Senior Software Engineer (Agentic Search) - Billing

A Senior Software Engineer will design and operate Tavily's billing platform powering an agentic AI search engine, owning the end-to-end billing lifecycle from usage events to invoices. This role is based in New York with hybrid work arrangements.

Role details

• Location: New York, NY (hybrid)
• Salary: USD 147,200 - 224,300 per year
• Experience: Minimum 3 years

Responsibilities

• Architect and run the end-to-end billing stack, from usage events through invoicing
• Develop metering and usage aggregation pipelines to convert high-volume events into billable amounts
• Design and operate prepaid credit and wallet systems with auto top-up and balance management
• Support enterprise and contract billing with custom pricing, negotiated terms, and scheduled invoicing
• Implement reconciliation, idempotency controls, and invoice accuracy safeguards to ensure revenue data remains correct
• Lead the migration to the next generation of the billing platform with zero revenue loss and no downtime
• Define observability and quality metrics for billing correctness, freshness, and throughput
• Ensure billing systems meet audit and compliance requirements, including SOX and financial audits

Requirements

• 6+ years building production backend systems, including 3+ years actively building and operating billing or metering systems
• Hands-on experience with usage-based metered billing: rating, aggregation, and proration logic
• Experience with subscription and recurring billing alongside usage-based models
• Hands-on experience with prepaid credits and wallet systems with auto top-up mechanics
• Experience with enterprise and contract billing: custom pricing and negotiated terms
• End-to-end integration of a third-party billing platform (Stripe Billing, Metronome, Orb, or Zuora)
• Strong proficiency in Python and TypeScript/Node; Go is a plus
• Production experience with transactional databases for financial-grade data (PostgreSQL or equivalent)
• Built high-volume event and usage pipelines into a data warehouse (Kafka or Kinesis; Snowflake or BigQuery)
• Own billing correctness in production, including reconciliation, idempotency, and invoice accuracy
• Product-Led Growth experience: billing for high-volume, self-serve users
• Hands-on experience with identity systems in production (Auth0, Okta, or similar)
• Shipped revenue systems under SOX or financial audit constraints

Technologies

• Python
• TypeScript/Node
• Go
• PostgreSQL
• Kafka
• Kinesis
• Snowflake
• BigQuery
• Stripe Billing
• Metronome
• Orb
• Zuora
• Auth0
• Okta

Benefits

• Health insurance
• 401(k) plan with up to 4% company match and immediate vesting
• Parental leave: 20 weeks for primary caregivers, 12 weeks for secondary caregivers
• Remote work reimbursement up to $85 per month for mobile and internet
• Disability and life insurance

Why Tavily

• Full ownership — you oversee the entire infrastructure within a small team
• Real scaling challenges, including bursty workloads, cache invalidation, multi-region setups, and millions of daily requests
• AI-native company where infrastructure directly powers AI agents used by leading organizations

Nice to have

• Led a billing system migration or re-platform with zero revenue loss or downtime
• Built a hybrid billing solution combining usage, subscriptions, and prepaid in one system
• Experience across payments (Stripe) and metering/rating layers (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

Key employee benefits in the US

• Health insurance: 100 percent company-paid medical, dental, and vision for employees and families
• 401(k) plan with up to 4 percent company match and immediate vesting
• Parental leave: 20 weeks for primary caregivers, 12 weeks for secondary caregivers
• Remote work reimbursement up to $85 per month for mobile and internet
• Disability and life insurance: company-paid coverage