Accounts Payable Specialist

The Accounts Payable Specialist will support the Freight team while playing a key role in supporting a transportation and logistics organizations invoice audit and network optimization initiatives. In this position, you manually review carrier and courier invoices, validate charges against contracted pricing and shipment data, and identify billing discrepancies before payment is released. You use strong Excel skills and a deep understanding of transportation-related costs to ensure accurate billing, document audit findings, and help standardize and improve the invoice review process. Responsibilities + Review and audit freight, trucking, courier, and transportation invoices to ensure accuracy and compliance with agreed-upon terms. + Validate invoiced charges against carrier contracts, rate agreements, shipment records, and internal transactional data. + Confirm that the appropriate carrier, service level, and equipment size were used for each shipment based on operational and contractual requirements. + Review base rates, hourly charges, fuel surcharges, accessorial fees, stop charges, and other transportation-related costs to verify correctness. + Identify discrepancies such as incorrect rates, duplicate invoices, unsupported charges, inaccurate surcharges, and billing outside of contracted terms. + Compare invoice information against internal system data and Excel-based reports to detect inconsistencies and errors. + Maintain accurate audit logs and document the status, root cause, and resolution of identified discrepancies. + Categorize invoice exceptions and escalate recurring or complex issues to the appropriate internal teams for further investigation. + Partner with transportation, finance, operations, and carrier contacts to research and resolve billing questions and disputes. + Prepare clear summaries and supporting documentation related to audit findings for use in reporting and decision-making. + Document current audit procedures and observations to support future process improvements, standardization, and automation of the invoice review process. + Assist with additional freight analysis and transportation-related projects as needed to support broader logistics and cost-optimization efforts. Essential Skills + Previous experience in freight audit, transportation billing, logistics, supply chain, accounts payable, invoice reconciliation, or a closely related area. + Strong proficiency in Microsoft Excel, including filtering, sorting, using formulas, and working with large data sets. + Ability to accurately compare information across invoices, contracts, rate sheets, and transactional records. + Strong analytical and problem-solving skills for identifying issues and determining appropriate resolutions. + Exceptional attention to detail and a strong commitment to accuracy in financial and operational data. + Ability to identify patterns, discrepancies, and unsupported charges within high volumes of invoices. + Strong organizational skills with the ability to manage a high volume of invoices and competing priorities effectively. + Clear written and verbal communication skills for documenting findings and collaborating with internal and external stakeholders. + Ability to work independently while effectively collaborating with cross-functional teams. + Ability to work on-site in Green Bay and travel to Appleton for initial training. Additional Skills & Qualifications + Experience reviewing freight invoices or working within freight payment operations. + Familiarity with trucking, courier, final-mile, less-than-truckload (LTL), or dedicated transportation operations. + Understanding of transportation rate structures, including fuel surcharges, accessorial charges, stop charges, hourly billing, and equipment-related pricing. + Intermediate Excel skills, such as building and using PivotTables and applying XLOOKUP or VLOOKUP functions. + Experience working with transportation management systems, ERP platforms, billing systems, or accounts payable systems. + Previous experience documenting processes or supporting workflow improvement and standardization initiatives. + Background in invoicing, invoice processing, data entry, Excel data entry, accounts payable, freight billing, and freight cost analysis. + Exposure to 3PL environments and transportation, logistics, and freight bill management. Work Environment This role is based on-site in Green Bay and follows a MondayFriday schedule from 8:00 a.m. to 5:00 p.m. Initial training and occasional travel to Appleton are required. You work in a professional office environment using Microsoft Excel, internal transportation and billing systems, and other standard business tools to review and analyze freight invoices and related data. The setting supports collaboration with transportation, finance, operations, and carrier contacts while focusing on accuracy, process improvement, and efficient invoice management. Job Type & Location This is a Contract position based out of Appleton, WI. Pay and Benefits The pay range for this position is $23.00 - $27.00/hr. Individual compensation offered for this position within this range will depend on many factors, including qualifications, skills, relevant experience, job knowledge, geographic location, internal equity, and other pertinent job-related factors. Eligibility requirements apply to some benefits and may depend on your job classification and length of employment. Benefits are subject to change and may be subject to specific elections, plan, or program terms. If eligible, the benefits available for this temporary role may include the following: Medical, dental & vision Critical Illness, Accident, and Hospital 401(k) Retirement Plan Pre-tax and Roth post-tax contributions available Life Insurance (Voluntary Life & AD&D for the employee and dependents) Short and long-term disability Health Spending Account (HSA) Transportation benefits Employee Assistance Program Time Off/Leave (PTO, Vacation or Sick Leave) Job Type & Location This is a Contract position based out of Appleton, WI. Application Deadline This position is anticipated to close on Oct 30, 2026. Workplace Type This is a hybrid position in Appleton,WI. About Aston Carter Aston Carter provides world-class corporate talent solutions to thousands of clients across the globe. Specialized in accounting, finance, human resources, talent acquisition, procurement, supply chain and select administrative professions, we extend the capabilities of industry-leading companies. We draw on our deep recruiting expertise and expansive network to meet the evolving needs of our clients and talent community with agility and excellence. With offices across the U.S., Canada, Asia Pacific and Europe, Aston Carter serves many of the Fortune 500. We are proud to be a ClearlyRated Best of Staffing® Platinum Award winner for both client and talent service. The company is an equal opportunity employer and will consider all applications without regard to race, sex, age, color, religion, national origin, veteran status, disability, sexual orientation, gender identity, genetic information or any characteristic protected by law. If you would like to request a reasonable accommodation, such as the modification or adjustment of the job application process or interviewing process due to a disability, please email View email address on click.appcast.io (%View email address on click.appcast.io) for other accommodation options. San Francisco Fair Chance Ordinance: Pursuant to the San Francisco Fair Chance Ordinance, for all positions located in the city and county of San Francisco, we will consider for employment qualified applicants with arrest and conviction records. Massachusetts Lie Detector: It is unlawful in Massachusetts to require or administer a lie detector test as a condition of employment or continued employment. An employer who violates this law shall be subject to criminal penalties and civil liability. Use of Artificial Intelligence (AI): We may use Artificial Intelligence (AI) to support parts of our hiring process, including sourcing, screening, and evaluating candidates. AI helps assess applications and qualifications, but final decisions are made by our hiring team. By applying, you acknowledge and agree that your application may be reviewed using AI tools.