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/Crypto-Fiat)
Builds
Card issuing platform, tokenization services, transaction enrichment, and settlement workflows.
Domain
Fintech, Cross-border payments, Digital assets (Stablecoins)
Deliverable
production ML models | product features
Required skills
Java, Spring Boot, Microservices architecture, API design, Card payments/issuing/transaction processing, Docker, Kubernetes, System design, Code review
Preferred skills
Crypto/fiat payment rails, AI-assisted development tooling
Technologies
Java, Spring Boot, Docker, Kubernetes
Responsibilities
Design and implement card platform features end-to-end, Build and maintain integrations with card issuers and payment processors, Architect systems spanning multiple services, Drive cross-team technical initiatives, Actively review code and provide feedback, Mentor teammates and set quality standards
Seniority
Senior, hands-on IC
