Total-TECH Co.
” The Job Description”
- Deploy, configure, and manage Rancher environments in production and non-production environments.
- Administer Kubernetes clusters through Rancher, ensuring high availability, security, and performance across the infrastructure.
- Perform ongoing maintenance, upgrades, and patching of the Rancher and Kubernetes clusters.
- Provision, configure, and manage Kubernetes clusters using Rancher, ensuring effective orchestration of containers across multiple environments (on-premises and cloud).
- Monitor and optimize the Kubernetes infrastructure to maintain performance, security, and reliability.
- Implement resource allocation policies, namespace management, and role-based access control (RBAC) for multi-tenant Kubernetes environments.
- Implement and maintain security best practices, including network policies, pod security policies, and Kubernetes security configurations.
- Ensure secure communication and encryption (SSL/TLS) within the Kubernetes cluster and between services.
- Set up auditing, monitoring, and alerting for security events, and respond promptly to security incidents or vulnerabilities.
- Plan and execute horizontal and vertical scaling of Kubernetes clusters and services based on resource utilization and business needs.
- Ensure high availability of the cluster and its workloads by implementing redundancy, failover, and backup strategies.
- Manage Kubernetes storage and persistent volumes for stateful applications.
- Set up and maintain monitoring and alerting for the Rancher platform and Kubernetes clusters using tools such as Prometheus, Grafana, and ELK (Elasticsearch, Logstash, Kibana).
- Monitor the health and performance of Kubernetes clusters, and respond to incidents or issues affecting workloads.
- Ensure proper logging of cluster and container events for troubleshooting and performance analysis.
- Integrate Rancher-managed Kubernetes clusters with CI/CD pipelines to enable continuous delivery and deployment.
- Work with DevOps and development teams to support containerized application deployment, rollback, and scaling.
- Automate deployments using Helm, GitOps, and other tools to manage infrastructure as code.
- Develop and maintain automation scripts to manage cluster operations (scaling, monitoring, backups) using tools like Bash, Python, or Ansible.
- Automate the deployment and scaling of Kubernetes workloads, including creating and maintaining Helm charts.
- Diagnose and resolve issues related to Kubernetes clusters, workloads, and networking.
- Provide technical support to development and operations teams to resolve Rancher or Kubernetes-related issues.
- Monitor cluster resource utilization, identify bottlenecks, and make performance optimizations.
- Implement and maintain backup and recovery strategies for Kubernetes workloads, including persistent storage.
- Develop and test disaster recovery processes to minimize downtime and ensure quick recovery from system failures.
- Create and maintain detailed documentation for the Rancher and Kubernetes environments, including configurations, processes, and troubleshooting guides.
- Maintain runbooks and operational playbooks for Rancher administrators and DevOps teams.
Requirements:
- Strong experience with the installation, configuration, and administration of Rancher for managing Kubernetes clusters.
- Proficiency in Rancher 2.x and its multi-cluster management capabilities.
- Deep understanding of Kubernetes architecture, including API server, etcd, kubelet, scheduler, and controller manager.
- Experience in Kubernetes cluster provisioning, upgrades, security, monitoring, and lifecycle management.
- Proficiency in containerization technologies, such as Docker, and their orchestration using Kubernetes.
- Experience with Helm charts, Kustomize, or similar tools for managing Kubernetes manifests.
- Strong understanding of Kubernetes networking, including CNI plugins, Ingress controllers, and service discovery.
- Experience in configuring and managing load balancers (e.g., Traefik, NGINX) for Kubernetes workloads.
- Familiarity with monitoring and logging tools like Prometheus, Grafana, ELK stack, and Fluentd for monitoring Kubernetes clusters.
- Experience with deploying and managing Kubernetes clusters on cloud platforms like AWS, Azure, and GCP.
- Familiarity with managed Kubernetes services (e.g., EKS, AKS, GKE) and their integration with Rancher.
- Strong understanding of Kubernetes security, including role-based access control (RBAC), network policies, and pod security.
- Experience with service mesh technologies (e.g., Istio, Linkerd) for securing microservices communication.
- Proficiency in scripting languages like Bash, Python, or PowerShell for automating tasks and configurations.
- Experience with configuration management and automation tools like Ansible, Terraform, or Chef.
- Familiarity with DevOps practices, including continuous integration and delivery (CI/CD) pipelines, and their integration with Rancher/Kubernetes.
- Strong problem-solving skills for diagnosing and resolving issues with Kubernetes, containers, and network configurations.
- Bachelor’s degree in Computer Science, Information Technology, or related field.
- 5+ years of experience managing Linux-based systems.
- 3+ years of experience managing Kubernetes clusters in production environments.
- 2+ years of experience with Rancher or equivalent Kubernetes management platforms.
Preferred Skills:
- Experience with service mesh (e.g., Istio) and observability tools for Kubernetes clusters.
- Experience with GitOps frameworks such as ArgoCD or Flux for managing Kubernetes infrastructure.
- Familiarity with backup and restore solutions for Kubernetes workloads, such as Velero.
- Experience in managing persistent storage solutions for Kubernetes, such as NFS, Ceph, or cloud-native storage options.
- Experience with Kubernetes Operators for managing custom resources and deploying complex applications.
Certifications:
- Certified Kubernetes Administrator (CKA).
- Certified Kubernetes Security Specialist (CKS).
- Rancher certification or equivalent.