Staff Software Engineer, Financial Platform - Issuing
Core
Build and operate the card issuing platform for Block brands (Cash App, Square), handling issuance, authorization, clearing, settlement, and digital wallet provisioning.
Role type
Staff Software Engineer (Financial Platform Issuing)
Builds
Card issuing platform, certification tooling, and conformance frameworks for global card networks.
Domain
Financial services / Payments / Card Networks
Deliverable
production ML models | product features | infrastructure
Required skills
Global card network expertise (Visa, Mastercard, Amex), ISO 8583, direct network connectivity, financial systems architecture, protocol debugging, technical leadership, AI-assisted engineering.
Preferred skills
Experience with card lifecycle (issuance, fulfillment, disputes), influencing network requirements, on-call rotation for critical systems.
Technologies
ISO 8583, card network protocols, financial transaction systems.
Responsibilities
Interpret network specifications and mandates, build certification tooling, debug protocol-level issues, lead complex engineering problems at network boundaries, mentor engineers, manage network certification cycles, respond to incidents.
Seniority
Staff, hands-on IC with strategic influence