Senior Software Engineer
Indexed description
Since 2013, we’ve supported more than 750,000 small businesses nationwide. Backed by leading investors like Lightspeed Venture Partners, Menlo Ventures, 83North, and Citi Ventures, our 500+ person global team shares one mission: to give small businesses the financial tools they need to succeed.
We’re innovators driven by big ideas, collaboration, and real impact. Here, you’ll have the freedom to take ownership, grow your career, and make a difference for small business owners across America. Ready to shape what’s next?
About The Role
As a Senior Software Engineer, you’ll own and evolve the systems that connect our platform to a complex ecosystem of external vendors. This is a high-impact role operating at the intersection of distributed systems and fintech compliance.
You’ll design and build scalable, robust architectures that integrate with established, enterprise-grade third-party platforms, handling complex data flows and strict regulatory requirements. Beyond that, you’ll leverage AI and LLMs to automate workflows, improve system reliability, and accelerate development.
What You’ll Do
- Design, build, and maintain end-to-end integrations with 3rd-party vendors, including complex KYC & KYB identity verification flows
- Own data ingestion pipelines and data mapping layers, transforming external data into unified internal models
- Integrate and maintain services such as SMS, Email, and additional REST-based platforms
- Architect scalable, fault-tolerant, and secure systems for synchronous and asynchronous data processing
- Monitor, troubleshoot, and optimize production systems—handling failures, edge cases, and rate limiting
- Apply AI/LLMs to automate workflows, enhance testing, and improve engineering efficiency
- 5+ years of backend development experience, including 3+ years working with Python in production environments
- Strong hands-on experience with Django Rest Framework and asynchronous processing using Celery
- Proven experience designing and consuming RESTful APIs and integrating with external services
- Solid experience with relational databases and data modeling (Postgres, MySQL or similar)
- Experience working with cloud environments and backend infrastructure (AWS, Docker, Airflow, OpenSearch)
- Strong system design skills with a focus on scalability and reliability
- Experience with TDD, CI/CD pipelines, and modern development practices
- Experience or strong interest in applying AI/LLMs to engineering workflows
- Experience with GitHub Copilot or other AI-assisted development tools
- Familiarity with agentic software development approaches
- Strong prompt engineering skills
- Experience building or optimizing data pipelines
- Background in fintech or regulated environments (KYC, KYB, compliance)
- Excellent group health coverage
- Stock options
- Flexible hybrid work model
- Large Study Fund contribution
- Salary Benchmarks and Checkpoints
- Monthly meal card of TenBis or CiBus (your choice) with generous balance
- Free parking for cars, scooters, and bikes
- Free gym membership
- Company-sponsored Mental Health Benefits
- PTO, Company Holidays, and Flexible Holidays
- Community-based volunteering opportunities
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