Lithic

Senior Software Engineer, Card Authorization

Lithic
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5 hours ago
Remote, United States +4 moreSenior

Base Salary

$160k - $200k/yr

Responsibilities

  • Write reliable, secure, and scalable code for real-time card authorization and fraud-prevention systems.
  • Build customer-facing features including rules improvements, velocity controls, 3D Secure flows, fraud tooling, and transaction monitoring.
  • Own projects end-to-end from planning through launch.
  • Improve system reliability and participate in the team on-call rotation.
  • Lead improvements to team systems and processes.

Requirements

  • 4+ years of experience building production backend systems.
  • Experience with or willingness to learn Rust and ability to understand systems written in Python and Java.
  • Interest and experience using AI tools to enhance productivity.
  • Ability to navigate ambiguity, align diverse perspectives, and drive practical solutions.
  • Experience or interest in payments, fintech, or fraud prevention.
  • Ability to design systems from scratch and own product development end-to-end.
  • Strong written communication skills and experience working in a remote, async-first team across time zones.
  • Full-stack experience is preferred.

Benefits

  • Unlimited PTO.
  • 12 weeks of fully paid parental leave.
  • Four-week fully paid sabbatical after five years.
  • Ability to work from anywhere in the world for four weeks each year.
  • 3% cashback on card purchases through a complimentary Privacy.com employee account.
  • Health, vision, and dental insurance with HSA contribution match.
  • 401(k) match and voluntary life, STD, and LTD insurance.
  • Remote position; eligible locations are the United States, Ontario or British Columbia in Canada, the Netherlands, Poland, and the Czech Republic.
  • NYC-based employees work from the SoHo office three days per week, including Tuesdays and Thursdays as core days.
  • In-office employees receive commuter benefits and catered lunch on Tuesdays and Thursdays.

Tech Stack

Categories

Lithic

About Lithic

201-500 employees

Lithic builds a card issuing and processing platform with APIs for developers to launch debit, credit, and prepaid card programs and move money. It sells B2B payment infrastructure and operational services, charging fees for card issuing, processing, and program management; customers include Mercury, Flex, and Novo. Privately held and headquartered in New York, it serves fintechs and platforms needing spend controls, reconciliation, and direct network connections.

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