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.
Skills Required
- Bachelor's degree
- 7 years of relevant professional experience in IT
- 3 years in a similar position working with OpenShift applications
- RedHat Certified OpenShift Administrator or equivalent certification
- Experience in configuring and troubleshooting Routes/Services/Ingress
- Experience in managing projects/namespaces for applications
- Knowledge of application monitoring and logging with Prometheus and Grafana
- Proficient in scripting and automation with Ansible and Python
- Experience in deploying and maintaining containerized applications in OpenShift
- Knowledge of application security settings
- Experience in CI/CD for OpenShift applications
- Proficiency in English at B2 level with certification
What We Do
Uni Systems, a member of Quest Group, has been a reliable ICT partner to companies and organizations in the European market for over 60 years. We are the first IT company founded in Greece, in 1964, and we have been supporting our clients ever since. Trusting customers, extensive solutions offering, strong partnerships and experienced people, those are the main grounds for Uni Systems’ rapid expansion of operations across geographies and industries. With more than 1450 specialized ICT professionals, established presence in more than 20 countries, and branches and subsidiaries in the heart of the European Union (Athens, Barcelona, Brussels, Bucharest, Luxembourg and Milan), we are effectively addressing the needs of European and International organizations and institutions and delivering value-added integrated solutions to our customers. Through our strong industrial vertical expertise, supported by the range of our horizontal solutions, we hold a substantial and successful track record in the delivery and implementation of large-scale, mission-critical projects in the sectors of Banking & Finance, Enterprise & Utilities, Government, and Telecommunications, as well as in EU Institutions and Agencies. Participations in real commercial implementations of best practices (i.e. ITIL, RUP, PRINCE2, PMI), has provided our people with significant experience, unique know-how and proven capability in designing, implementing and successfully supporting complex ICT projects, through a range of solutions and business areas. At Uni Systems, we support innovation, and we have been investing in the European and National research ecosystem. Our Research and Innovation (RDI) department has been successfully bidding and winning a series of research programs in promising technological areas, such as 5G, AI in Health, and Blockchain in Governance. Enabling our clients' digital transformation journey is our passion and we remain strongly committed to it.
