Senior Software Engineer - Cards

This position is listed on behalf of a partner company, who manages all applications and next steps. Our partner is looking for a Senior Software Engineer - Cards based in the United States. As a Senior Software Engineer, you will help build and scale the card infrastructure that enables businesses to manage their spending reliably and seamlessly. You will contribute across the full stack, from customer-facing card experiences to the backend systems responsible for authorization, settlement, and money movement. Working in a collaborative, product-focused engineering team, you will lead projects from initial design through implementation and launch. You will help maintain highly reliable financial systems where accuracy, observability, and operational excellence are essential. This role offers the opportunity to deepen your expertise in payment systems while shaping innovative debit and credit card products. You will also mentor fellow engineers and work closely with cross-functional partners to deliver meaningful improvements for customers.