SUMMARY:

• A talented Linux framework administrator/engineer with north of 5 years of involvement with conveying, provisioning, designing, and investigating Unix/Linux servers.
• Exceptionally devoted in expanding execution and guaranteeing a profoundly accessible and secure environment.
• Experienced working with Ansible, Bash, CentOS, RHEL, AIX, Solaris, Github, AWS, and VMware close by distributed computing foundation. With a will to proceed to learn and grow an expert profession ahead of time to obtain exceptionally talented experience.

TECHNICAL SKILLS:

Operating System: Linux, Unix, Red Hat Enterprise Linux (RHEL) (6/7/8), CentOS (6/7), Windows

Virtualization/Hardware/Cloud: Amazon Web Services, VMware, HP, Dell, Cisco UCS Blades

DevOps/OS Utilities/Tools: Bash Shell Scripting, Python, Red Hat Satellite 6, BladeLogic, Apache web server, Ansible, Ansible Tower, GIT, Docker, S3, GlusterFS, FUSE, XFS, Ext3/4, Sysctl, TCP/IP, UDP/IP, ICMP, TCPDump, DNS, DHCP, PXE - Boot, Kickstart, FTP, SFTP, NFS, HTTP/HTTPS, Nginx, TOP, SAR, IAM, AMI, Terraform, YAML, Multipath, SAN, NAS, NFS v3/v4, SCSI, Fdisk, Logical Volume Manager, RAID, MDAdmin, Kernel, YUM, DNF, LDAP, AD, Putty, MobaXterm, GIT, Jenkins, VMware RestAPIs

PROFESSIONAL EXPERIENCE:

Confidential

Linux Systems Administration/Engineer

Responsibilities:

• Administering Red Hat Enterprise, CentOS, AIX, Solaris systems
• Utilizing Red Hat to construct and provision server host profiles within Red Hat Satellite and deploy across virtual VMWare and physical HP hardware bare metal servers using iLO management IPs
• Plan and construct Red Hat Host groups and content views of repositories to manage and maintain patching structure of different lifecycle environments across the infrastructure
• Utilizing Red Hat inventory of registered RHEL servers to synchronize with Ansible Tower dynamic inventory of hosts
• Using Ansible to configuration management and achieve automation across the infrastructure of Red Hat Enterprise Linux Servers
• Being able to construct and write Ansible roles and playbooks for various of different purpose and objective
• Familiarity of AWS infrastructure and different components of services such as S3, EC2, RDS, IAM, AMI, Route53, CloudWatch, CloudTrail, Security Groups, ACL, VPC, Tagging
• Utilizing Terraform Templates to provision and deploy cloud computing infrastructure of resources
• Proficient writing and constructing BASH shell logic of automating administration tasks at hand
• Troubleshooting production systems working with business applications.
• Creating virtual machines for installation of applications and servers using VMware.
• Monitoring clusters for high availability and resource management using VMware HA and DRS.
• Monitoring users and groups using LDAP and Active Directory.
• Managing VMware VCenter and VSphere in production. Providing support and backups of vms after business hours. Creating ESXi hypervisors with hardware raids.
• Automating configurations and installations using Ansible.
• Creating playbooks to deploy and configure multiple servers.
• Creating SSH keys for password less entries and VPN servers.
• Installing and configuring HTTP, DNS, DHCP, FTP, NFS and PXE boot servers.
• Monitoring web applications on production systems.
• Creating DNS records and managing IP addresses and hostnames using DNS and DHCP.
• Installing OS patches, system patches, and vulnerability patches using BladeLogic.
• Creating local YUM repository and packet management using RPM and YUM.
• Monitoring system and infrastructure health using Linux CLI and Nagios.
• Ticket management and solving issues using ServiceNow.
• Creating bash shell scripts to automate tasks such as monitoring machine performance and repetitive daily tasks.
• Creating iptables rules to manage firewall and harden servers.
• Communicating and collaborating with network, database, and storage administrators to perform server builds.
• Working with different teams after business hours to provide support for patches and upgrades. Supporting systems on call with monthly rotations.
• Migrated systems from on premises to AWS with Migration Hub.
• Managed EC2 instances and provided troubleshooting support with deployed instances.
• Created backups and deployed S3 buckets. Provided object availability and durability solutions.

Confidential

Linux Systems Administrator

Responsibilities:

• Providing support with developer’s infrastructure servers.
• Deployed Linux Operating System via PXE-boot and kickstart structure of provisioning and deployment using tools like DNS, DHCP, FTP
• Worked across user management using NIS, user groups, and net groups of servers
• Manually added and customized user creation using useradd command utility, troubleshooting user access issues utilizing the var log secure authentication logs and further debug the culprit
• Server file system capacity management using df, du, and increase by Logical Volume Manager
• Installed and configured NFS servers, exporting RHEL to RHEL directories over the network using version and protocol NFS v3
• Configured server host name and FQDNs when deploying and building newly servers, assured DNS resolve file is configured to point to internal DNS servers
• Configured NIC for Configured, managed and provisioned RHEL, CentOS, and Ubuntu servers.
• Migrated physical servers to VMware and configured virtualized infrastructure using vCenter.
• Managed and provisioned virtual machines using templates.
• Installed and partitioned storage and installed file systems such as EXT3, EXT4, and XFS. Monitored servers’ performance and their health.
• Resolved basic and critical system issues in a timely manner.
• Automated daily tasks and scheduled them using cron and at utilities.
• Created documentation of basic operation procedures and tasks using Confluence.
• Used LVM to manage disk space more efficiently.
• Collaborated with bonding to enhance performance and redundancy.
• Racked, stacked, and wired servers in the data center. Troubleshoot issues with servers related to on premises.
• Built new systems using PXE boot and the kickstart file.
• Set up a service port using ILO and IDRAG for remote access to the console.
• Decommissioned servers that were on premises and provided upgrade support.
• Managed upgrades and patches using Red Hat Satellite on production systems.
• Troubleshoot production systems with Linux CLI commands