Senior Software Engineer, Processing
Core
Build and maintain real-time interfaces between Lithic and external payment networks, managing online and batch transaction flows for authorization, clearing, settlement, and disputes.
Role type
Senior Software Engineer (Payments Infrastructure)
Builds
Real-time transaction processing systems for Mastercard, Visa, and Amex
Domain
Fintech / Payments / Financial Infrastructure
Deliverable
production ML models | product features | infrastructure
Required skills
Java, Python, Kotlin, AWS, distributed systems design, network peering, high-reliability system architecture
Preferred skills
Fintech domain knowledge, payments space experience
Technologies
Java, Python, Kotlin, AWS
Responsibilities
Ensure high reliability and low latency for transaction interfaces; Develop new capabilities for authorization, clearing/settlement, and network integration; Evolve infrastructure for physical network peering; Own initiatives from planning to launch; Participate in on-call rotation
Seniority
Senior, hands-on IC
