Senior Software Engineer (Payments and Finance)

Rec Technologies•San Francisco, CA

1d•$140,000 - $200,000•Onsite

About The Position

This is not a seat-filling role. We're a Series A company in scaling mode, processing more transactions every day, and the systems that handle our partners' money need someone who owns them. That's this role. Every dollar that flows through Rec, a parent paying for summer camp, a department collecting membership dues, a parks department invoicing a facility rental, runs through the systems you'll build. You'll own our Stripe integration, the financial data model underneath it, and the accounting and reporting tools our partners use to run their business. You'll make sure the money moves correctly, the books reconcile, and the reports our partners rely on are accurate down to the cent. You'll still ship across the broader platform when the work calls for it, but the primary job is owning payments and finance. Our partners trust us with their revenue. That trust is everything.

Requirements

5+ years of experience building software in collaborative environments.
You're fired up by the mission. We work hard because recreation matters to families, coaches, and kids across the country. We also ski, hike, and get outside. We're building for recreation, after all.
AI fluency is non-negotiable. You already use AI tools daily and have real judgment about when to trust them, when to verify, and when to override. If AI tools aren't yet core to how you work, this role will be a rough fit.
You ship with quality. Fast, clean, and proud, but never careless. Every customer transaction matters to us: a missed swim lesson registration, a double-booked court, a failed payment. Reliability is the baseline.
Product judgment is part of the job. You don't just follow orders. You think critically about what to build, what to defer, and what to push back on. You ask "should we?" before "how do we?"
You thrive in ambiguity. Early-stage problems are rarely well-defined. You bring order without over-engineering, and you know the difference between clarifying a spec and getting stuck on one.
You work like a partner, not just a coder. You think end-to-end alongside Product, Design, and Partner Success.
You communicate clearly, candidly, and constructively. Strong opinions, loosely held, with a bias toward what works.

Responsibilities

Own our Stripe integration and the systems that handle every financial transaction on the platform, from one-time bookings to recurring memberships to payouts and payment plans.
Build and evolve the accounting and reporting tools our partners use to run their businesses, including financial reports, reconciliation, and exports to downstream accounting systems.
Model the financial data layer carefully. Money is unforgiving of bad schemas.
Partner with Product, Design, and Partner Success to understand what our partners actually need from their financial tooling, and build for the real workflows.
Make sure payment failures, refunds, chargebacks, disputes, and edge cases are handled cleanly, reliably, and observably.
Help us stay compliant as we grow (PCI, SOC 2, tax reporting, and whatever else the business requires).
Use AI tools fluently across your workflow, from drafting Stripe webhook handlers to debugging reconciliation issues to analyzing transaction data.
Contribute to the broader platform when the work touches payments or finance.