Software Engineer, Money Platform

Every token that flows through OpenRouter is a financial event. Billions of requests run across hundreds of models and dozens of providers, and each request carries its own cost, price, discount and contract terms. Behind the inference engine sits a money engine: metering, pricing, invoicing, credits, payments, payouts and the ledger that ties it all together.

We’re hiring our first engineer to envision, build and own the dollar+token value capture engine behind OpenRouter’s leading inference gateway, marketplace and rapidly growing suite of agentic products. You will be responsible for the robust and flexible platform that lets the business sell any pricing model it can dream up. If you come from fintech and have a passion for financial engineering, this is your chance to reimagine an AI-first, agentic Money Platform from the ground up.

What You’ll Do

• 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., Lead biopharma business development across the US West Coast and Central States, acquiring pharmaceutical and biotechnology customers and expanding strategic accounts. Build and manage Salesforce pipeline, develop proposals, negotiate agreements, and close projects involving genomic assays, biomarker discovery, clinical trial assays, precision medicine, and companion diagnostics. Collaborate with scientific, commercial, and operational teams to shape customer solutions. Travel domestically and internationally approximately 30% of the time.

• 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 can talk with Finance in their language.
• You work well across teams. You’ll partner daily with Provider, Trust & Safety, Sales, CS and Finance, and turn messy business asks into clean systems.
• High agency and AI-forward. You use coding agents daily and like automating away manual finance ops.

Nice to Haves

• 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.

Build and own OpenRouter’s financial infrastructure, including flexible pricing, quote-to-cash automation, usage metering, billing, payments, collections, double-entry ledgering, provider settlements, and reconciliation. Ensure financial correctness through idempotency, auditability, anomaly detection, and access controls. Partner with Provider, Trust & Safety, Sales, Customer Success, and Finance teams to deliver scalable usage-based financial systems. The summary above was generated by AI About OpenRouter, 51 Minutes Ago Remote or Hybrid 174K-198K Annually Senior level 174K-198K Annually Senior level Artificial Intelligence * Cloud * HR Tech * Information Technology * Productivity * Software * Automation Develops new business within major Health Life Sciences accounts, manages executive customer relationships, leads cross-functional virtual teams, aligns ServiceNow solutions to strategic outcomes, expands worldwide account resources, builds client relationships, and achieves license, renewal, and professional services revenue targets. Top Skills: Artificial IntelligenceCustomer Service ManagementIt Operations ManagementIt Service ManagementSecurity OperationsServicenow SOPHiA GENETICS, 140K-195K Annually Entry level 140K-195K Annually Entry level Cloud * Computer Vision * Information Technology * Sales * Security * Cybersecurity Lead incident response consulting engagements, including client scoping, forensic and malware investigations, threat hunting, remediation planning, and executive communications. Coach junior analysts conducting host and network forensics across Windows, macOS, and Linux. Develop recommendations to improve clients’ security posture, produce reports for stakeholders and legal counsel, contribute thought leadership, and travel up to 30% as needed. Top Skills: Artificial IntelligenceAWSBro/ZeekGoogle Cloud PlatformLinuxmacOSMalware AnalysisAzureNetwork ProtocolsSuricataWindows

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OpenRouter is the leading AI routing and infrastructure layer that enterprises use to access, manage, and optimize the best large language models across providers-without lock-in, capacity constraints, or unnecessary cost. We power the most advanced AI teams in the world by giving them the flexibility to move fast, scale confidently, and stay future-proof as models evolve.

As enterprise adoption of AI accelerates, OpenRouter sits at the center of how organizations operationalize LLMs across research, product, and production workloads.