Job Description

At Uni Systems, we are working towards turning digital visions into reality. We are continuously growing and we are looking for a RedHat Openshift Administrator to join our UniQue team in Warsaw.

What will you be doing in this role?

• 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 maintennace 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

Requirements

What will you be bringing to the team?

• Have at least a Bachelor's degree &minimum 7 years of relevant professional experience in IT, out of which 3 years in a similar position working with OpenShift applications (deployment, troubleshooting, scaling, application configuration).
• Hold a RedHat Certified OpenShift Administrator or an equivalent certification.
• 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.
• Knowledge of application monitoring and logging (built-in OpenShift tools + Prometheus, Grafana, app-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).
• Proficiency in English language at a minimum B2 level proven by a certification

At Uni Systems, we are providing equal employment opportunities and banning any form of discrimination on grounds of gender, religion, race, color, nationality, disability, social class, political beliefs, age, marital status, sexual orientation or any other characteristics. Take a look at our for more information.