Billing Specialist - EST Working Hrs (Remote)

ISTA Personnel Solutions is a fast-growing, global BPO company. We are not a recruitment agency — we operate as a dedicated extension of our U.S.-based clients' teams, delivering high-quality operational support with precision, efficiency, and professionalism.

Our client provides ABA (Applied Behaviour Analysis) therapy services and is seeking a highly organised and detail-oriented Billing Specialist with experience handling U.S. insurance claims, remits, denials, and billing follow-up. Prior ABA billing experience is highly advantageous. The ideal candidate is a quick learner, able to work efficiently across multiple insurance portals and manage claims resolution in a fast-paced environment.

Please Note:

• Working Hours: Monday – Friday | 9:00 AM – 6:00 PM EST (3:00 PM – 12:00 AM South African time, subject to daylight savings)
• Public Holidays: This role requires working on both South African and U.S. public holidays (compensation for SA public holidays in accordance with the BCEA).
• Internet Requirements: A fixed fibre line with a minimum speed of 25 Mbps (upload & download) and wired Ethernet capability is mandatory. Connections via Rain, LTE, 5G, or similar are not acceptable. Applicants without a fixed fibre line will not be considered.
• Power Backup: A reliable backup solution is required to manage load shedding and outages (UPS, inverter, solar, etc.). Applicants without a reliable backup solution will not be considered.
• Work Environment: Fully remote.

Key responsibilities

• Submit and manage USA insurance claims accurately and timeously.
• Follow up on unpaid, denied, or rejected claims.
• Work with insurance remits/EOBs and payment postings.
• Investigate and resolve billing discrepancies.
• Communicate with insurance companies regarding claims and denials.
• Maintain accurate billing records and documentation.
• Ensure payer requirements and authorisation guidelines are followed.
• Work across multiple insurance portals and systems.
• Escalate unresolved billing issues where necessary.
• Assist with revenue cycle and claims management processes.

• Previous experience in medical billing, insurance claims, or revenue cycle management.
• Experience handling claims, remits, denials, and insurance follow-ups.
• Strong administrative and organisational skills.
• Excellent attention to detail.
• Ability to multitask in a fast-paced environment.
• Strong problem-solving skills.
• Excellent English communication skills (written and verbal).
• Proficient in Microsoft Office (Word, Excel, Outlook).

Highly advantageous

• ABA billing experience.
• Experience supporting U.S.-based healthcare companies.
• Familiarity with U.S. insurance terminology and payer processes.
• Experience with Medicaid and commercial insurance claims.
• Experience working with behavioural health or therapy billing.
• Experience with billing platforms such as CentralReach, Kareo, AdvancedMD, or Tebra.

If you have not been contacted within 14 working days, please consider your application unsuccessful.