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Wispr FlowWispr FlowSan Francisco, CA

Platform Engineer, Billing Systems

Own end-to-end billing systems for consumer, B2B, and enterprise motions at a fast-growing voice AI company. Reconcile across Stripe, RevenueCat, and Sequence while enabling rapid SKU and pricing experiments with perfect reliability.

220k – 350k/yr
On-site7+ YOEBackend Engineering

About the role

What You'll Do

  • Own billing end to end, across consumer, B2B, and everything we bundle next.
  • Allow us to ship new SKUs and pricing experiments in days.
  • Keep billing state reconciled across RevenueCat, Stripe, Sequence and whatever comes after.
  • Build the enterprise side out: seats, usage, cost centers, and the flexibility to mix them.
  • Expand international coverage so paying us is invisible wherever someone is.
  • Build the testing that lets us move this fast without breaking a charge.

Requirements

  • Your teammates call you the “most responsible and thorough engineer” they’ve met.
  • You've built billing more than once, ideally for different motions.
  • You've run a payments migration and nobody noticed it happened.
  • You've argued with a finance team about a number and turned out to be right.
  • You know why you shouldn’t hard-delete rows.
  • You get excited by problems with lots of constraints and edge cases.

Nice-to-Haves

  • Experience with the tech stack: Python, FastAPI, Stripe, Sequence, RevenueCat, IAP, PostgreSQL, WorkOS, occasional React/TypeScript.

Skills

PythonFastAPIStriperevenuecatsequencePostgresworkosReactTypeScriptiap
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