Backend Software Engineer (Senior/Staff)

Cardless engineers build the infrastructure behind modern credit cards, and backend engineers work on every layer of it: underwriting decisions, ledgers that have to balance to the cent, payment flows, rewards, risk controls, and the APIs our partners build on. We don’t put people in narrow lanes. In a given quarter, you might ship a capability a partner needs before launch day, take a system that works today and make it hold up at ten times the load, or design the foundation for a product line that doesn’t exist yet.

We hire for judgment and range. Engineers who reason well about complex systems pick up the domain quickly. Prior experience in payments or lending is a meaningful advantage, but we’d rather bet on how you think than on what’s already on your résumé.