Senior Software Engineer (Agentic Search) - Billing

Nebius seeks a Senior Software Engineer to design and build the billing platform for a novel search engine tailored for agentic AI consumption. The role involves owning systems that turn product usage into accurate revenue, supporting usage-based pricing, subscriptions, prepaid balances, and enterprise contracts. Responsibilities include building metering pipelines, prepaid credit systems, reconciliation safeguards, and leading a billing system migration with no revenue loss. The role is based 3

6+ years building production backend systems, 3+ years building billing or metering systems. Experience with usage-based billing, subscriptions, prepaid credits, enterprise contracts. Strong Python and TypeScript/Node, Go a plus. Production experience with transactional databases like Postgres. Built high-volume event pipelines into Snowflake or BigQuery. Owned billing correctness in production with reconciliation and idempotency. PLG experience, Auth0/Okta, SOX compliance. Nice to have: billing