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