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Senior Software Engineer, Card Authorization

Join Lithic as a Senior Software Engineer to enhance real-time card authorization systems in a fully remote environment.

Location
Remote
Compensation
$160k–$200k/yr
Level
senior
Type
full time · Remote

Posted by employer 1 month ago

First seen on Joblaze 1 month ago

Last verified on the company career page 5 days ago

Apply at Lithic → Save job Scanned from lithic.com

Skills & Technologies

Java Rust Python Flexible on stack

What you'll build

  • Write reliable, secure, scalable code for authorization systems
  • Build customer-facing features
  • Improve the reliability of systems
  • Lead efforts to improve systems and processes

Must have

  • 4+ years building production backend systems
  • Experience in or desire to learn Rust
  • Ability to navigate ambiguity
  • Strong written communication skills

Nice to have

  • Full stack experience
  • Interest in payments, fintech, fraud prevention

Practical constraints

  • Candidates must be located in the United States, Canada (Ontario or British Columbia), Netherlands, Poland, or Czech Republic

AI in the day-to-day

Interest and experience in leveraging AI tools to enhance productivity.

Requirements

Experience
4+ years
Visa
No sponsorship (stated in posting)

Benefits

401k Match Unlimited PTO Remote Work Health Insurance Parental Leave

Joblaze summary

The Senior Software Engineer on Lithic's Card Authorization team focuses on developing and maintaining real-time systems that ensure accurate and efficient card authorization decisions. Key skills include experience with backend systems, proficiency in Rust and other programming languages like Python and Java, and a strong interest in fraud prevention and fintech. This role is ideal for someone with over four years of relevant experience who is comfortable leading projects from conception to launch in a remote, asynchronous environment.

Joblaze insights

  • Listed about a month ago — first seen on Joblaze September 13, 2026. Last confirmed on Lithic's careers page October 27, 2026.
  • Salary band is below the typical range for Backend roles (median ~$180,000).
  • Starts above 23% of 162 comparable senior backend roles in United States that list Python we track (median $173,958 across 64 companies). See Python salary trends
  • Python appears in 41.2% of 520 comparable senior backend roles in United States; Rust appears in 10.4% of 520 comparable senior backend roles in United States.

Quick facts

Is the Senior Software Engineer, Card Authorization role remote?
Yes — Lithic lists this as a fully remote position.
What's the salary range?
Lithic lists $160,000–$200,000 for this role.
How much experience is required?
At least 4 years of relevant experience for this Senior Software Engineer, Card Authorization role.
What's the tech stack?
Joblaze extracted these technologies from the posting: Java, Python, Rust.
What seniority level is this role?
Lithic targets senior candidates for this position.
Is this full-time or contract?
Full-time for this Senior Software Engineer, Card Authorization role at Lithic.

From the original posting

Lithic is the modern card issuing and processing platform empowering ambitious financial companies to build the future of payments.

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 you'll do:

  • 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

What you'll bring:

  • 4+ years building production backend systems. Full stack experience is a plus.
  • Experience in or desire to learn Rust; ability to understand Lithic’s system 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, 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 that’s spread across time zones

The annual US salary range for this role is $160,000 to $200,000 plus equity. This salary range may be inclusive of several career levels at Lithic and will be narrowed during the interview process based on the candidate’s experience and qualifications.

This is a remote position. However, candidates must be located in the United States, Canada (Ontario or British Columbia), Netherlands, Poland, or Czech Republic. We do not offer visa sponsorship or assistance.

Crack the code

A hidden code is tucked into this application. Find it and enter it below to continue.

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Benefits for Full-Time US Employees:

Standard company text repeated across Lithic's postings is omitted here.

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