Role overview

Software Engineer, Billing

Requirements and responsibilities

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What you’ll do

  • Implement usage and billing systems changes end-to-end, from updates in the UI and raw usage events at the edge to invoiced amounts in Stripe, including the metering pipeline, aggregation logic, entitlement enforcement, and ledger.
  • Evolve our ledger system that serves as the source of truth for customer balances, credits, overages, and adjustments — with the correctness guarantees that financial systems require.
  • Integrate deeply with Stripe including subscriptions, usage records, invoices, webhooks, and edge cases like mid-cycle plan changes, prorations, and failed payment recovery.
  • Build billing APIs and internal tooling that product, finance, and customer success teams depend on to query customer state, issue credits, and investigate billing anomalies.
  • Improve observability across the billing pipeline — metering lag, reconciliation discrepancies, invoice accuracy — so the team can quickly detect and debug billing regressions.
  • Partner with product, infrastructure, and finance teams to ship new pricing models with confidence and minimal operational risk.
  • You will own usage & limits across the product family, payments (stripe + daily jobs), grants & promotions, ledger, and internal data insights. You will be a technical authority on billing correctness and scale.
  • You will not own tax compliance, or general finance infrastructure unless it intersects directly with the billing system.
  • You will not be a backend generalist who contributes to billing occasionally. This is the core of your scope.
  • Revenue accuracy is part of the job, but the goal is to build systems with enough correctness and observability that billing is boring — not to manually reconcile every edge case.

You may be a fit if

  • You’ve shipped a usage-based billing system in production and have opinions on metering architecture, idempotency, and exactly-once semantics.
  • You’ve integrated deeply with Stripe, understand its data model, and have dealt with erroring webhooks.
  • You’ve built or maintained a financial ledger and understand why it’s required.
  • You care about correctness and making sure customer’s don’t have to manually review their invoices.
  • You can hold the tension between "move fast" and "do not lose revenue or trust."
  • You feel comfortable shipping features end-to-end - scaling up infrastructure to tweaking a UI component.
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