Senior Software Engineer, Card Authorization

Lithic
United States, Ontario, British Columbia, Netherlands, Poland, Czech Republic
Workplace: RemoteFull timeUSD 160,000 - 200,000 annuallyFunction: Software EngineeringExperience: 4+ yearsSkills: ["Communication","Problem-solving","Collaboration","Driving toward practical solutions"]

Build and maintain Lithic’s real-time card authorization and fraud-prevention systems, owning high-impact projects from planning through launch. You’ll write reliable, secure, scalable backend code, improve system reliability and team processes, and participate in on-call. Work on customer-facing fraud tooling such as rules improvements, velocity controls, 3D Secure flows, and transaction monitoring, solving distributed-systems challenges at scale.

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Lithic
Lithic
20 hours ago

Senior Software Engineer, Card Authorization

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Source: Company careers pageValidated by: Fursa AI
Last checked: 3 hours agoStatus: Live

Job Summary

Build and maintain Lithic’s real-time card authorization and fraud-prevention systems, owning high-impact projects from planning through launch. You’ll write reliable, secure, scalable backend code, improve system reliability and team processes, and participate in on-call. Work on customer-facing fraud tooling such as rules improvements, velocity controls, 3D Secure flows, and transaction monitoring, solving distributed-systems challenges at scale.
Location: United States, Ontario, British Columbia, Netherlands, Poland, Czech Republic
Workplace: Remote
Employment Type: Full time
Job Function: Software Engineering
Seniority: Mid level

Key Responsibilities

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

Pay and Benefits

Salary: USD 160,000 - 200,000 annually
Equity and Bonus:Equity
Perks:Paid LeaveParental LeaveSabbaticalRemote WorkHealth InsuranceVisionDentalHsa Match401kLife Insurance

Key Requirements

  • •4+ years building production backend systems; full-stack experience is a plus.
  • •Experience in or desire to learn Rust, and ability to understand systems written in other languages such as Python or Java.
  • •Interest and experience leveraging AI tools to enhance productivity.
  • •Experience or interest in payments, fintech, and fraud prevention.
  • •Strong written communication skills and experience working in a remote, async-first team across time zones.
Experience:4+ yearsPaymentsFintechFraud prevention
Skills:CommunicationProblem-solvingCollaborationDriving toward practical solutions
Tech Stack:RustPythonJavaAI tools3D Secure

Eligibility

Work Authorization:Authorization required. Sponsorship not provided.

Company Brief

Lithic
Provides card issuing, payments, and risk infrastructure via APIs for platforms and businesses. Lithic enables programmatic virtual and physical card issuance, transaction processing, and fraud controls to embed payments into software products.
Industry: Fintech Infrastructure
Company Size: Medium (51 to 250 employees)
Growth: Scaleup
Valuation: Unicorn (USD 1B+)
Funding: Series C
Headquarters: San Francisco, United States
Founded: 2014
WebsiteLinkedIn