ZAZZ is seeking a highly skilled Solutions Architect specializing in backend development to design and implement scalable, high-availability backend systems using event-driven architectures and real-time processing for business-critical applications like e-commerce and payment systems. The role requires expertise in optimizing backend services for scalability and security, ensuring compliance with protocols like PCI-DSS and GDPR. Responsibilities include developing cost-effective scaling strategies using cloud services, mapping backend scalability to business growth, conducting technical audits, and managing the total cost of ownership (TCO) for backend ecosystems. The ideal candidate will possess advanced understanding of distributed systems and at least 8+ years of experience in backend development, with a focus on high-availability system design and financial-grade security.