ApplySarthiSenior Software Engineer, Card Authorization
Lithic
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This role on the market
17 open authorization roles across 13 companies are on ApplySarthi right now, most of them in Chennai (1).
- Prior Authorization Associate IAbbott
- Lead Software Engineer- Technical Support Engineer- Authentication & Authorization PlatformsJPMorgan
- Senior Software Engineer, AuthorizationJobgether
- Supervisor - Benefits Eligibility and AuthorizationCardinalhealth
- Product Manager - Authorization ManagementAthenahealth · chennai
What authorization roles keep asking for: Go (35%), Observability (29%), Rust (29%), Python (24%), System design (24%), gRPC (24%), IAM (18%), TypeScript (18%) — counted across their open postings here.
Remote Software Engineer jobs · Java jobs · Python jobs · Rust jobs · Spark jobs
Lithic has 11 open roles listed here.
- Senior Software Engineer, Processing
- Senior Risk Associate
- Treasury Operations Associate
- Senior Software Engineer, Product Platform
- Business Operations Associate, Program Management
Counted across 14 company job boards, updated as roles open and close.
Preparing for this interview
Interviews for authorization roles keep coming back to Go, Observability, Rust, Python. Practise those questions before you sit with Lithic.
Questions you are likely to be asked
- Why do you want to join Lithic?
- What is your experience with Java? Tell me one thing you learned the hard way.
- How do you decide what to test, and what does good code review look like to you?
- Describe a time a deadline forced a trade-off in quality. What did you choose and why?
- How would you design an API for a feature you have worked on?
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Practise the Senior Software Engineer, Card Authorization at Lithic interview free →Lithic is the modern card issuing and processing platform empowering ambitious financial companies to build the future of payments.
Our infrastructure powers card programs for 100+ innovative clients, from fintechs reimagining credit and digital banking to platforms transforming disbursements and spend management. Companies like Mercury, Flex, and Novo rely on Lithic's developer-friendly APIs, direct network connections, and flawless reconciliation to launch and scale card programs in weeks, not years.
We're building a future where access to better financial products materially improves people's lives, free from the constraints of 30-year-old mainframes and legacy processors. We're proud to be backed by world-class investors who share that vision, including Bessemer Venture Partners, Index Ventures, Spark Capital, Stripes, and Mastercard, along with many others.
We're a team of 170+ across 26 states and 7 countries, headquartered in New York City.
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.
Job 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 in team’s scope and participate in the team on-call rotation
- Lead efforts to improve systems and processes within the team
Qualifications:
- 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.
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Benefits for Full-Time US Employees:
- Unlimited PTO
- 12-weeks fully paid parental leave
- 4-Week Fully Paid Sabbatical (earned at your 5-year anniversary)
- Work From Anywhere: work from anywhere in the world 4-weeks each year
- 3% cashback on card purchases with your complimentary Privacy.com employee account
- Health, vision, and dental insurance; HSA Contribution Match
- 401(k) match
- Voluntary Life Insurance and STD/LTD
NYC-based employees work from our SoHo office three days a week. Tuesdays and Thursdays are our core days, and you'll choose a third day that works for your schedule and team needs.
In-office employees receive:
- Commuter benefit
- Catered lunch every Tuesday and Thursday
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Listed on greenhouse · posted 2026-09-11. ApplySarthi collects openings and links to application pages; the role is advertised by Lithic, not by us.