Denys Vasylkovskyy

Linux Project Manager Dupont @DuPont

Experience in Architect, planning, documenting, provisioning, deployment, and lifecycle management of Red Hat Enterprise Linux servers using Red Hat Satellite 6 Administrate and maintained Red Hat Satellite, and Ansible Tower, infrastructure management systems to create and automate administrative procedures Experienced with Git for version control: modified, staged, and committed files to remote and local repositories Source Ansible playbooks and Ansible roles from a GIT branch to Ansible Tower to automate configuration deployment Used IAM to create and manage AWS users and groups, and used permissions to allow and deny their access to AWS resources Experienced in Amazon EC2 setting up instances, virtual private cloud (VPCs), and security groups Provided technical support, solving technical issues associated with daily system administration, operations, repair and monitoring for multiple large-scale Linux-based platforms in complex operational support system. Increasing network performance and applying redundancy on servers through channel bonding Performing RHEL 7 server builds via VMware Maintaining of common Linux services such as Apache, NFS, FTP, DHCP, DNS, and SSH Using Ansible for patching on multiple Linux-based servers to address security vulnerabilities Performing automation tasks by setting up cron jobs with Ansible Experience in RHEL Performance Monitoring tools using vmstat, iostat, iotop, sar and top Configuring SSH keys for secure remote login Troubleshooting tickets, which include storage, network, system related issues and logging RCA using ServiceNow Excellent knowledge on version control systems like GIT and used Source Code Management (SCM) tools like GitHub and other command line applications Hardening servers and tuning system for better performance by modifying kernel parameters (kernel tuning) Using monitors, alarms and notifications for EC2 hosts via Cloud Watch