Cloud platforms and Infrastructure as Code
AWS, Azure, GCP, OpenStack, Open Telekom Cloud, Stackit Cloud, OpenTofu, Terraform, Packer, Crossplane
Kubernetes, private cloud, and bare-metal platforms
Kubernetes, EKS, AKS, GKE, OpenShift, Talos Linux, KubeVirt, Cluster API, Docker, Helm, Kustomize, Cilium, Multus, Kube-OVN
Observability, monitoring, logging, and tracing
OpenTelemetry, Grafana, Grafana Alloy, VictoriaMetrics, Prometheus, Loki, Mimir, Tempo, Cortex, New Relic, Jaeger, OpenSearch
GitOps and automated delivery
Argo CD, Flux, GitLab CI, Jenkins, Azure DevOps, Tekton, kluctl, OCI registries, Zarf
Data, messaging, and storage
Kafka, Strimzi, NATS, Pub/Sub, ClickHouse, Databricks, PostgreSQL, MariaDB, MongoDB, ArangoDB, TimescaleDB, Cosmos DB, Longhorn, Rook Ceph
Security and testing
Kyverno, Vault, Keycloak, NeuVector, Aqua Security, Linkerd, OPA Gatekeeper, Chainsaw, Karate, k6, end-to-end testing, load testing
Build tools and automation
Bazel, Make, Taskfile, Just
Programming and scripting
Bash, Python, Go, TypeScript, JavaScript, Java, C#/.NET, Rust