this position is $30.00 - $34.00/hr.
Eligibility requirements apply to some benefits and may depend on your job classification and length of employment. Benefits are subject to change and may be subject to specific elections, plan, or program terms. If eligible, the benefits available for this temporary role may include the following:
• Medical, dental & vision
• Critical Illness, Accident, and Hospital
• 401(k) Retirement Plan - Pre-tax and Roth post-tax contributions available
• Life Insurance (Voluntary Life & AD&D for the employee and dependents)
• Short and long-term disability
• Health Spending Account (HSA)
• Transportation benefits
• Employee Assistance Program
• Time Off/Leave (PTO, Vacation or Sick Leave)
Workplace Type
This is a fully onsite position in Commerce,CA.
Application Deadline
This position is anticipated to close on Jun 12, 2026.

About Aston Carter

Aston Carter provides world-class corporate talent solutions to thousands of clients across the globe. Specialized in accounting, finance, human resources, talent acquisition, procurement, supply chain and select administrative professions, we extend the capabilities of industry-leading companies. We draw on our deep recruiting expertise and expansive network to meet the evolving needs of our clients and talent community with agility and excellence. With offices across the U.S., Canada, Asia Pacific and Europe, Aston Carter serves many of the Fortune 500. We are proud to be a ClearlyRated Best of Staffing® double diamond winner for both client and talent service.

The company is an equal opportunity employer and will consider all applications without regard to race, sex, age, color, religion, national origin, veteran status, disability, sexual orientation, gender identity, genetic information or any characteristic protected by law.

If you would like to request a reasonable accommodation, such as the modification or adjustment of the job application process or interviewing process due to a disability, please email View email address on click.appcast.io for other accommodation options.

San Francisco Fair Chance Ordinance: Pursuant to the San Francisco Fair Chance Ordinance, for all positions located in the city and county of San Francisco, we will consider for employment qualified applicants with arrest and conviction records.

Massachusetts Lie Detector: It is unlawful in Massachusetts to require or administer a lie detector test as a condition of employment or continued employment. An employer who violates this law shall be subject to criminal penalties and civil liability.

Use of Artificial Intelligence (AI): We may use Artificial Intelligence (AI) to support parts of our hiring process, including sourcing, screening, and evaluating candidates. AI helps assess applications and qualifications, but final decisions are made by our hiring team. By applying, you acknowledge and agree that your application may be reviewed using AI tools.