Senior Software Engineer (Payments and Finance)

About Rec At Rec (rec.us), we're reimagining how the world plays, trains, competes, explores, and gets outside. Our mission is to empower the entire recreation community to thrive, and our vision is bold: power recreation worldwide. Booking a tennis court? Signing your kid up for swim lessons? Trying to find an open rec league? It shouldn't feel like filing your taxes. We're partnering with parks and rec departments, golf courses, campgrounds, gyms, and more to transform a $105B industry stuck in the Stone Age. Who We Are We're a small team with outsized ambition. We've built products and led teams at places like Google, Amazon, Uber Eats, MasterClass, The Athletic, Nextdoor, and more. Our Values: Be Relentless. Move fast. Own it. Win Together. Speak up and go beyond the boundaries of your role. Take Pride. Treat this like it's yours, because it is. About The Role 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. What You’ll Do 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. What We’re Looking For 5+ years of experience building software in collaborative environments. You're fired up by the mission. AI fluency is non‑negotiable. You ship with quality. 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 thrive in ambiguity. You work like a partner, not just a coder. You communicate clearly, candidly, and constructively. Our Stack Frontend: Next.js (hosted on Vercel), React, TypeScript Backend: Node.js, Koa, Objection.js, PostgreSQL Infra & Ops: AWS, Temporal, Twilio AI & Tooling: Claude Code, Cursor, or equivalent — mandatory. Pay & Benefits Compensation: $140,000–$200,000 base + meaningful equity Benefits: Flexible PTO, top‑tier health/dental/vision, 401(k). Work location: San Francisco — in‑office most days at our downtown SF office. Ready to build something real? Something fun? Something big? We're ready for you. #J-18808-Ljbffr Rec Technologies