RedHat OpenShift Application Administrator

Why are you looking for a job? If your answer ticks all the boxes, this could be the start of a great collaboration. You have a curious mind - You won't understand what we're talking about if you don't 🤔 You want to learn more around technology - You won't survive if you don't 😱 You want to make the world a bit better 😇 We happen to be just like that as well. We like hacking things here and there (you included) and create scalable solutions that bring value to the world. SquareDev? 🐿️ We use state-of-the-art technology to build solutions for our customers and our partners' customers. We make sure we stay best-in-class by participating in research projects across Europe , collaborating with top universities and enterprises on AI, Data, and Cloud . About QnR Group SquareDev is a member of the QnR Group , a leading technology organization specializing in end-to-end custom software solutions, Artificial Intelligence, Cybersecurity, SAP S/4HANA, SAP Business One, ServiceNow, and FinTech solutions. As part of QnR Group's ongoing expansion — both in Greece and internationally — we are continuously hiring across a wide range of tech roles. Successful candidates may be hired by QnR Group, or another company within the Group, depending on the role and project. Role overview We're looking for a RedHat OpenShift Application Administrator to join a project with one of our public-sector clients in Warsaw and to own the lifecycle of applications running on OpenShift — from deployment and exposure to security, scaling, and day-to-day support. You'll partner closely with development teams to keep applications reliable, secure, and production-ready.

The ideal candidate will be responsible for: Deploying and maintaining containerized applications on OpenShift (Helm, templates, Operators). Managing namespaces and projects — RBAC, quotas, limit ranges. Configuring application exposure and routing (Routes, Services, TLS). Implementing application security (SCCs, Pod Security, Network Policies, secrets). Scaling and optimising applications, troubleshooting performance issues. Supporting dev teams with pod troubleshooting, logs, rollbacks. Monitoring application health and maintaining documentation/runbooks. To excel in this role, you'll need: At least 7 years of relevant IT professional experience with at least 3 years in a similar position. Bachelor’s or Master’s degree in Computer Science, Engineering or a related technical field. RedHat Certified OpenShift Administrator or equivalent internationally recognized certification . Strong knowledge of YAML, Helm charts, and OpenShift templates. Experience with Routes, Services, Ingress, and TLS configuration. Experience implementing Network Policies and Security Constraints. Experience with monitoring/logging using OpenShift tools, Prometheus, and Grafana. Hands-on experience with GitOps/ArgoCD and CI/CD pipelines (Jenkins). Scripting and automation skills in Ansible, Python, and Helm. English at B2 level (CEFR) or higher.