Tools we use: AWS Cloud: EKS, RDS, S3, EC2, ALB, ASG, VPC, IAM, CloudFront, Lambda. Digital Ocean: Droplet, App Platform. IaC: Terraform; Ansible. Monitoring: VictoriaMetrics + Grafana, Zabbix, Prometheus. Logging: Promtail, Loki, Grafana, EFK.