Senior Accounts Receivable Specialist

Cennox

18h

About The Position

We are seeking an experienced Sr. Accounts Receivable Specialist with a strong foundation in Order Management to join our Finance team. This is a critical investigative role at the intersection of billing accuracy, contract compliance, and the Order-to-Cash cycle. The ideal candidate brings deep hands-on experience reviewing purchase orders, customer contracts, and service work orders – and knows how to trace billing discrepancies back to their operational root cause. This role goes beyond standard A/R collections. You will serve as the primary investigator for complex invoice disputes, working cross-functionally with Order Management, Service Operations, Logistics, Sales Operations, and Finance to ensure every invoice accurate reflects completed services, agreed-upon pricing, and contractual terms.

Requirements

4-6+ years of experience in Accounts Receivable, Billing, or Order-to-Cash operations, with demonstrated exposure to order management processes.
Proven experience investigating invoice discrepancies that originate in order management – including PO mismatches, pricing variances, service completion issues, and contract deviations.
Background in service-based, field service, or contract-driven billing environments strongly preferred.
Experience working cross-functionally with Order Management, Service Operations, or Logistics teams to resolve billing and order issues.
Deep investigative capability – ability to trace billing issues through the full order lifecycle to identify root causes.
Proficiency in reviewing purchase orders, customer contracts, and service documentation to validate billing accuracy.
Strong experience resolving complex, multi-stakeholder invoice disputes with full documentation and proper escalation.
Customer account reconciliation expertise, including handling of unapplied cash, short payments, and deductions.
Collections experience with professional customer communication skills across phone and email channels.
High attention to detail with the ability to manage multiple investigations simultaneously without sacrificing accuracy.
Proficiency in Microsoft Excel and ERP systems (Oracle, SAP, or similar).
Vision correctable to 20/20.
Finger dexterity for keyboarding and computer usage.
Ability to sit and stay focused for long periods of time.

Nice To Haves

Direct experience in service-based or field service billing environments.
Familiarity with Order-to-Cash process architecture and how order management decisions affect billing output.
Experience with dispute management workflows and credit/debit memo processing.
Ability to analyze data trends across disputes to identify operational improvement opportunities.

Responsibilities

Own end-to-end investigating of billing discrepancies rooted in order management processes – including purchase order mismatches, service completion gaps, pricing variances, and contract deviations.
Review and validate purchase orders, customer contracts, service work orders, and installation documentation to confirm billing eligibility prior to dispute resolution.
Trace invoice errors to their point of origin in the order lifecycle – from order entry and pricing setup through service execution and billing output.
Identify systemic order management issues driving repeat billing disputes and escalate process gaps with documented root cause findings.
Partner closely with Order Management and Service Operations teams to close the loop between field execution and billing accuracy.
Monitor and manage customer aging reports to ensure timely collection of outstanding balances across a complex, high-volume portfolio.
Conduct practice outreach via phone and email to follow up on past-due invoices, with emphasis on dispute-driven payment delays.
Maintain accurate documentation of all customer communications, payment commitments, and collection activity.
Develop customer-specific collection strategies informed by account history, dispute patterns, and contractual payment terms.
Lead resolution complex invoice disputes from investigation through closure – ensuring proper documentation, stakeholder alignment, and timely correction.
Issue credit and debit memos following thorough investigation; validate all adjustments with appropriate internal stakeholders before processing.
Maintain accurate records of account adjustments, dispute history, and resolution outcomes for audit and reporting purposes.
Reconcile customer accounts to identify and resolve unapplied cash, short term payments, deductions, and disputed balances.
Clear resolved items promptly to ensure accurate aging balances and clean account records.
Investigate discrepancies between invoices, customer remittances, and internal payment records.
Act as a liaison between Finance and operational teams – translating billing requirements, contract terms, and dispute findings into actionable resolutions.
Support Order Management, Logistics, and Sales Operations in understanding how execution decisions impact billing outcomes.
Participate in cross-functional process improvement initiatives aimed at reducing invoice error rates and dispute volumes.
Document recurring dispute root causes and drive recommendations for improvements to billing processes, order entry standards, and contract setup.
Assist in developing and maintaining standard operating procedures (SOPs) for A/R investigation and dispute handling workflows.
Contribute to initiatives that improve invoice accuracy, shorten dispute resolution cycles, and strengthen the overall Order-to-Cash process.
All other duties as assigned