# Senior Software Engineer, Card Authorization at Lithic

- Company: Lithic
- What the company does: Enterprise issuer processing infrastructure to scale card programs with 99.99% uptime, direct network connections, and comprehensive fraud controls. Backed by Bessemer and Index.
- Company website: https://lithic.com/
- Type: Startups
- Level: Senior
- Location: Remote
- Work setup: Remote
- Pay: $160K to $200K base salary per year (USD)
- Posted: 2026-09-11
- Apply by: 2026-10-26
- Apply: https://job-boards.greenhouse.io/lithic/jobs/6190658004
- Page: https://www.1752.vc/careers/jobs/lithic-senior-software-engineer-card-authorization/

## About the role

We are hiring a Senior Software Engineer for Lithic’s Card Authorization team, which owns the real-time systems that make every card authorization decision correct, reliable, and fast. The team also owns related fraud tooling, including Lithic’s Rules Engine and 3D Secure integration. You’ll own high-impact projects end-to-end, solve distributed-systems problems at scale, and help build the tools customers use to control fraud and payment risk.

## What they're looking for

- Write reliable, secure, scalable code for Lithic’s real-time authorization and fraud-prevention systems with minimal tech debt
- Build customer-facing features, such as rules improvements, velocity controls, 3DS flows, fraud tooling, and transaction monitoring. Own projects from planning to launch
- Improve the reliability of systems in team’s scope and participate in the team on-call rotation
- Lead efforts to improve systems and processes within the team

Tags: Engineering