RedHat Openshift Application Administrator

Job Description

• Configuration, Deployment and Maintenance of containerized applications on OpenShift (manifests, Helm, Templates, Operators...)
• Managing namespaces / projects for applications (RBAC, quotas, limit ranges, resource management etc.)
• Configuration of application exposure and routing (Routes, Services, TLS, external access, load balancing)
• Implementation and maintenance of application security (SCC, PodSecurity, Network Policies, secrets’ rotation)
• Application scaling and optimisation (resource tuning, performance troubleshooting)
• Support for development teams (pod troubleshooting, logs, events, restarts, rollbacks)
• Collaboration on requests for new functionalities / resources for applications
• Monitoring application health and performance (alerts, dashboards, capacity planning)
• Preparing and updating documentation for applications, SOPs, application runbooks

Qualifications

Mandatory requirements:

• Bachelor plus a minimum of 7years of relevant professional experience
• Presents excellent command of English, at least at B2 level
• Minimum 3 years of experience in a similar position
• Required Certificates (At least one of the following):
  • Red Hat Certified OpenShift Administrator (or equivalent certification)
  • Or additional 3 years of experience with OpenShift administration beyond the minimum required for similar positions
  • any equivalent certification must be internationally recognized (subject to acceptance by the Contracting Authority)
• Minimum 3 years of daily hands-on working with OpenShift applications (deployment, troubleshooting, scaling, application configuration)
• Experience in managing projects/namespaces for applications (creation, quotas, limit ranges, RBAC)
• Practical knowledge in configuring and troubleshooting Routes / Services / Ingress for applications (TLS, path-based routing etc.)
• Experience in implementing Network Policies and Security Constraints on application / namespace level
• Experience in application monitoring and logging (built-in OpenShift tools + Prometheus, Grafana, application specific metrics)
• Expertise in GitOps / ArgoCD, Helm charts - application of changes from Git to specific namespaces / apps
• Strong scripting and automation skills with proficiency in Ansible, Python, Helm charts
• Experience in deploying, configuring, and maintaining containerized applications in RedHat OpenShift
• Expertise in working with YAML / Helm charts, OpenShift templates for application deployment
• Knowledge of OpenShift application model: Projects / Namespaces, Service Accounts, Secrets, ConfigMaps etc.
• Knowledge of application security settings (Pod Security Admission / Standards, Security Context Constraints, Network Policies per app, image signing / scanning)
• Experience in scaling and optimisation of applications (Horizontal Pod Autoscaler, Vertical Pod Autoscaler, resource requests/limits, probes)
• Knowledge of application exposure (Routes, Services, Ingress, ExternalName, TLS termination, API Gateway patterns)
• Experience in CI/CD for OpenShift applications (pipelines, Jenkins, ArgoCD / GitOps)