Finance Systems Engineer, Tax
Anthropic · San Francisco, CA | Seattle, WA
About this role
**Finance Systems Engineer, Tax — Anthropic** **About the role** Anthropic’s Tax Technology function (within Finance Systems) owns the systems that make every revenue and purchasing motion bookable, taxable, and auditable from day one. You’ll build tax integrations, tooling, and production code connecting tax systems to Anthropic billing, ERP, and data warehouse systems. You’ll work across tax domains including indirect tax, corporate income tax and provision, withholding tax, R&D credits, and transfer pricing. This is a foundational hire on a small team, partnering closely with the Tax Technology Lead and collaborating with cross-functional teams across Tax, Data Science, Billing Engineering, Product, and more. Over time, you’ll take on ambitious projects such as using Claude to automate tax work end to end and building internal products that are high impact and seamless for the Tax team. **Key responsibilities** - Own tax-related changes in the billing codebase and the billing-to-tax-engine integration (including withholding tax considerations) - Lead AP tax engine implementation across ERP-connected purchasing flows: data migration, integration pipelines, parallel-run reconciliation, e-invoicing, and go-live validation - Build and iterate tax-specific products and internal tooling across the full tax stack (indirect tax reconciliations, provision & research credit pipelines, transfer pricing datasets, withholding tracking, and exemption/validation tooling) - Own production connection points between the tax stack and data infrastructure (feeding the central ingestion layer) - Build SOX-aware IPE and control-total tooling on tax data flows (ingestion control totals, source-to-target tie-outs, and audit evidence pipelines) - Design and build tooling that applies Claude to tax work and enables self-serve access for non-technical tax colleagues to data, calculations, and evidence - Serve as the technical owner for vendor implementation handoffs (in the room during build; accountable after go-live) - Partner with Billing Engineering, Data Platform, Tax, Treasury, and Product to keep the tax stack optimized and compliant as new products and jurisdictions come online **Minimum qualifications** - Hands-on experience building or owning production integrations against billing platforms, ERPs, or enterprise tax/finance systems - Tax-systems fluency in at least one domain (indirect tax engines, corporate tax provision/compliance tooling, withholding, research credit, or transfer pricing) - Proficiency writing production-grade Python with testing and code-review discipline - SQL proficiency sufficient to build reconciliations and validate data end to end - Experience building or operating SOX-aware data flows (e.g., IPE, control totals, documented/testable pipelines) - Ability to work independently in a fast-paced, changing environment - Ability to work directly with vendors, auditors, engineers, and the tax team without an intermediary **Preferred qualifications** - 7+ years in tax technology, finance systems engineering, or a closely related field - Experience owning changes inside a shared production codebase alongside a product engineering team - Warehouse/analytics engineering skills (e.g., dbt, BigQuery, or comparable) - Breadth across multiple tax domains (indirect, corporate income tax/provision, withholding, research credit, transfer pricing) - Experience building internal tools/interfaces for non-technical finance or tax users - Ex
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