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Job summary

Process bi-weekly payroll, client billing, invoices, employee expenses, payroll changes, and related entitlements accurately and on time. Maintain payroll and billing records, investigate discrepancies, support accounts receivable and payment follow-up, prepare reports, assist with month- and year-end activities, and respond confidentially to inquiries.

Job details

Billing & Payroll Administrator | Part-Time | Primarily Remote | $24.00 per hour Our team is growing, and we’re looking for an experienced, highly organized Billing & Payroll Administrator who takes pride in accuracy, values being part of a supportive team, and wants their work to have real purpose. This is a part-time, primarily remote position, with occasional attendance at our St. Catharines office for training, meetings and operational needs. The Opportunity As our Billing & Payroll Administrator, you’ll be entrusted with the accurate and timely processing of payroll, client billing and related financial administration. You’ll work closely with Operations and Human Resources while helping ensure our employees are paid accurately and our clients receive timely, accurate billing. We’re looking for someone who is dependable, meticulous, and confident working independently, but who also enjoys being part of a collaborative team where people genuinely care about one another and the work, they do. What You’ll Be Doing · Process bi-weekly payroll using ADP Workforce Now, accurately and on time · Complete client billing and invoicing for private-pay and funded programs · Process employee mileage, expenses, and payroll adjustments · Track vacation, sick time, statutory holiday pay and other payroll-related entitlements · Process payroll changes, including new hires, terminations, and wage adjustments · Maintain accurate employee and payroll information in ADP and other company systems · Review payroll and billing information, investigate discrepancies, and make necessary corrections · Support accounts receivable, payment tracking and follow-up on outstanding invoices · Prepare payroll, billing and financial reports and assist with month-end and year-end activities · Respond professionally to payroll and billing inquiries while maintaining strict confidentiality What You’ll Bring You have a minimum of three years of experience in payroll, billing or financial administration, and experience with ADP Workforce Now is required. Just as importantly, you’re someone who notices the details. You follow through. People can depend on you. You understand the importance of confidentiality, and you enjoy being part of an organization where your contribution is recognized and valued. Why Us? Because this is more than numbers, invoices, and payroll. We’re proud of the culture we’re building—professional, supportive, collaborative, and genuinely people-focused. If you’re looking for a flexible part-time opportunity where you can bring your expertise to an established organization, work with a great team, and know that what you do matters, we’d love to hear from you. No AI is used as part of the hiring process

What you’ll do

Process bi-weekly payroll, client billing, invoices, employee expenses, payroll changes, and related entitlements accurately and on time. Maintain payroll and billing records, investigate discrepancies, support accounts receivable and payment follow-up, prepare reports, assist with month- and year-end activities, and respond confidentially to inquiries.

Requirements

At least three years of experience in payroll, billing, or financial administration is required, along with experience using ADP Workforce Now. The role also calls for accuracy, dependability, follow-through, confidentiality, and the ability to work independently as part of a collaborative team.

Listed skills

• ADP Workforce Now · Preferred
• Financial Reporting · Preferred
• Attention to detail · Preferred
• Accounts receivable · Preferred
• invoicing · Preferred

Other relevant skills

Identified from the job description. Confirm important requirements above.

• Payroll Processing
• Client Billing
• Invoicing
• ADP Workforce Now
• Expense Processing
• Payroll Adjustments
• Payroll Entitlements Tracking
• Employee Records Management
• Discrepancy Investigation
• Accounts Receivable
• Payment Tracking
• Financial Reporting
• Month-End Activities
• Year-End Activities
• Confidentiality
• Attention to Detail

Job areas

• Finance & Accounting
• Human Resources
• Administrative
• Healthcare