Software Engineer, Billing

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 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.