Senior Software Engineer, Data Platform

Lithic

11d • Hybrid

About The Position

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.

Requirements

• 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

Nice To Haves

• 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

Responsibilities

• 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
• 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

Benefits

• 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
• Commuter benefit
• Catered lunch every Tuesday and Thursday

What This Job Offers

• Job Type: Full-time
• Career Level: Senior
• Education Level: No Education Listed
• Number of Employees: 11-50 employees