Compute Orchestration: ECS (EC2 launch type), Auto-Scaling Groups, Capacity Providers, Task Definitions,and ECR. ● Databases Caching: RDS PostgreSQL (Multi-AZ with scheduled Lambda-based scaling), ElastiCache (Redis multi-node replication clusters). ● Messaging: Amazon MQ (RabbitMQ multi-AZ clusters). ● Networking Content Delivery: VPC (multi-AZ, NAT Gateways, Interface Endpoints), VPC Peering (cross-region IL ↔ EU), ALB (sticky sessions, health checks), Route53 (hosted zones, ALIAS records), and CloudFront. ● Security Governance: WAF, Lambda, ACM, Cognito, Secrets Manager, SSM Parameter Store, IAM, and SNS.Observability: CloudWatch (Dashboards, Alarms, Log Insights), and ECS Container Insights.AWS CDK (TypeScript): Proficiency in writing, refactoring and deploying infrastructure via CDK. ● CloudFormation Fundamentals: Deep understanding of stack lifecycles, drift detection, updates and rollbacks.CI/CD: GitHub Actions (building, tagging, ECR push and task definition updates for zero-downtime rollouts). ● Containers: Advanced Docker optimization, container networking and troubleshooting host-level resource allocation. ● Linux Networking DNS: Host-level DNS