Senior Systems Administrator
My Client is looking for an experienced Senior Systems Administrator contractor. You will have a strong background in Kubernetes, networking, and open-source infrastructure. This role will be responsible for designing, implementing, and maintaining high-availability systems, ensuring security, performance, and scalability across IT environments.
Key Responsibilities:
* Kubernetes Administration: Deploy, configure, and manage Kubernetes clusters for high availability, security, and scalability.
* Networking & Load Balancing: Manage MetalLB, Calico, and Keepalived for network policies, BGP, failover mechanisms, and traffic routing.
* Storage & Data Resiliency: Implement and maintain Longhorn for distributed block storage, ensuring data integrity and availability.
* DNS & Container Registry Management: Configure and optimize CoreDNS for service discovery and Harbor for secure container image storage.
* Linux System Administration: Maintain, secure, and optimize Ubuntu 22.04 environments, ensuring system integrity and compliance with best practices.
* Automation & Scripting: Develop automation for system provisioning, monitoring, and scaling using Bash, Python, or Ansible.
* Security & Compliance: Implement role-based access control (RBAC), vulnerability patching, and compliance monitoring.
* Performance Monitoring & Troubleshooting: Utilize monitoring tools and logs to diagnose system issues, optimize resources, and proactively prevent failures.
* Incident Response & Disaster Recovery: Establish robust backup and recovery plans while ensuring minimal downtime.
Skills and Experience:
* 5+ years of experience in systems administration with a focus on Kubernetes and Linux environments.
* Strong hands-on expertise with MetalLB, Calico, Longhorn, Keepalived, CoreDNS, and Harbor.
* Expertise in Ubuntu 22.04 administration, troubleshooting, and optimization.
* Experience with high-availability networking, storage, and cloud-native technologies.
* Proficiency in automation tools such as Ansible, Terraform, or equivalent.
* Solid understanding of security principles and best practices in containerized environments.
* Strong problem-solving, analytical thinking, and collaboration skills.
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