Senior Infrastructure Engineer - Observability

SentinelOneCybersecurity

Remote in CZ/SKFull-TimeSenior

Salary not disclosed

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Job Details

Experience: 5 or more years of experience in Infrastructure Engineering, Site Reliability Engineering (SRE), or a related systems-focused field.
Required Skills: AWSGCPKubernetesGoGrafanaPrometheusTerraformAnsible

Have 5 or more years of experience in Infrastructure Engineering, Site Reliability Engineering (SRE), or a related systems-focused field.
Have hands-on production experience running observability stacks with Prometheus, Grafana, Thanos (or Mimir/Cortex), and OpenTelemetry.
Have production experience with Kubernetes (EKS, GKE), Helm, Kustomize, and at least one major cloud provider (AWS or GCP).
Be proficient with infrastructure-as-code tools, specifically Terraform and Ansible.
Have experience keeping large-scale SaaS or distributed systems reliable, including on-call and incident response.
Have hands-on experience with CI/CD pipelines and rolling, blue-green, or canary deployment strategies.
Be proficient in Go or another mainstream language such as Python.
Familiarity with on-premises, hybrid, or air-gapped Kubernetes deployments is preferred.
Experience with GitHub Actions or progressive delivery tools such as Argo CD, Argo Rollouts, or Flagger is preferred.
Experience reducing telemetry costs through methods such as cardinality management or retention tuning is preferred.

Design and build scalable, resilient components of the telemetry platform using Grafana, Prometheus, Thanos/Mimir/Cortex, and OpenTelemetry.
Own small-to-medium features from requirements refinement and technical design through production rollout.
Work with engineering teams to understand their needs, refine requirements, and identify underspecified work.
Work across large-scale Kubernetes environments (EKS, GKE) on AWS and GCP.
Keep owned services reliable and cost-efficient by right-sizing cloud resources and tuning telemetry volume.
Automate repetitive operational work to reduce toil and pager load.
Manage infrastructure as code with Terraform and Ansible, following security, compliance, and change-management procedures.
Take part in on-call, troubleshoot production issues, improve runbooks and dashboards, lead postmortems, and follow corrective actions through.
Review peers’ code and designs and provide constructive feedback.
Mentor teammates and share knowledge through documentation, demos, and internal talks.

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