OpenShift / Red Hat Consultant

Hays Contracting Services seeks a B2B contractor experienced in cloud-native infrastructure, Kubernetes platforms, and DevOps automation for a global OpenShift platform development and operations project supporting a Germany-based organization. The project involves managing a large-scale, highly automated Red Hat OpenShift platform across 20 global installations on bare metal, hypervisors, and cloud, aiming at security, scalability, and availability of production-critical middleware services.

• 10+ years of experience in consulting, platform engineering, or infrastructure roles, with 5+ years hands-on in required technologies.
• Advanced expertise in Red Hat OpenShift administration and operations.
• Strong Kubernetes knowledge including cluster administration, networking, storage, and operators.
• Hands-on experience with Argo CD, GitOps methodologies, and Helm.
• Practical experience with Ansible Automation Platform and infrastructure automation.
• Strong observability expertise covering Prometheus, Thanos, Loki, Alertmanager, and Grafana.
• Experience with AWS services, infrastructure design, and automation.
• Knowledge of Terraform and Terragrunt.
• Strong understanding of networking, security, access management, and compliance practices.
• Proficiency with Git, YAML, and troubleshooting complex platform environments.
• English language proficiency at C1 level.

Nice to have:

• German language skills.
• Experience with Tekton Pipelines.
• Knowledge of Python and/or Go.
• Experience with HashiCorp Vault.
• Knowledge of service mesh concepts.
• Experience with enterprise storage integrations and Kubernetes Operators.

• Install and administer OpenShift clusters using IPI, UPI, and assisted installer methods.
• Manage cluster lifecycles, upgrades, nodes, machine configuration, registries, storage, and networking.
• Implement RBAC, SCCs, Pod Security Standards, OAuth, identity providers, certificates, network policies, compliance, and hardening.
• Design multi-tenancy, namespace isolation, quotas, limit ranges, and network segmentation.
• Develop and operate GitOps deployment models with Argo CD, Helm, Git, and SOPS-encrypted environment values.
• Build monitoring, alerting, and logging solutions with Prometheus, Thanos, Alertmanager, Loki, and Grafana.
• Develop Ansible playbooks, inventories, workflows, job templates, execution environments, and API-based automation.
• Integrate secrets with AWS Secrets Manager and HashiCorp Vault.
• Manage container runtimes, images, registries, operators, CRDs, CSI integrations, load balancing, DNS, ingress, and egress.
• Support backup, restore, disaster recovery, capacity planning, performance optimization, and root-cause analysis.
• Create technical documentation, runbooks, knowledge-sharing materials, and collaborate across teams during incidents.
• Use Terraform, Terragrunt, Tekton, YAML/JSON and Python or Go where needed for infrastructure and automation tasks.

Cooperation type is B2B contract only. English language proficiency at C1 level is required. German is a strong asset but optional.