Kubernetes SRE Lead — Remote-First (Europe)

Kubermatic GmbH; Poland; Remote; PLN 286,000 - 485,000; Full time

Benefits offered by this job

Remote-first

Competitive salary

B2B contracts with paid time off

Training & certifications

Conference attendance

ContainerDays community events

Hackathons

Job summary

Kubermatic GmbH is seeking an experienced Site Reliability Engineer focused on Kubernetes to ensure reliability, availability, and performance of cloud-native infrastructure. You will collaborate with engineering and delivery teams to design, build, and operate infrastructure across AWS, GCP, Azure, and on-prem environments.

You will automate tasks, implement best practices for monitoring and incident response, and contribute to open-source initiatives while staying current with Kubernetes and

Qualifications

• 6+ years of professional experience in SRE/DevOps or similar infrastructure roles.
• Deep understanding of Kubernetes internals (API server, etcd, kubelet, CSI, CNI, CRI).
• Strong experience with two+ major cloud providers (AWS, GCP, Azure).
• Production experience with infrastructure as code using Terraform and Helm.
• Solid Linux sysadmin skills (networking, storage, systemd, debugging).
• Ability to read Go and work with controller-runtime traces and small tools.
• Experience maintaining CI/CD infrastructure (Prow, GitHub Actions).
• Experience with secrets management (Vault) and PKI/TLS operations.
• Experience building observability stacks (Prometheus, Grafana, Loki).

Responsibilities

• Design, build, and maintain reliable Kubernetes-based infrastructure.
• Operate production KKP seed and master clusters across cloud providers; plan upgrades and migrations.
• Provision QA, staging, and demo environments aligned with release candidates.
• Manage credential lifecycles and certs across multi-tenant environments.
• Develop automation tools to streamline provisioning and operations workflows.
• Monitor health and performance; improve reliability, scalability and efficiency.
• Maintain observability with MLA stack and issue detection before customers notice.
• Support KubeVirt operations, including VM provisioning and networking between seeds and workloads.
• Write Infrastructure as Code with Terraform and Helm; manage state and drift detection.
• Collaborate with teams to reduce recurring problems and prevent incidents.

Skills

Kubernetes internals

Multi-cloud

Linux administration

CI/CD tooling

Secrets management

Observability stack

Go reading ability

Tools

Terraform

Helm

Vault

External Secrets Operator

Prow

GitHub Actions

Prometheus

Grafana

Loki

cert-manager

Job description

Kubermatic GmbH is seeking an experienced Site Reliability Engineer focused on Kubernetes to ensure reliability, availability, and performance of cloud-native infrastructure. You will collaborate with engineering and delivery teams to design, build, and operate infrastructure across AWS, GCP, Azure, and on-prem environments.

You will automate tasks, implement best practices for monitoring and incident response, and contribute to open-source initiatives while staying current with Kubernetes and