Note: The job is a remote job and is open to candidates in USA. OpenRouter is hiring its first engineer for the Money Platform behind its AI inference gateway, marketplace, and agentic products. The role owns financial infrastructure for pricing, metering, billing, payments, ledgering, reconciliation, and financial controls.

Responsibilities

• Flexible pricing and contract terms. Any commitment size, BYOK pricing, overages, platform fees and per-seat pricing. Sales and CS should be able to test new deals without an engineer
• Automate quote-to-cash. Take a signed contract straight to a provisioned, correctly billed customer with no manual uploads. Handle POC and production contracts as separate flows. Build credit transfers at onboarding and self-serve credit grants for CS into our own tools
• Define the source of truth. Financial core that owns fees, plans and entitlements. Establish robust data architecture for internal and customer reporting
• Own usage → revenue. Every completed request is metered, priced and recorded exactly once, across our streaming spend-tracking pipeline and usage records. Reconcile what we served against what we charged
• Own billing, payments & collections. That means invoicing, prepaid credits, auto top-ups, refunds, tax/VAT, POs and spend-against-commitment tracking. It also covers the Stripe integration, failed-payment recovery and overdue-invoice collections
• Build the ledger, AP & reconciliation. Build a double-entry ledger as the financial system of record. Automate reconciliation across Postgres, Stripe, billing and usage data. Own provider settlements and payables, and hand Finance close-ready numbers
• Work cross-functionally. Partner closely with the Provider team on usage tracking, per-generation cost attribution and provider pricing/discounts, and with the Trust & Safety team on payments fraud and abuse prevention
• Treat correctness and controls as features. The system ensures idempotency of financial transactions, anomaly detection, auditability and least-privilege access for finance tools. Any dollar that can't be explained is a bug

Skills

• 5+ years building production financial systems: billing, payments, ledgers or revenue infrastructure, at a fintech or a usage-based SaaS company
• Deep fluency in money-correctness patterns: idempotency, double-entry accounting, exactly-once event processing, reconciliation and safe migrations of financial data
• Hands-on experience with Stripe (or similar processors) and a billing/invoicing platform, including contract, subscription and usage-based models
• Strong TypeScript and SQL
• Comfortable with Postgres and analytical stores (ClickHouse or similar) at high event volume
• Working knowledge of accounting: AR/AP, revenue recognition, deferred revenue, month-end close
• You work well across teams
• High agency and AI-forward
• You use coding agents daily and like automating away manual finance ops
• You've built usage-based, hybrid or seat-based billing at scale
• Experience with streaming data pipelines (e.g. Dataflow, Spanner, Kafka) for metering
• Experience with payments fraud and risk systems (e.g. Stripe Radar)
• Experience with multi-currency, sales tax/VAT or global payment methods
• You've helped get financial systems ready for an audit
• You're an existing OpenRouter user, or have built projects in AI tooling

Benefits

• Equity
• Remote work (US)

Company Overview

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