TUBOLETA is a distributed AWS architecture supporting 150,000 concurrent users across a multi-tier ticketing platform with edge protection, containerized application services, and polyglot data persistence. Traffic flows through AWS WAF, Shield, API Gateway, and CloudFront before reaching Application Load Balancers routing to ECS Fargate clusters across multiple availability zones. Aurora PostgreSQL handles transactional data with multi-AZ failover under 30 seconds, while DynamoDB and ElastiCache Redis serve high-velocity reads for event catalogs and seat availability. Asynchronous workflows via SNS and SQS trigger Lambda functions for PDF/QR generation and email delivery through SES, with comprehensive observability via CloudWatch, X-Ray, and CloudTrail. This architecture demonstrates enterprise-grade resilience, security, and cost optimization for mission-critical commerce at scale. Fork and customize this diagram on Diagrams.so to adapt the pattern for your own high-concurrency platform.