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Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Software Engineer - **Company:** Nebius Inc. - **Location:** New York, NY, United States (Remote available) - **Experience:** Expert - **Salary:** $147,200.0 - $224,300.0 - **Contract:** Permanent contract - **Skills:** Application Programming Interfaces (APIs), Artificial Intelligence, BigQuery, Databases, Data Warehousing, Python (Programming Language), PostgreSQL, Node.Js, E2e Testing, TypeScript, Okta, Snowflake, Backend, Build Management, Stripe, Apache Kafka, Search Engines, Zuora - **Published:** September 4, 2026 - **Apply:** https://startup.jobs/senior-software-engineer-agentic-search-billing-nebius-8698346 ## About the Role * 6+ years building production backend systems, of which 3+ years actively building and operating billing or metering systems in production * Hands-on experience with usage-based / metered billing: rating, aggregation, and proration logic * Hands-on experience with subscription / recurring billing alongside usage-based models * Hands-on experience with prepaid credits / wallet systems and auto top-up mechanics * Hands-on experience with enterprise / contract billing: custom pricing and negotiated terms * End-to-end integration of a third-party billing platform (Stripe Billing, Metronome, Orb, or Zuora) * Strong expertise in Python and TypeScript/Node (Go a plus) * Production experience with transactional databases (Postgres or equivalent) for financial-grade data * Built high-volume event / usage pipelines into a data warehouse (Kafka or Kinesis * Snowflake or BigQuery) * Owned billing correctness in production: reconciliation, idempotency, invoice accuracy * Product-Led Growth (PLG) experience: worked on billing for high-volume, self-serve users * Hands-on with Auth0, Okta, or similar identity systems in production * Shipped revenue systems under SOX or financial audit constraints, Applicants must be authorized to work in the country in which they apply and will be required to provide proof of employment eligibility as a condition of hire. ## Description We are looking for a Senior Software Engineer to design and build the billing platform behind a novel search engine tailored for agentic AI consumption. This role is based in our New York office, hybrid with the NYC team. Our APIs are used by millions of developers and the AI agents acting on their behalf, all paying based on what they consume. You will own the systems that turn product usage into accurate, trustworthy revenue, supporting flexible billing models-usage-based pricing, subscriptions, prepaid balances with auto top-up, and enterprise contracts. Correctness is non-negotiable: every event must be measured precisely and every invoice must be right to the cent. In this position, your responsibility will be to: * Design and operate the billing platform end to end, from usage events to invoices * Build metering and usage-aggregation pipelines that turn high-volume events into billable amounts * Design and operate prepaid credit/wallet systems with auto top-up and balance management * Support enterprise/contract billing with custom pricing, negotiated terms, and scheduled invoicing * Build reconciliation, idempotency, and invoice-accuracy safeguards to ensure revenue data is always correct * Lead the migration to the next generation of our billing system with no revenue loss or downtime * Define observability and quality metrics for billing correctness, freshness, and throughput * Ensure billing systems meet audit and compliance requirements (SOX, financial audit), * Led a billing system migration or re-platform with zero revenue loss or downtime * Built hybrid billing combining usage, subscriptions, and prepaid in one system * Worked across both a payments layer (Stripe) and a metering / rating layer (Metronome / Orb) * Billed a developer-facing / API product with pay-as-you-go and API-key metering * Used Snowflake for usage aggregation and revenue analytics Why Tavily? * Full ownership - small team, you own the entire infrastructure, not a slice of it * Real scaling challenges - bursty scraping workloads, cache invalidation, multi-region, millions of daily requests ## Related Videos - [Navigating Growth, Scaling Challenges, and Office Expansions with David Singleton, CTO at Stripe](https://www.wearedevelopers.com/videos/100362-navigating-growth-scaling-challenges-and-office-expansions-with-david-singleton-cto-at-stripe) - [Migrating half a million users to a new payment service provider](https://www.wearedevelopers.com/videos/730-migrating-half-a-million-users-to-a-new-payment-service-provider) - [Throwing off the burdens of scale in engineering](https://www.wearedevelopers.com/videos/608-throwing-off-the-burdens-of-scale-in-engineering) - [Build Your Own Subscription-based Course Platform](https://www.wearedevelopers.com/videos/321-build-your-own-subscription-based-course-platform) - [Teini - an extremely small webshop leveraging awesome and free tech](https://www.wearedevelopers.com/videos/286-teini-an-extremely-small-webshop-leveraging-awesome-and-free-tech) - [Inside Bitpanda's Tech Stack: Scaling a European Fintech Leader - Markus Dorner](https://www.wearedevelopers.com/videos/1979-inside-bitpanda-s-tech-stack-scaling-a-european-fintech-leader-markus-dorner) ## Related Articles - [Highest Paying Tech Companies for Developers](https://www.wearedevelopers.com/magazine/220-highest-paying-tech-companies-for-developers) - [How We Built a Worry-Free System That Runs for 10+ Years – And What We’d Do Again](https://www.wearedevelopers.com/magazine/751-how-we-built-a-worry-free-system-that-runs-for-10-years-and-what-we-d-do-again) - [Highest Paying Tech Companies in Europe](https://www.wearedevelopers.com/magazine/162-highest-paying-tech-companies-in-europe) - [Data Engineer Salary UK](https://www.wearedevelopers.com/magazine/253-data-engineer-salary-uk) - [Backend Developer Salary in Germany [2023]](https://www.wearedevelopers.com/magazine/196-backend-developer-salary-in-germany-2023) - [Software Developer Salary in The Netherlands [2023]](https://www.wearedevelopers.com/magazine/217-software-developer-salary-in-the-netherlands-2023)