Client Billing Coordinator

The Client Billing Coordinator serves as the primary point of contact between our finance team and clients, ensuring billing accuracy and timely resolution of account issues. This role is ideal for someone who is personable, organized, and comfortable advocating on behalf of both the client and the company. You will play a key role in managing client billing relationships — including a high-profile account with General Motors — tracking down discrepancies, and keeping internal teams informed when action is needed. Serve as the day-to-day liaison between clients and internal finance/accounting teams to resolve billing questions, discrepancies, and outstanding balances Manage General Motors billing through an API portal, including tracking submissions, identifying errors, and following up to ensure timely processing Proactively contact clients with overdue or unresolved accounts and confidently follow up until resolution is reached Investigate billing discrepancies and work cross-functionally to correct errors and escalate issues to the appropriate teams Process invoices, credit memos, payments (check and credit card), and account updates in Salesforce and Sage Reconcile accounts in a timely and accurate manner and flag inconsistencies to management Prepare internal reports and statements to help teams monitor billing status and outstanding items Support internal and external audits by organizing and providing relevant documentation Perform data entry and general administrative tasks related to billing and account management Handle all client and company information with strict confidentiality Demonstrate a commitment to Diversity, Equity, and Inclusion by treating all clients and colleagues with respect and dignity Qualifications 1–2 years of experience in billing, accounts receivable, customer service, or a related field Bachelors degree in Accounting, Business, or a related field preferred but not required Experience with Salesforce required; Sage and/or Excel experience a plus Strong interpersonal and communication skills — comfortable building relationships and having difficult conversations with clients when needed Highly organized with strong attention to detail and the ability to track multiple accounts simultaneously Comfortable working with API-based billing portals or similar systems (training provided) Self-starter who takes initiative and proactively brings issues to the team's attention