Senior Linux System Administrator

OATI • Bloomington, MN • 8h ago

Open Access Technology International, Inc. (OATI) is seeking an experienced Senior Linux System Administrator to join our team. The ideal candidate will have 5+ years of hands-on experience in Linux system administration, system design, and network management. You will play a critical role in designing, deploying, and managing enterprise-level infrastructure while ensuring the optimal performance, security and scalability of our systems. The starting salary for this role ranges from $87,200 - $155,000 per year commensurate with experience. Responsibilities: System Design & Network Architecture: o Design and implement scalable and secure Linux-based infrastructures. o Develop and maintain network architectures that support business objectives. Linux OS Management: o Install, configure, and manage multiple Linux distributions (e.g., Alma Linux). o Perform system upgrades and patches to maintain optimal system performance and security. Virtualization & VM Management: o Create, manage, and troubleshoot Virtual Machines (VMs) in VMware, Proxmox or other virtualization platforms. o Ensure high availability and fault tolerance across VM deployments. Database Clusters Management: o Create, configure, and manage database clusters for MongoDB, PostgreSQL, and other relational/non-relational databases. o Implement clustering strategies for high availability and disaster recovery. Component & Service Deployment: o Deploy, manage, and monitor layered services like Kafka, MongoDB, and PostgreSQL. o Ensure the smooth deployment of applications and services in production environments. Automation & Configuration Management: o Develop and implement automation scripts using tools like Ansible to deploy and manage systems and applications at scale. o Optimize infrastructure management processes to reduce manual intervention and errors. System Monitoring & Optimization: o Monitor system health, troubleshoot performance bottlenecks, and implement solutions to optimize resource usage. o Use monitoring tools and logs to proactively identify and resolve system issues. Collaboration & Documentation: o Collaborate with software engineers, network engineers, and security teams to ensure the proper integration of systems and services. o Document processes, architecture, configurations, and troubleshooting steps to maintain consistent, reliable systems.

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