Senior Software Engineer, Card Authorization — Real-Time & Remote

Kenyan Edu; Poland (ME); Remote; USD 160,000 - 200,000; Full time

Benefits offered by this job

Unlimited PTO

12 weeks parental leave

4-week sabbatical

Work From Anywhere

3% cashback with Privacy.com account

Health, vision, dental insurance

401(k) match

Life Insurance, STD/LTD

Job summary

Lithic is hiring a Senior Software Engineer for the Card Authorization team in a remote-first setting. You will write reliable, secure, scalable backend code powering real-time card authorization and fraud-prevention systems, with minimal tech debt.

You will build features like rules improvements, velocity controls, 3DS flows, fraud tooling, and monitoring; own projects from planning to launch; contribute to reliability and on-call rotation in a distributed team.

Qualifications

• 4+ years building production backend systems.
• Experience or desire to learn Rust; ability to understand Lithic’s system written in other languages (Python, Java)
• Interest and experience in leveraging AI tools to enhance productivity
• Comfort with remote async-first team across time zones
• Experience or interest in payments, fintech, fraud prevention.

Responsibilities

• 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 and participate in on-call rotation.
• Lead efforts to improve systems and processes within the team.

Skills

Backend development

Rust interest

Python/Java knowledge

Remote teamwork

AI productivity tools

Payments/fintech

Tools

Rust

Python

Java

Job description

Lithic is hiring a Senior Software Engineer for the Card Authorization team in a remote-first setting. You will write reliable, secure, scalable backend code powering real-time card authorization and fraud-prevention systems, with minimal tech debt.

You will build features like rules improvements, velocity controls, 3DS flows, fraud tooling, and monitoring; own projects from planning to launch; contribute to reliability and on-call rotation in a distributed team.