Senior Backend Engineer (Data) at Sphere

Mission: Sphere has built the world’s first AI-native tax engine that helps companies like Eleven Labs, Replit, Runway AI, Windsurf (+ many more) automate their sales tax, VAT and GST obligations: We're growing rapidly (34%+ MoM revenue growth) and helping the fastest growing tech companies around the world including Eleven Labs, Replit, Windsurf, Fathom, Linktree, Photoroom, Sierra AI, Zed etc We’ve spent the last 1.5 years building local rails into tax authorities in both the US and internationally to properly automate compliance processes (no other vendor has done this) We're building the world's first AI-native tax engine (which will be the foundation for a broader cross border compliance platform; think Deel for international billing) We're well funded by Felicis Ventures and YC A crucial part of Sphere’s platform involves integrating with customer billing systems (e.g. Stripe, Chargebee, Rillet, Campfire and many more) and ingesting large volumes of transaction data across customers around the world. As we scale, the need for a uniform data pipeline across these integrations is mission critical and will allow us to service more customers in different industries, with differen