LiVynn's production environment in AWS ca-central-1 implements a multi-layered, multi-AZ architecture spanning global edge (Cloudflare CDN, CloudFront, WAF), API gateway and load balancing, Kubernetes microservices with auto-scaling, and a resilient data layer with PostgreSQL, MongoDB, Redis, and Kafka. Data flows from consumer mobile apps and partner web panels through DNS geo-routing and AWS ALB with TLS 1.3 encryption into private Kubernetes clusters across two availability zones, each running Auth Service, Transaction Service, Billing Service, and seven additional microservices with Istio service mesh and network policies. The data layer spans PostgreSQL primary with read replicas, MongoDB clusters for real-time data, Redis for caching, Kafka for event streaming, S3 for assets and logs, ELK Stack for observability, and AWS Backup with 6-hour geo-distributed snapshots to S3 Glacier. This architecture delivers 99.99% uptime SLA, sub-5-second failover, GDPR and CCPA compliance with immutable audit logs via CloudTrail, and Kubernetes HPA-driven auto-scaling across both AZs. Fork this diagram on Diagrams.so to customize subnets, add additional regions, or adapt the microservice topology for your fintech or payment platform. The design demonstrates enterprise-grade security (KMS encryption, Secrets Manager, MFA on admin panels, Network Policies, RBAC) and observability (ELK Stack, CloudTrail, AWS Config) essential for regulated financial services.