Senior Software Engineer (Billing)

Nebius B.V.; New York (NY); Hybrid; USD 150,000 - 190,000; Full time

Job summary

Nebius B.V. is seeking a Senior Software Engineer to design and operate a billing platform behind a novel search engine.

Based in New York with a hybrid setup, you will own metering, usage aggregation, prepaid wallets, and enterprise pricing, ensuring reliable revenue with scalable systems. The role requires 6+ years backend experience, 3+ years in billing or metering, strong Python and TypeScript/Node skills, and familiarity with Postgres and data pipelines (Kafka/Kinesis to

Qualifications

• 6+ years building production backend systems and 3+ years in billing or metering.
• Experience with usage-based and subscription billing, prepaid credits, and enterprise billing.
• Proficiency in Python and TypeScript/Node with Postgres and data pipelines.

Responsibilities

• Design and operate the end-to-end billing platform with metering and usage aggregation.
• Support prepaid balances, auto top-up, and enterprise pricing models.
• Lead migration to the next-gen billing system without downtime or revenue loss.
• Define observability, quality metrics, and ensure SOX compliance.

Skills

Python

TypeScript/Node

PostgreSQL

Data pipelines

Tools

Kafka

Kinesis

Snowflake

BigQuery

Auth0/Okta

Job description

Role overview:

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. In this position, your responsibility will be to design and operate the billing platform end to end, build metering and usage-aggregation pipelines, design and operate prepaid credit/wallet systems with auto top-up and balance management, support enterprise/contract billing with custom pricing, and 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).

What we’re looking for:

6+ years building production backend systems, 3+ years building and operating billing or metering systems; experience with usage-based metered billing, subscription billing, prepaid credits, enterprise billing; expertise in Python and TypeScript/Node; Postgres; data pipelines with Kafka or Kinesis to Snowflake/BigQuery; PLG billing; Auth0/Okta; SOX compliance.

Nice to have:

migration experience, hybrid billing, Stripe/Metronome/Orb integration; developer-facing API billing.

Why Tavily?

etc.