Administrative Billing Assistant

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We are seeking a highly motivated Billing Specialist for our Chicago, IL office to join the ABNA family. ABNA is seeking a detail-oriented and highly organized Administrative/Billing Assistant to support the Chicago office. This position plays a key role in processing billing, maintaining accounts receivable, and performing daily administrative operations that keep the office running smoothly. The ideal candidate is proactive, professional, and able to manage multiple priorities with efficiency and discretion.

• Prepare and process invoices and billing statements
• Perform billing-related data entry and maintain supporting documentation
• Send bill reminders and follow up with clients regarding outstanding invoices
• Receive and record payments; ensure accurate deposit tracking
• Research and resolve unbilled or mismatched billing items
• Collaborate with accounting staff in St. Louis to support company-wide billing needs
• Maintain accurate billing files in compliance with internal procedures

• Answer and route phone calls; provide professional customer service
• Prepare clear and accurate written correspondence
• Manage office filing systems (digital and physical)
• Assist with printing, copying, scanning, and document assembly
• Sort, distribute, and prepare incoming/outgoing mail and courier shipments
• Order and maintain office supplies
• Schedule meetings, travel arrangements, and conference logistics
• Assist with special projects requiring data collection, research, or document preparation
• Act as a liaison between Chicago staff and internal departments across ABNA

• Associate degree required;
  Bachelor’s degree preferred
• 2+ years administrative experience
• 1–2 years of billing, invoicing, or accounts receivable experience
• Proficiency in Microsoft Office (Excel, Word)
• Experience with accounting software (Quick Books, Ajera, Deltek) preferred
• Strong written and verbal communication skills
• Excellent organizational and multitasking ability
• High level of professionalism, discretion, and confidentiality

This is a full-time, in-person position. Days and hours of work are Monday through Friday, 8:00 a.m. to 5:00 p.m.

This is largely an office role; however, occasional out-of-office may be necessary. This would require the ability to sit for extended periods of time, to lift files, open filing cabinets, and bend, stand or walk as necessary both in the office and at offsite locations.

Chicago, Illinois

Competitive & commensurate with experience

Opportunity to participate in 401(k), medical, and other benefits after standard eligibility requirements are met.

• Email resume to  for immediate and confidential consideration.
• Applicants only. Recruiters – please do not contact this employer.
• Please do not contact employer about other services, products, or commercial interests.
• No phone calls about this job.
• Qualified candidates will be contacted for interview.