• Own and evolve our AWS infrastructure across ECS/Fargate and EKS (Kubernetes), including RDS/Postgres, S3, IAM, and VPC. • Own and evolve CI/CD pipelines (GitHub Actions, Argo CD) and Infrastructure-as-Code (Terraform). • Set up alerting, log aggregation, and performance dashboards (e.g., CloudWatch, Datadog, or Open Telemetry). • Implement secure-by-default practices; support SOC 2 / HIPAA readiness. • Write Python/Bash scripts for backups, monitoring, deployment hooks, etc. • Own Postgres operational concerns including tuning, access control, backups, and zero-downtime migrations. • Design and own our EKS platform, leading workload migrations, defining cluster architecture, autoscaling strategy (Karpenter), GitOps workflows (Argo CD), and reliability standards. • Make and document infrastructure decisions; define best practices for reliability, security, and cost.