Senior Systems Administrator - Contract

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.

• 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.

• 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.