Hybrid NYC Client Billing Specialist

Moon Rabbit; New York (NY); Hybrid; USD 65,000 - 85,000; Full time

Benefits offered by this job

Hybrid work in NYC

Job summary

Moon Rabbit in New York City is seeking a detail-oriented Client Billing Coordinator to manage daily client billing for agency fees, media and out-of-pocket costs.

You’ll prepare invoices, track status and work with internal teams to ensure timely collection under the Senior Manager, Client Finance. This hybrid role requires three days in the office (Tue–Thu) and close collaboration with Accounting and Account teams.

Qualifications

• 1–3 years of experience in client billing, accounts receivable or a comparable finance support role; advertising agency or professional services experience preferred.
• Experience preparing invoices, managing purchase order requirements and following contractual billing schedules, with familiarity using Workamajig or a comparable project accounting system.
• Working proficiency in Excel, including lookups, filters, basic formulas and billing data reconciliation.
• Strong organizational skills and attention to detail, with the ability to manage multiple client accounts and recurring deadlines.
• Clear verbal and written communication skills and a collaborative, solution-oriented approach to resolving billing questions with internal teams and client contacts.

Responsibilities

• Maintain billing calendars and trackers for invoices, deadlines and approvals.
• Prepare client invoices in our ERP for agency fees, media and out-of-pocket costs.
• Submit approved invoices and retain submission records; resolve submission issues with AP contacts.
• Track invoice status and assist with collections under Senior Manager guidance.
• Escalate overdue balances and document follow-up actions.

Skills

Billing experience

Excel proficiency

Attention to detail

Communication skills

Collaboration

Tools

Workamajig

Job description

Moon Rabbit in New York City is seeking a detail-oriented Client Billing Coordinator to manage daily client billing for agency fees, media and out-of-pocket costs.

You’ll prepare invoices, track status and work with internal teams to ensure timely collection under the Senior Manager, Client Finance. This hybrid role requires three days in the office (Tue–Thu) and close collaboration with Accounting and Account teams.