Manage VAT, GST, and sales tax worldwide with Sphere’s global tax compliance software. Automate registration, calculation, and filing seamlessly. Backed by Y Combinator, a16z and Felicis.
About the role
We are seeking a Sales Tax Lead to serve as a key member of our Tax team and the primary subject matter expert on U.S. sales and use tax matters. Reporting directly to the Head of Tax, this role will help shape how tax is reflected across our products, operations, and customer experience by translating complex tax requirements into scalable business solutions.
What they're looking for
- Strong communication skills - we work at an extremely fast pace and so clear, concise communication is essential
- Deep knowledge of U.S. sales and use tax, including compliance, nexus analysis, audits, and exemption management
- Knowledge of at least one data-focused technology tool, such as Python, SQL, Alteryx, or similar
- Knowledge of accounting principles and processes
- Experience researching indirect tax issues including taxability of products and services
- Multi tasking capabilities - a lot will be thrown at you and you’ll need to manage your time wisely
More about this role
Every breakthrough in trade infrastructure has followed the same pattern: reduce a transaction cost, expand the market. Containerization for goods. SWIFT for money. Stripe for payments. Compliance is one of the last and largest — and the hardest, because trade rules aren't data to be looked up. They're a complex adaptive system with 190+ sovereign jurisdictions, in different languages, changing constantly, reacting to each other.
Sphere built the system that solves it. Our AI (TRAM) ingests global trade law, interprets it, resolves conflicts across jurisdictions, and produces compliance determinations more reliable than human experts. We handle the entire lifecycle — calculation, registration, filing, remittance — at millisecond latency with zero downtime.
Backed by a16z and YC. $21M Series A, 30%+ month-over-month growth, customers include ElevenLabs, Replit, Deel, Runway, and Lovable.
Small team, global surface area. Everyone owns a domain that would be a full team at a larger company. San Francisco, five days in office.
The problem keeps compounding. Expanding into input tax, withholding, e-invoicing, tariffs — each multiplies the complexity. Tens of millions of transactions...
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