Payroll Administrator

Payroll Administrator, Part-Time

Workplace Type: Primarily remote, with occasional on-site presence as needed

Reports To: Director of Finance

Position Summary

The Payroll Administrator is responsible for the accurate and timely processing of payroll for a workforce that includes full-time salaried employees and a high volume of part-time, hourly, and seasonal employees across multiple sites, pay rates, and funding sources.

This is a hands-on, detail-oriented position for an experienced payroll professional who can work independently, consistently meet deadlines, and handle confidential employee information with discretion.

This is not an entry-level or training position. The successful candidate must have previous end-to-end payroll processing experience and demonstrated proficiency with ADP Workforce Now and payroll integration file uploads into QuickBooks Online.

Key Responsibilities

Payroll Processing

• Process biweekly payroll in ADP, including timekeeping review, payroll funding, and post-payroll reporting.
• Review and reconcile employee timecards.
• Follow up with supervisors regarding missing punches, unapproved time, and scheduling discrepancies before payroll deadlines.
• Administer pay changes, new hires, terminations, final pay, retroactive adjustments, and off-cycle payments in accordance with applicable wage and hour laws.
• Maintain accurate employee records in ADP, including tax withholdings, direct deposit information, wage garnishments, and deduction elections.
• Track and apply paid leave accruals and usage in accordance with organizational policies and applicable state requirements.

Compliance and Reporting

• Ensure payroll practices comply with federal and state wage and hour regulations, including overtime, minimum wage, minor labor requirements, and recordkeeping obligations.
• Coordinate quarterly and annual filings, W-2 production, and ACA reporting through ADP.
• Support workers’ compensation audits, retirement plan census and testing activities, and annual financial audits by preparing requested payroll schedules and documentation.
• Reconcile payroll activity to the general ledger.
• Support the allocation of labor costs across programs, locations, and grant-funded budgets.

Records and Employee Support

• Maintain complete, organized, and confidential payroll records in accordance with applicable retention requirements.
• Respond to employee payroll questions promptly and professionally.
• Complete employment and wage verifications.
• Prepare responses to unemployment claims.
• Partner with leadership on payroll-related onboarding and offboarding activities, including I-9 completion and new hire reporting.
• Identify and recommend process improvements that reduce errors, manual work, and payroll cycle time.

Required Qualifications

• Minimum of three years of hands-on payroll processing experience, including full-cycle responsibility for a multi-employee payroll.
• Demonstrated proficiency with ADP. Candidates should be prepared to discuss the specific ADP modules and workflows they have used.
• Working knowledge of federal and Connecticut payroll tax, wage and hour, and leave regulations.
• Strong Excel skills, including the ability to create and reconcile payroll reports.
• Proven ability to maintain accuracy while working under recurring, non-negotiable deadlines.
• Ability to handle confidential compensation and personnel information with absolute discretion.
• Ability to work independently in a remote environment with minimal supervision.
• Availability and responsiveness during core business hours on payroll processing days.
• Ability to successfully complete a comprehensive background screening, including criminal history and applicable registry checks.

Preferred Qualifications

• Payroll experience in a nonprofit environment, particularly involving grant-funded positions and labor cost allocation across multiple funding sources.
• Experience processing payroll for a large part-time, hourly, or seasonal workforce.
• Familiarity with 403(b) retirement plan administration and nonprofit audit support.
• Fundamental Payroll Certification, FPC, or Certified Payroll Professional, CPP, designation.

Schedule and Work Environment

Hours are flexible within the business week, with availability structured around the payroll calendar and established payroll deadlines.

Work is performed primarily remotely. Occasional on-site attendance may be required for onboarding documentation, records access, or periodic meetings. The employee must have reliable internet access and a secure, private workspace suitable for handling confidential payroll and personnel information.

Job Type & Location

This is a Contract to Hire position based out of Stamford, CT.

Pay and Benefits

The pay range for this position is $35.00 - $35.00/hr.

Individual compensation offered for this position within this range will depend on many factors, including qualifications, skills, relevant experience, job knowledge, geographic location, internal equity, and other pertinent job-related factors.

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 remote position.

Application Deadline

This position is anticipated to close on Sep 15, 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® Platinum Award 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 astoncarteraccommodation@astoncarter.com 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.