RedHat OpenShift Application Administrator

In Cyclad we work with top international IT companies in order to boost their potential in delivering outstanding, cutting-edge technologies that shape the world of the future. 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.

Project information:

• Location: Warsaw (hybrid work model)
• Type of employment: B2B contract or CoE
• Project languages: English

Key Responsibilities:

• 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)
  • 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)

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