RedHat Openshift Application Administrator
Job Summary
- 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)
Remote Work :
No
Employment Type :
Full-time
About Company
Ar?s is a fully independent group of companies specialized in managing complex IT projects and systems for large organisations, focusing on state-of-the-art software development, business intelligence and infrastructure services. We are composed of 17 entities across 9 countries that ... View more