Senior Billing Systems Engineer — Metering & Revenue

Nebius; New York (NY); Hybrid; USD 170,000 - 240,000; Full time

Job summary

Tavily is seeking 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.

You will own systems turning product usage into accurate revenue, supporting flexible billing models—usage-based pricing, subscriptions, prepaid balances with auto top-up, and enterprise contracts.

Qualifications

• 6+ years building production backend systems, including 3+ years in billing or metering systems
• 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
• 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: 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

Responsibilities

• 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)

Skills

Python

TypeScript/Node

Go

PostgreSQL

Kafka

Kinesis

Snowflake

BigQuery

Auth0

Okta

Stripe Billing

Metronome

Orb

Zuora

Education

Tools

Docker

Virtual Machines

PostgreSQL

Kafka

Kinesis

Snowflake

BigQuery

Stripe Billing

Metronome

Orb

Zuora

Job description

Tavily is seeking 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.

You will own systems turning product usage into accurate revenue, supporting flexible billing models—usage-based pricing, subscriptions, prepaid balances with auto top-up, and enterprise contracts.