The Senior Accounts Receivable Specialist is responsible for managing accounts receivable activities, client invoicing, collections, cash application, billing reconciliation, and revenue support for clinical research and biometrics services. This role requires hands-on experience in a CRO environment and a strong understanding of billing processes for biometrics-related services, including biostatistics, statistical programming, data management, medical writing, and related project-based deliverables.

The ideal candidate is detail-oriented, organized, proactive, and capable of working closely with project managers, functional leaders, contracts, and finance teams to ensure timely and accurate invoicing, payment follow-up, and resolution of billing issues.

Essential Functions and Responsibilities

• Prepare, review, and issue accurate client invoices in accordance with contracts, work orders, change orders, fee schedules, and project milestones.
• Manage billing for CRO and biometrics services, including time-and-materials, unit-based, milestone-based, retainer, and fixed-fee arrangements.
• Review project financial information and supporting documentation to ensure invoices are complete, accurate, and supported by contractual terms.
• Work closely with project managers, biometrics functional leads, contracts, and finance teams to confirm billable activities, invoice timing, and scope changes.
• Monitor accounts receivable aging and follow up on outstanding invoices in a timely and professional manner.
• Communicate with clients regarding invoice status, payment timing, discrepancies, remittance details, and billing questions.
• Apply cash receipts accurately and reconcile payments to open invoices.
• Investigate and resolve billing discrepancies, short payments, unapplied cash, disputed invoices, and client deductions.
• Maintain accurate AR records, customer account details, invoice tracking logs, and collection notes.
• Support month-end and year-end close activities related to invoicing, AR balances, unapplied cash, and bad debt review.
• Assist in preparing AR reports, aging summaries, DSO tracking, collection forecasts, and management reports.
• Coordinate with internal stakeholders on contract amendments, change orders, purchase orders, and client-specific billing requirements.
• Support audit requests by providing invoice support, AR reconciliations, and related documentation.
• Help improve billing workflows, collections processes, and internal controls to enhance efficiency and accuracy.

CRO / Biometrics Billing Responsibilities

• Review biometrics service agreements, budgets, and work orders to understand billing triggers and project scope.
• Prepare invoices for services such as biostatistics, statistical programming, clinical data management, PK/PD programming, medical writing, DMC support, and other biometrics-related deliverables.
• Track milestone completion and percentage-of-completion inputs, where applicable, for billing purposes.
• Validate labor-based and deliverable-based charges against approved rates, effort assumptions, and change orders.
• Coordinate with project teams to ensure out-of-scope work is properly documented and billed.
• Maintain billing files and supporting records for sponsor-specific invoicing requirements.
• Assist in reconciling contracted services, billed amounts, and collections across ongoing studies and programs.
• Frequent interaction with finance, project management, functional leaders, and external clients.