Client Support Representative (Remote, US)

About the Role We're growing the customer success function at a fintech startup. We're seeking a Client Support Representative who will be the first line of support for our clients. This role is critical in ensuring a seamless experience by handling incoming phone calls and support tickets with urgency and care. You'll also assist with daily operational reports and play a key role in identifying and escalating high-priority issues such as card declines, account access issues, and fraud. As a Client Support Representative, you'll work directly alongside our Customer Success Manager, supporting a growing portfolio of clients across commercial card and accounts payable products. You'll own day-to-day client interactions, help manage our inbound support line, and get hands-on exposure to every part of the payments stack we're building. Startup environment: You'll be doing real work from day one — not shadowing or ticket triaging. If you're looking for a place to build something and grow with it, this is that opportunity. Work arrangement: Fully remote (US) What You'll Do Support day-to-day client relationships across a portfolio of commercial card and accounts payable clients, under the guidance of the Customer Success Manager. Cover the inbound client support phone line during business hours — fielding questions, logging issues, and resolving common card operations problems independently. Handle first-level support requests: card issuance questions, authorization inquiries, tran