• Implemented and maintained VMware vCenter infrastructure, managing virtual machines and ensuring optimal performance.• Manage user & group accounts including creation, permissions, passwords, and registering users with FreeIPA for centralized authentication.• Partitioned storage space and implemented file systems. Strong technical background in Storage, Disk Management, Logical Volume Management (LVM).• Implement security measures to protect Linux systems from unauthorized access, malware, and other security threats. Configure firewalls, set up user permissions, install security patches.• Conducted security auditing and compliance assessments using Lynis, identifying vulnerabilities and implementing remediation measures.• Managed centralized logging and analysis using Graylog, facilitating proactive troubleshooting and security monitoring.• Implement backup recovery plans to ensure the integrity and availability of data in case of system failures. Regularly back up critical data and test recovery procedures using Bacula.• Configured and monitored network services using CheckMk and Nagios, ensuring high availability and reliability.• Automated routine tasks and system configurations with Cronjob, reducing manual intervention and increasing efficiency.• Utilize Bash and Python scripting languages, in addition to Ansible and Forman configuration tools, to automate repetitive tasks and streamline system management processes. • Utilized Docker and Podman for containerization, enabling efficient deployment and scaling of applications.• Configured and optimized NFS to provide shared storage for Linux servers, improving data accessibility and reliability.• Set up and secured FTP servers for file transfer operations, implementing user authentication and access controls.• Document and maintain detailed system configurations, procedures, and troubleshooting steps both on my station and on the Jira ticketing system.