SUMMARY

• I am a skilled professional with 5years of experience providing systems administration solutions.
• Certified Redhat System Administrator RHCSA V7/8 Centos v7/8.
• Use VMware ESXi Server and VMware VSphere for virtualization
• LVM Management, NFS, SAN, DHCP, DNS, SSH, JIRA Ticketing system writing and modifying scripts using bash/shell, debugging issues that hamper system performance.
• Background experience involves working with technical teams and clients to structure and maintain an IT environment.
• Knowledgeable with Ansible playbooks for task automation and monitor systems performance using Nagios and check - MK.
• Problem Solving - Proven ability to troubleshoot and develop both creative and innovative IT solutions to business challenges. Successfully manages change for improved performance and greater team efficiency.
• Exceptional Interpersonal and Communication Skills - Proficient in promoting confidence and cultivating and developing long-lasting relationships while interfacing with people of diverse backgrounds and cultures.
• Work Ethic and Professionalism - Solid professional standards and an excellent record of dependability. Maintains focus on achieving bottom-line results while always ensuring availability of hardware and server resources.
• Adding new development user accounts, removing users, resetting user accounts in RHEL to allow new developer's access to Red Hat Servers
• Install and update OS packages/patches using YUM and kick-start files
• Automate existing and new procedures with BASH scripting
• Experience in Creating Ansible playbooks to install applications as well as create local users.
• Create specific File Systems for middleware developers and database teams (LVM)
• Configure Permissions to Directories and file systems
• Use Active Directory to add users and groups Password resets and permissions in ( AD)

TECHNICAL SKILLS

Operating Systems: Red Hat Linux Enterprise, Centos 7&8

Networking: SSH, DNS, NFS, DHCP, and FTP; Debugging Networks

Virtualization: Deploy Virtual Machines using templates and kick-start files Use VMware VSPHERE and Oracle VM virtualization infrastructure

Scripting: BASH and Shell Scripting

Tools: Used: Ansible, Nagios, Gitlab, IPA, Jira, Slack, and Pritunl Active Directory AWS Services, ec2, s3

PROFESSIONAL EXPERIENCE

Confidential, MD

Linux System Administrator

Responsibilities:

• Provide critical support to clients in the resolution of network, server, and virtualization hardware issues, related to over 250 Linux servers in dev, staging, and production environments.
• Management of vSphere 6.x server virtualization software by VMware through deployment and maintenance of RHEL 7/8, CentOS 7/8, and Ubuntu server operating systems.
• Continuous IT Infrastructure monitoring with Check mk and Nagios, as well as backup & recovery with enterprise-level
• Utilization of LVM for managing the varying storage needs of multiple users across the infrastructure.
• Provide support to customers running Red Hat Enterprise Linux on workstations and simulation servers.
• Daily use of the issue tracking software Jira, to troubleshoot tickets related to Apache and Web Servers, NFS shares, autofs, and identity management with FreeIPA. And resolve day-to-day end user support requests received via trouble ticket, telephone and email.
• Configuration management with Ansible to provision multiple server environments and administer managed hosts efficiently, as well as perform regularly scheduled Patches of dev, staging, and production environments.
• Cloning of Virtual Machines, creating Virtual Machines, migrating VMs across ESX hosts, and VM templates.
• Daily use of version control systems GitLab to maintain concurrent development, team collaboration, and high availability.
• Develop and maintain collaborative relationships with management teams, network engineers, and development teams.
• Maintain centralized documentation and internal wiki for continuous improvement and efficiency.
• Configures DNS, NFS, FTP, remote access, and security management.
• Create, configure, and maintain EC2 instances and S3 buckets in the AWS environment.
• Use Active Directory to users and groups AD

Confidential, Ashburn, VA

Jr Linux System Administrator

Responsibilities:

• Provide support to customers running Red Hat Enterprise Linux on workstations and simulation servers.
• Created/configured file systems and file system attributes (permissions, encryption, and access control).
• Monitored production systems, applications, and network performance via network monitoring tools.
• Performed daily system monitoring, verifying integrity and availability of hardware and server resources.
• Experienced in managing users and groups, including the use of a centralized directory for authentication.
• Schedule cronjob to help engineering team who are investigating the malicious issue on the server
• Backup files from local to remote servers
• Monitor and control disk space usage as well as swap space management
• Used VMware Vsphere virtualization infrastructure . Deployed virtual servers using templates and kick-start files, migrate virtual machines across hosts and data stores.
• Interacted directly with users to diagnose/correct major system issues and address technical concerns.
• Deployed, configured, and maintained systems, including software installation and updates to core services.
• Provided input on hardware/software purchasing, prioritizing return on investment to optimize IT spend.
• Maintained smooth operation of multi-user computer systems through collaboration with hardware and network engineers.
• Resolved vulnerabilities by making improvements to network security.
• Conducted testing/troubleshooting (remotely/onsite) for 825 server sets to maintain operational readiness.
• Troubleshoot Linux services/applications; manage firewall rules for new servers to enable communication.