Clouds: AWS (primary, all major services), Azure (Microsoft shops), Google Cloud (data + AI workloads), Cloudflare (edge + Workers)
Compute: EC2, ECS Fargate, EKS, Lambda, App Runner, Batch; Azure App Service, AKS, Functions; GCP Cloud Run, GKE, Cloud Functions
Containers & K8s: Docker, Kubernetes, Helm, ArgoCD, Flux, Istio, Linkerd, Cilium, OPA Gatekeeper, Kyverno, Crossplane
IaC: Terraform + terragrunt, AWS CDK, Pulumi, CloudFormation, Ansible (config mgmt), Crossplane (control planes)
CI/CD: GitHub Actions, GitLab CI, CircleCI, Jenkins, AWS CodePipeline, Argo Workflows, Tekton
Observability: Datadog, New Relic, Grafana Cloud, Prometheus, Loki, Tempo, OpenTelemetry, AWS CloudWatch, Honeycomb
Logging & SIEM: ELK / OpenSearch, Splunk, Datadog Logs, AWS CloudTrail, Wazuh, Elastic Security
Secrets & security: AWS Secrets Manager, HashiCorp Vault, Doppler, AWS KMS, Sealed Secrets, External Secrets Operator
Databases (managed): RDS PostgreSQL/MySQL, Aurora, DynamoDB, ElastiCache Redis, Snowflake, BigQuery, Databricks
Networking & edge: CloudFront, Route 53, AWS WAF, Shield, VPC, Transit Gateway, Cloudflare, Fastly
FinOps tooling: AWS Cost Explorer, Compute Optimizer, Vantage, CloudHealth, CloudZero, Spot.io, ProsperOps