Containerization: Docker, Podman, Dockerfiles, Multistage Builds, Docker Compose.
Orchestration: Cluster management (Kubeadm/EKS/GKE/AKS), CNI(Flannel/Cilium), CRI(Containerd/docker), Helm, Ingress (Nginx, Traefik), Service Mesh (Istio), Autoscaling (HPA, VPA), RBAC, PV/PVC, Velero.
CI/CD & GitOps: Jenkins (Declarative Pipelines, Shared Libraries), ArgoCD (GitOps)
Version Control & Artifact Management: Git, GitHub, GitLab, Bitbucket, Sonatype Nexus.
Cloud Platforms: AWS, GCP, Microsoft Azure, OpenStack
Infrastructure as Code (IaC): Terraform, Ansible
Security & Quality: Trivy, OWASP, Hadolint, SonarQube
Monitoring & Observability: Prometheus, Grafana, Thanos, LGTM Stack (Loki, Tempo, Mimir), Elastic Stack