Senior Backend Developer / Systems Architect – Double-Entry Ledger & Stripe Integration We are looking for a Senior Backend Developer / Systems Architect to design and harden the financial backbone of a growing B2B SaaS platform. In this role, you will architect and evolve a double‑entry credit ledger system that powers credit purchases, user wallets, campaign balances, and financial reporting across our platform. You will transform an existing credit wallet and transaction system into a fully immutable, double‑entry transaction journal , ensuring every financial movement is traceable, auditable, and aligned with professional accounting standards. Your work will become the single source of truth connecting our internal admin suite, Stripe‑powered purchases and subscriptions, Shopify fulfillment flows, and internal accounting systems. HOW WE WORK ✅ Daily commits to ensure rapid iteration and continuous improvement. ✅ Autonomous problem‑solving, with a bias toward action. ✅ H...