ABOUT SPHERE

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 today, billions ahead.

THE ROLE

You'll be the first CS hire at Sphere, which means you're not stepping into a function; you're building one. The role spans the full customer lifecycle, from resolving technical issues to expanding contracts, but the bigger mandate is creating the systems, processes, and playbooks that a future team will run on. You'll get deep on cross-border compliance, protect engineering bandwidth, and operate with a high degree of autonomy. You'll succeed in this role if you thrive on ownership and blank slates, are customer-obsessed, and get things done.

WHAT YOU'LL DO

• Full-stack CS: Triaging customer issues, helping maintain our industry-leading Time To Resolution metrics,...