Billing & Accounting Specialist

Harms Oil Company•Aberdeen, SD

About The Position

The Billing & Accounting Specialist supports day-to-day billing operations and the pricing, contract, and setup teams. Reporting to the Controller, the role validates bills of lading against vendor invoices to generate accurate customer billing and performs general accounting functions, including terminal price entry, customer setup, and bulk fuel inventory reconciliation. The position is full-time and hourly, is located in Sioux Falls, South Dakota, and has no direct reports. The role is divided approximately equally between fuel billing and accounting support and data integrity. It involves reconciling delivery and invoice records, supporting specialized customer accounts, maintaining pricing and customer/vendor data, analyzing inventory variances, and assisting with accounting procedures and month-end close preparation.

Requirements

Two or more years of experience in billing, accounts receivable, or another data-driven role.
Intermediate to advanced Microsoft Excel skills, including data matching, formulas, and analysis.
High mathematical precision and strong attention to detail when working with high-volume transaction sets.
Ability to shift effectively between structured billing timelines and ad hoc data entry while maintaining accuracy and meeting deadlines.

Nice To Haves

Experience in wholesale fuel, petroleum distribution, trucking, or bulk logistics.
Proficiency in PDI Enterprise; experience with a comparable industry-specific fuel ERP is also valued.

Responsibilities

Calculate and generate accurate customer invoices by auditing and matching bills of lading, driver delivery tickets, and dispatch logs.
Cross-reference terminal paperwork to verify billed gallon quantities, fuel types, and freight surcharges against completed deliveries.
Audit vendor and supplier invoices against internal records and research and resolve cost discrepancies.
Support specialized accounts involving customized pricing formulas, third-party logistics agreements, and contracts.
Reconcile monthly physical and terminal fuel inventory logs against sales invoices and purchase orders.
Track and analyze inventory variances or product shrinkage.
Enter and maintain daily index and rack pricing across systems and promptly research pricing anomalies.
Partner with the setup team to establish new customer and vendor profiles accurately and efficiently in the database.
Assist the Controller with maintaining internal SOPs.
Provide backup support for accounting team members and assist with month-end close preparation as needed.