Senior Software Engineer (Backend): Cards
Core
Build a seamless card issuing and transaction platform bridging crypto and fiat to enable merchants to offer instant access to funds via physical and virtual cards.
Role type
Senior Backend Software Engineer (Payments/FinTech)
Builds
Card issuing and transaction platform, tokenization services, and settlement workflows
Domain
Financial services, stablecoins, cross-border payments
Deliverable
production ML models | product features | infrastructure
Required skills
Java, Spring Boot, microservices architecture, API design, card payments/issuing/transaction processing, Docker, Kubernetes, system architecture, PCI compliance
Preferred skills
crypto/fiat payment rails, AI-assisted development tooling
Responsibilities
Design and implement card platform features end-to-end, build and maintain integrations with card issuers and payment processors, architect scalable and secure systems, own features from inception to completion, drive cross-team technical initiatives, review code and mentor teammates