At Lognext we have been accompanying companies and teams for more than 18 years to identify and implement the technology necessary to advance, making their challenges and objectives our own and getting closer to their reality.

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Being a NEXTER means that your career and talent become meaningful to you and those around you, allowing you to build what matters most to you and reach your next level.
We are looking for a Senior Kubernetes / OpenShift Platform Engineer to join our team for a multinational leader in the financial sector .

This is a hands-on platform engineering position focused on the administration, operation and evolution of Kubernetes environments in production . We are looking for someone who understands Kubernetes beyond application deployments and is comfortable working at cluster, control-plane, node, networking and infrastructure level .

Key Responsibilities:

• Operate, administer and evolve Kubernetes and Red Hat OpenShift platforms in critical production environments, ensuring reliability, security, scalability and high availability.
• Build, configure and maintain Kubernetes clusters and their underlying infrastructure, working with control-plane components, worker nodes, networking, storage, scheduling and cluster lifecycle operations .
• Troubleshoot complex platform incidents involving Pods, nodes, networking, storage, scheduling and Kubernetes control-plane components, identifying root causes and implementing permanent solutions.
• Design and improve highly available Kubernetes architectures , including control-plane resilience, multi-node deployments
• Automate infrastructure provisioning, configuration and operational tasks using Ansible, Terraform, Helm and Bash/Python ,



reducing manual intervention and improving platform consistency.
• Work closely with DevOps, SRE, Infrastructure, Application and Security teams

Skills
Essential:
• Strong hands-on experience administering Kubernetes clusters in production
• Solid understanding of Kubernetes architecture and core components, including kube-apiserver, etcd, kube-scheduler, controller-manager, kubelet and worker nodes .
• Experience with Kubernetes scheduling and workload placement using labels, nodeSelector, affinity/anti-affinity and taints/tolerations .
• Experience troubleshooting Kubernetes at platform level, including node failures, Pending/CrashLooping workloads, networking, resource constraints and cluster-level incidents .
• Strong understanding of high availability, scalability and resilient Kubernetes architectures , including control-plane redundancy and multi-zone or multi-datacenter deployments.
• Strong Linux/Unix administration skills and confidence diagnosing issues at operating-system and infrastructure level.
• Experience with Kubernetes networking concepts such as CNI, Ingress/Egress, Load Balancers, NetworkPolicy and service connectivity .
• Experience with Kubernetes persistent storage concepts such as Persistent Volumes, Persistent Volume Claims, StorageClasses and CSI drivers .
• Hands-on experience with Ansible and Terraform for infrastructure and configuration automation.
• Experience with monitoring and observability solutions such as Prometheus, Grafana,



Alertmanager, OpenTelemetry, Splunk or similar .
Highly Valued:
• Hands-on experience with Red Hat OpenShift 3.x/4.x , including administration, upgrades and troubleshooting.
• Knowledge of OpenShift Projects, Routes, Operators and Red Hat CoreOS .
• Experience managing OpenShift nodes through MachineConfig and MachineConfigPool , including OS-level configuration changes such as networking, SSH or NTP.
• Experience building or participating directly in the implementation of Kubernetes clusters from scratch .
• Experience with large-scale, multi-cluster or multi-region Kubernetes environments.
• Experience with CI/CD and GitOps tooling such as Jenkins, GitLab, Bitbucket, GitHub Actions or Argo CD .

Job Conditions & Benefits:
Permanent contract.
Work Mode: Hybrid, 4 days onsite/ per month (Madrid)
Competitive salary.
Professional Development: Access to an annual budget dedicated to advancing your skills through professional certifications.

Join our expert team, where creativity, commitment and the ability to bring new perspectives are essential to make a difference in a world full of opportunities.

Are you ready for your NEXT LEVEL ?

In Lognext we are committed to equality between women and men and as proof of this we have a registered and published Lognext Equality Plan. xiphteb We also believe that multiculturalism is a source of values, experiences and knowledge that add value to our projects, which is why we believe in diversity, and we are committed to it. We work every day to create environments where people are treated with respect and dignity no matter where they come from, we do not discriminate based on race, religion or beliefs, ethnicity, disability, age, nationality, marital status, sexual orientation, or gender.

📌 OpenShift Engineer – Kubernetes & Automation Platform (Madrid)
🏢 Lognext
📍 Madrid