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Redhat Openshift Application Administrator

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Cyclad Sp. z o.o.

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Location:
Poland , Warszawa

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Category:
IT - Administration

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Contract Type:
Not provided

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Salary:

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Job Description:

Currently, we are looking for an experienced RedHat OpenShift Application Administrator to support containerized application environments and enable development teams in a complex enterprise infrastructure. The role focuses on OpenShift application administration, application security, CI/CD processes, and operational support for development teams.

Job Responsibility:

  • Configuration, deployment, and maintenance of containerized applications on OpenShift using manifests, Helm Charts, Templates, and Operators
  • Managing namespaces and projects for applications, including RBAC, quotas, limit ranges, and resource allocation
  • Configuration of application exposure and routing, including Routes, Services, TLS, external access, and load balancing
  • Implementation and maintenance of application security mechanisms such as SCC, Pod Security, Network Policies, and secret rotation
  • Application scaling and optimization activities, including resource tuning and performance troubleshooting
  • Providing operational support to development teams, including troubleshooting pods, logs, events, restarts, and rollbacks
  • Supporting CI/CD and GitOps processes using Jenkins, ArgoCD, and Helm
  • Collaboration with stakeholders on requests for new functionalities and application resources
  • Monitoring application health and performance using OpenShift native tools, Prometheus, Grafana, alerts, dashboards, and capacity planning
  • Preparing and maintaining technical documentation, SOPs, and application runbooks

Requirements:

  • Minimum 7 years of professional experience after education, including at least 3 years in a similar role
  • Minimum 3 years of daily hands-on experience with OpenShift applications, including deployment, troubleshooting, scaling, and application configuration
  • English proficiency at B2 level
  • At least one of the following: Red Hat Certified OpenShift Administrator certification (or equivalent internationally recognized certification) OR Additional 3 years of OpenShift Administration experience above the minimum required experience level
  • Excellent practical knowledge of Red Hat OpenShift application administration
  • Experience in deploying, configuring, and maintaining containerized applications in OpenShift environments
  • Expertise in YAML, Helm Charts, and OpenShift Templates for application deployment
  • Strong knowledge of OpenShift application model, including Projects/Namespaces, Service Accounts, Secrets, and ConfigMaps
  • Knowledge of application security settings, including Pod Security Admission / Standards, SCC, Network Policies, and image signing/scanning
  • Experience implementing and troubleshooting Routes, Services, Ingress configurations, TLS termination, and path-based routing
  • Experience with application scaling and optimization using HPA, VPA, resource requests/limits, and health probes
  • Experience with CI/CD pipelines, Jenkins, ArgoCD, and GitOps methodologies
  • Practical experience managing namespaces/projects, including RBAC, quotas, and limit ranges
  • Experience implementing Network Policies and Security Constraints at application and namespace level
  • Experience with application monitoring and logging using OpenShift native tools, Prometheus, Grafana, and application-specific metrics
  • Strong scripting and automation skills using Ansible, Python, and Helm Charts
  • Strong troubleshooting and analytical skills in distributed containerized environments
  • Experience working in restricted or secure environments
  • Strong documentation discipline (runbooks, SOPs, technical documentation)
What we offer:
  • Private medical care with dental care (covering 70% of costs). Family package option possible
  • Multisport card (also for an accompanying person)
  • Life insurance
  • Work with talented engineers on large-scale, technically challenging projects

Additional Information:

Job Posted:
May 15, 2026

Employment Type:
Fulltime
Work Type:
Hybrid work
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