Senior Software Engineer - Checkout (d/f/m)

Own and evolve vivenu’s Checkout Platform — the critical system that powers transactions for organizers and customers worldwide. Design, implement, and optimize end-to-end checkout experiences across the full stack (React, Node.js , PostgreSQL, TypeScript) that are fast, reliable, and delightful across devices and use cases. Build seamless, high-converting checkout experiences. Implement and manage APIs, authentication, and validation logic, ensuring data consistency and security. Continuously improve checkout performance, UX, and accessibility. Develop and maintain backend services handling seat reservations and order management.  Work closely with the DevOps/Infrastructure team to ensure observability and fault-tolerance in checkout systems. Participate in design reviews and take ownership from concept to release.