Senior Site Reliability Engineer
New
K
KubermaticCloud-native infrastructure
Location: Europe (Time zone: CET ± 4h) or on-site/hybrid in Hamburg, Germany., CET ± 4hFull-TimeSenior
Salary not disclosed
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Job Details
- Experience
- 6+ years of Professional experience as a Site Reliability Engineer, DevOps Engineer, Platform Engineer, Systems Engineer, or in a similar infrastructure-focused role.
- Required Skills
- AWSGCPKubernetesAzureGoLinuxTerraformGitHub ActionsHelm
Requirements
- Have 6+ years of professional experience as an SRE, DevOps Engineer, Platform Engineer, Systems Engineer, or in a similar infrastructure-focused role.
- Understand Kubernetes internals, including the API server, etcd, kubelet, CSI, CNI, CRI, admission webhooks, and certificate management.
- Have strong experience with at least two major cloud providers (AWS, GCP, or Azure) and their managed services.
- Have production experience with Infrastructure as Code using Terraform and Helm.
- Have Linux systems administration experience covering networking, storage, systemd, and debugging with tools such as strace, tcpdump, and iptables.
- Be comfortable reading and writing Go, including tracing controller-runtime reconcilers and code paths and writing small tools.
- Have experience maintaining and improving CI/CD infrastructure; the team's pipelines run on Prow and GitHub Actions.
- Have experience with secrets management, such as Vault or External Secrets Operator, and PKI/TLS operations.
- Have experience building and maintaining observability stacks for monitoring, logging, and alerting, including tools such as Prometheus, Grafana, and Loki.
- Nice to have: experience with bare-metal Kubernetes, PXE boot, IPAM, and hardware lifecycle management.
- Nice to have: familiarity with KubeVirt, distributed storage such as Ceph, or network overlays such as Cilium, Calico, or Kube-OVN.
- Nice to have: contributions to CNCF or open-source Kubernetes projects.
Responsibilities
- Design, build, and maintain reliable Kubernetes-based infrastructure with engineering and customer delivery teams.
- Operate production KKP seed and master clusters across AWS, GCP, Azure, vSphere, and Hetzner, including upgrades, migrations, and rollback procedures.
- Provision and manage QA, staging, and demo environments for product teams.
- Manage credentials, certificates, cloud provider secrets, Vault policies, and cert-manager with Let's Encrypt.
- Develop automation tools and scripts for infrastructure provisioning, configuration, and operational workflows.
- Monitor system health and performance, and improve reliability, scalability, and efficiency.
- Implement observability, alerting, incident response, and service reliability practices.
- Support KubeVirt operations, including virtual machine provisioning, operator lifecycle, certificate rotation, and network connectivity.
- Write and maintain Infrastructure as Code using Terraform and Helm; manage Terraform state and resolve configuration drift.
- Build and maintain observability using Prometheus, Grafana, and the KKP Monitoring, Logging, and Alerting stack.
- Investigate customer-reported issues through the KKP codebase and provide technically grounded responses.
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