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 160+ across 26 states and 7 countries, headquartered in New York City.
We're hiring a Senior Software Engineer to join our Infrastructure team and build the backend services and APIs that make Lithic's data accessible across the organization. You'll spend roughly 80% of your time designing and building production backend services — REST APIs that serve data from Snowflake and other sources to internal teams and systems — and 20% supporting our data platform (pipelines, dbt, Airflow). You'll partner closely with the Analytics Engineering team to expose well-modeled data through clean, reliable APIs.
Job responsibilities:Software Engineering (~80%)
- Design, build, and maintain backend services and REST APIs that serve data from various SQL subsystems and other data sources
- Develop well-tested, production-grade Python services with clean API contracts, proper authentication, versioning, and error handling
- Work closely with the Analytics Engineering team to expose modeled data (billing, settlement, finance) through APIs that downstream consumers can rely on
- Build internal tooling and services that enable the broader organization to self-serve their data needs without writing SQL
- Participate in code reviews, system design discussions, and engineering best practices across the Infrastructure org
- Contribute to service observability: logging, metrics, alerting, and on-call practices for the services you own
Data Engineering (~20%)
- Maintain and improve existing data pipelines that move data from source systems into Snowflake (Airflow, Airbyte)
- Contribute to the dbt project alongside the Analytics Engineering team — model improvements, test coverage, and data quality
- Support data governance practices including access controls, lineage documentation, and data quality standards
Required:
- Strong Python proficiency with experience building backend services and REST APIs
- Experience with web frameworks such as FastAPI, Flask, Django, or similar
- Solid SQL skills and hands-on experience with modern cloud data warehouses (Snowflake strongly preferred)
- Experience designing and building production APIs with proper authentication, versioning, and error handling
- Familiarity with CI/CD, automated testing, and operational reliability practices
- A track record of shipping reliable, well-tested services in production environments
- Comfort navigating ambiguity and driving projects forward with minimal oversight
Preferred:
- Experience with data pipeline development using tools like Airflow, Airbyte, Dagster, or similar
- Familiarity with dbt or similar transformation frameworks
- Experience in fintech, payments, or other financial services environments
- Familiarity with AWS services (Lambda, S3, RDS, API Gateway, ECS/Fargate)
- Kafka or event streaming experience
- Infrastructure-as-code experience (Terraform, Pulumi)
- Experience at a company processing high transaction volumes where correctness and reliability are non-negotiable
The annual US salary range for this role is $160,000 – $200,000 plus equity. This salary range is 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, Netherlands, Poland, or Czech Republic. We do not offer visa sponsorship or assistance.
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- 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
What We Do
Before Lithic, we started Privacy.com in 2014 to build the safest and easiest way for consumers to pay online. We worked with a legacy issuer processor and it took us over a year to launch our card program. Even after we were up and running, scaling and ongoing maintenance were a pain—batch processing delays, scheduled downtime windows, and black-box systems we couldn't debug. From this experience, we learned firsthand that the financial services supply chain is broken—in the United States, the industry is still dominated by 30-year-old companies that run on mainframes. So we built Lithic, the issuing and processing infrastructure we always wanted, with developer-friendly, modern, well-documented APIs, insanely fast speed-to-market, and flawless reconciliation—purpose built to give card issuers extremely high levels of observability, control, and flexibility over their card programs. We own the entire technical stack: direct connections to Visa, Mastercard, and Amex, our own authorization engine delivering sub-100ms responses, an immutable ledger system, and real-time webhooks for every transaction event. Today, we power card programs for 100+ innovative companies including Mercury and Privacy.com—maintaining 99.99+% uptime without maintenance windows while processing billions in payment volume. And we're just getting started. Lithic currently has 150+ employees in 26 states and 6 countries, with an HQ in NYC, backed by Bessemer, Index, and Stripes.
Why Work With Us
Our team is at the center of everything we do. But we know that work isn't everything, we value flexibility and quality benefits. We strive to be a place where you know your ideas are always heard, you and your teammates learn from each other and make each other better, and you know your work is impacting users and the industry at large.
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