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Salary: USD 160,000 - 200,000 / annual
Lithic is a modern card issuing and processing platform that powers card programs for 100+ innovative clients, including Mercury, Flex, and Novo. The company provides developer-friendly APIs, direct network connections, and reconciliation services that enable financial companies to launch and scale card programs in weeks rather than years.
You will join Lithic's Card Authorization team, which owns the real-time systems responsible for making every card authorization decision correct, reliable, and fast. The team also manages fraud tooling, including Lithic's Rules Engine and 3D Secure integration.
In this role, you will:
- Write reliable, secure, and 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, owning projects from planning to launch
- Improve the reliability of systems within the team's scope and participate in the team's on-call rotation
- Lead efforts to improve systems and processes within the team
You will 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.
Lithic is a team of 170+ employees across 26 states and 7 countries, headquartered in New York City. The company is backed by world-class investors including Bessemer Venture Partners, Index Ventures, Spark Capital, Stripes, and Mastercard.
REQUIREMENTS:
- 4+ years building production backend systems (full stack experience is a plus)
- Experience in or desire to learn Rust; ability to understand systems written in other programming languages (Python, Java)
- Interest and experience in leveraging AI tools to enhance productivity
- Ability to navigate ambiguity, align diverse perspectives, and drive toward practical solutions
- Experience or interest in payments, fintech, or fraud prevention
- Comfort with designing systems from scratch and owning the product development process end-to-end
- Strong written communication skills and experience working in a remote, async-first team spread across time zones
About Lithic
Fintech — card issuing and payments infrastructure for developers and businesses.
