Mannix Marketing is a fully remote digital marketing and web development agency based in Upstate New York. We are looking for an experienced AR and billing contractor to support our CFO and accounting team on a part-time basis. This is a recurring engagement with consistent monthly deadlines and a defined set of tasks. The right person is highly proficient in QuickBooks Online, works independently without daily oversight, and communicates proactively when issues arise.
What You’ll Do
Manage past-due accounts through the QBO Collections Center, including weekly customer outreach, statement distribution, and response to customer replies
Record all incoming payments in QBO (paper checks, Authorize.net e-checks, and credit card payments) and make corresponding deposits
Run recurring billing reports, distribute to managers on schedule, and handle new customer billing, changes, and cancellations in QBO as needed
Set up and maintain Automated Recurring Billing (ARBs) and recurring transactions, including price updates
Enter vendor and contractor bills into the QBO Vendor Center; collect and file W-9s; enter referral partner commissions for CFO processing
File employee credit card receipts and enter charges into QBO
Prepare monthly, quarterly, and other reports as needed, such as, but not limited to, the Tourism billing report, Sales Tax Quarterly Gross Up Report, and ad spend reconciliation
Enter end-of-month commission data and perform commission sheet audits
Enter scorecard data and complete NYS Contract System audits as needed
Audit domain names and Google accounts billed through Mannix; confirm they are memorized and invoiced
Participate in periodic check-ins with the finance team as needed
Document billing activities and client updates in the company CRM (Admin)
3+ years of hands-on QuickBooks Online experience, including custom report creation, recurring and memorized transactions, the Collections Center, Automated Recurring Billing (ARBs), and Vendor Center Management
Proficient in Google Drive and Google Sheets, including formula creation and data organization
Direct accounts receivable experience with customer-facing collections work
Able to manage a recurring, deadline-driven task load independently
Strong attention to detail; follows up on discrepancies without being prompted
U.S.-based and legally authorized to work in the United States
Consistent weekly availability
Remote
$20/hour DOE
Part-time, approximately 4-6 hours per day with potential for additional hours
Skills Required
- 3+ years of hands-on QuickBooks Online experience, including custom report creation, recurring/memorized transactions, Collections Center, Automated Recurring Billing (ARBs), and Vendor Center management
- Direct accounts receivable experience with customer-facing collections work
- Experience recording incoming payments (paper checks, Authorize.net e-checks, credit cards) and making deposits in QuickBooks Online
- Proficient in Google Drive and Google Sheets, including formula creation and data organization
- Able to manage a recurring, deadline-driven task load independently and communicate proactively
- Strong attention to detail; follows up on discrepancies without being prompted
- U.S.-based and legally authorized to work in the United States (no visa sponsorship)
- Consistent weekly availability; part-time approximately 4-6 hours per day
- Experience preparing monthly/quarterly billing and reconciliation reports (sales tax gross-up, ad spend reconciliation, commission audits)
- Familiarity with documenting billing activities in a CRM (Admin) and performing periodic audits (e.g., NYS Contract System audits)
What We Do
Mannix Marketing is an award-winning digital marketing agency founded in 1996. The company specializes in search engine optimization (SEO), responsive website design, and paid search campaigns to help businesses of all sizes increase leads, visibility, and measurable growth. They provide a full suite of online marketing services, from content strategy to social media management, focusing on delivering results that surpass expectations for their clients.
