Billing & Accounts Receivable

We are hiring for one of our clients, a rapidly scaling AI research organization, seeking an experienced Fractional Billing & Accounts Receivable (AR) Operations Specialist.

As the organization scales, this position will bring operational rigor to client invoicing, collections, revenue tracking, and reporting processes. The selected candidate will collaborate with internal stakeholders to strengthen billing workflows and improve financial visibility.

• Manage end-to-end client invoicing cycles (time-and-materials, milestone-based, and retainer models)
• Ensure accurate tracking of billable hours, project codes, and client-specific terms
• Partner with finance and operations stakeholders to validate invoice inputs
• Maintain documentation of billing policies and workflows

• Monitor outstanding invoices and manage collections professionally
• Lead client-facing communication regarding billing inquiries and payment follow-ups
• Maintain AR aging reports and provide cash flow visibility
• Identify payment delay trends and recommend process improvements

• Evaluate and improve billing systems and reporting workflows
• Support monthly revenue reconciliation and reporting
• Ensure compliance with contractual terms and internal controls

• 5+ years of experience in billing and AR operations
• Experience in professional services environments (consulting, legal, advisory, or similar)
• Strong understanding of:
• Time-based and project-based billing models
• AR aging and collections workflows
• Experience with accounting platforms (e.g., Quick Books, Net Suite, Xero, or similar)
• Strong attention to detail and process discipline
• Ability to work independently in a fractional capacity

• Experience supporting venture-backed or high-growth technology companies
• Familiarity with SaaS or AI services billing models
• Experience building billing processes in scaling environments
• Background in financial reporting or FP&A collaboration
• Fully remote

All qualified applicants will be considered without regard to race, religion, gender, sexual orientation, gender identity, national origin, age, disability, veteran status, or other legally protected characteristics. Reasonable accommodations are available upon request.