About the roleSlash is, at its core, a technology company and is on a mission to build the best engineering team in the world. We're looking for a Senior/Staff Software Engineer to help build and evolve our core banking product that powers $10b in transaction volume a year. This role blends infrastructure-level thinking with deep product intuition. You'll build fault-tolerant, user-facing financial primitives that spans across all customers, and you'll do it fast, cleanly, and with ownership.
What you'll do- Own and ship entire product surfaces end-to-end, from database schema and API design to building the product customers interact with daily
- Build and scale our core financial infrastructure: payments, transfers, invoicing, bill pay, onboarding, and card management systems that move tens of billions of dollars a year
- Design data models, write migrations, and build the backend services that power complex multi-step financial operations
- Work directly with product, design, and compliance to ship features that are correct, compliant, and actually good to use - in financial software, the details are the product
- Shape engineering standards, contribute to architecture decisions, and talk to customers to figure out what to build next
We're Looking for Someone Who- Has shipped and owned full product surfaces - not just isolated features, but entire systems from data model to deploy
- Is a strong full-stack engineer: comfortable designing API endpoints, writing a database migration, and building the frontend for a project end to end
- Has strong product instincts - thinks holistically about UX, API ergonomics, and system correctness, and pushes back when something doesn't feel right
- Thrives working independently in a small team that ships fast - you're the kind of person who builds product without requiring a full spec
- Cares about craft: writes clean, well-tested code, thinks about edge cases, and takes pride in building software that is delightful to use
- Bonus: Has an intuition for financial systems (payments, ledgers, compliance) or a genuine desire to go deep on them
What's in it for You:- Opportunity for high growth
- High autonomy + ownership culture
- Comprehensive health + benefits plan
- Working out of our downtown San Francisco office space
- Unlimited PTO
