Billing Analyst Overview The Senior Billing Analyst will support high-volume, complex billing operations across multiple business units. This role will collaborate closely with payroll, Concur, and other internal teams to ensure timely and accurate invoice processing. The position requires strong organizational skills, advanced Excel capabilities, and the ability to manage detailed, multi-line invoice structures. Key Responsibilities + Process 220+ manual invoices each month + Prepare billing for 7 separate companies currently serviced by the team + Handle highly complex invoice structures, ranging from single-line invoices to 50+ line items + Collaborate cross-functionally with payroll and Concur teams to validate billable expenses + Assist in distributing billing workload as the team explores splitting responsibilities + Maintain accuracy and consistency in all billing deliverables + Track, organize, and maintain supporting documentation for all invoicing + Identify discrepancies and collaborate with appropriate groups to resolve issues + Support continuous improvement of billing workflows and processes Required Skills & Qualifications + Strong organizational skills and ability to manage detailed, high-volume work + Advanced proficiency in Excel, including use of templates and formulas + Experience working cross-functionally with payroll and expense management teams + Ability to work efficiently in a manual billing environment + Strong attention to detail and commitment to accuracy Preferred Skills + Experience with AX (Microsoft Dynamics AX) + Experience handling complex, multi-entity billing structures Job Type & Location This is a Contract to Hire position based out of Norwalk, CT. Pay and Benefits The pay range for this position is $27.00 - $30.00/hr. 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) Workplace Type This is a fully onsite position in Norwalk,CT. Application Deadline This position is anticipated to close on Feb 26, 2026. 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® double diamond 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 astoncarteraccommodation@astoncarter.com (%20astoncarteraccommodation@astoncarter.com) for other accommodation options.