Software Engineer, Payments Infrastructure
Core
Build real-time card capture, tokenization, and egress control for AI agents handling payments in live audio streams without exposing plaintext card data to models.
Role type
Senior IC backend/infrastructure engineer (payments security)
Builds
Real-time card capture systems, tokenization platforms, and payments egress control planes for AI agents
Domain
Fintech, payments infrastructure, real-time voice systems, security
Deliverable
production ML models
Required skills
Go, backend systems, high-reliability services, security design, systems programming, API/SDK design, cloud deployments
Preferred skills
Real-time/streaming systems, applied cryptography, network isolation, customer-facing architecture, technical direction
Technologies
Go, PCI DSS Level 1 certified platforms, telephony protocols, LLMs (as context), Agent SDK
Responsibilities
Build real-time card capture for voice intercepting keypad and spoken digits upstream of agent runtime; Extend tokenization platform for short-lived tokens; Own payments egress control plane with versioned destinations; Ensure payment actions are correct with at-most-once primitives; Implement deterministic detection to keep card data out of unauthorized places; Enable self-serve payments via APIs and middleware
Seniority
Senior, hands-on IC
