Invoice Billing & Vendor Coordinator (EST Hours) - Remote Invoice Billing & Vendor Coordinator (EST Hours) - Remote ISTA Personnel Solutions South Africa - we are a global BPO company, partnering with a US-based Waste Services Brokerage Company. We're looking for a detail-oriented Invoice Billing & Vendor Coordinator who will play a critical role in identifying billing errors, correcting discrepancies with subcontractors, and supporting clean, timely invoicing to clients.This is a back-office, admin-heavy role that requires precision, follow-through, and clear communication — especially when coordinating with multiple vendors and cross-checking records.PLEASE NOTE: Working Hours: This role requires you to work in USA hours Mon - Fri from 9am to 6pm EST (15h00pm to midnight South African time, however these hours are subject to change depending on daylight savings). Work Environment: This is a remote role for South African Citizens only. Internet Requirements: A fixed fibre line with a ...