SUMMARY

• Linux Administrator with 4 years of experience in deploying, maintaining and managing virtual and Bare - Metal servers.
• Experience working on server-based operating systems such as RedHat Linux, CentOS, Windows, and UBUNTU.
• Hands on expertise with virtualization using VMware along with cloud platform systems cooperating across the Red Hat Ecosystem, managing networking, scripting, and system integration configuration as needed by the organization.
• Familiarity with current contemporary and emerging technologies such as Ansible, AWS, Docker, Git and other DevOps tools etc.
• Team player with strong communication, critical thinking, analytical, and fault diagnosis skills looking for a new environment where I can expand and grow my skill set while being an asset to the organization.

TECHNICAL SKILLS

Operating Systems: RHEL 6, 7, and 8, CentOS 6, 7, and 8, Unix, Ubuntu, Windows

Servers: HP/DELL/Cisco UCS Blades, Apache, DHCP, PXE, DNS, SAMBA, NFS, FTP, VMware Virtual Machines

Languages: Bash Scripting, Java, C++, Python, Yaml

File Systems: XFS, FUSE, Ext4, Ext3

Dev-Ops/Automation: Ansible, Amazon Web Services, GIT, Crontabs, Bash Scripting

PROFESSIONAL EXPERIENCE

Confidential

Linux System Engineer & Administrator

Responsibilities:

• Tasked with planning, provisioning to the deployment and further configuring, and maintaining Linux based systems such as RHEL and CentOS 6, 7, and 8
• Familiar and fluent with the Red Hat Enterprise Ecosystem of RH products such as Satellite 6 - Red Hat Content delivery - Subscriptions/Repositories along with provisioning and deployment purposes, Ansible - Automation, Red Hat GlusterFS for storage solution and Red Hat LDAP clients such as Red Hat Directory Services to the successor Red Hat Identity Manager (IDM)
• Problem determination and resolution driven skills to remediate day to day bottlenecks issues across Red Hat Enterprise Linux Servers to obtain the ideal state accordingly to the infrastructure compliance guidelines
• Configured and managed organizations compliance guidelines across all organizations system to be within the auditing expectations, dealt with the organization’s auditing department to provide justification for exceptions
• Disaster recovery planning and performed DR practices per client/customer’s yearly schedule
• Worked alongside application teams to architect planning for the application’s prerequisite and requirements from the OS perspective
• Dealt with day to day Server Hardware Change management when application requirements requested an increase server hardware resources - CPU, RAM and more storage allocation for virtual and physical organizations systems
• Liaison between and across organization teams to achieve common objectives such as VMware team, SAN team, Networking - etc on bridge calls to assess infrastructure issues
• Utilize version control tool GIT to manage and maintain configuration files and Ansible playbooks
• Configured Ansible projects interrogated with the GIT server to push and pull playbooks to be deployed via Ansible GUI webclient across Ansible Tower inventories
• Managed Ansible Tower Projects along with templates and granted user credentials to allow the ability for fellow team members to launch Ansible playbooks
• Developed DevOps methodologies as being exposed to DevOps tools such as Dockers and Kuberentes across Amazon Web Services EC2 instances
• Managed Amazon Identity Management (AMI) via set of access polices for to allow user access to the Amazon Web Services Console for administration purposes
• Monitor system health and troubleshoot performance related issues via Dynatrace alongside OS level system utilities such as vmstat, top, free, iostat, SAR (System Activity Report) and uptime
• Created backups and cloned critical systems using snapshot for virtual machines via VMWare during the implementation of Change management
• Automate repetitive day to day tasks via Ansible playbooks and other infrastructure post build procedures such as appending entries within /etc/fstab
• Constructed Ansible playbooks and documented the purpose and the need of the playbooks for fellow team members to reference & establish a more cohesive working environment
• Check and analyze system logs using splunk to debug and assess the sequence of activity within a system to further identify a specific culprit

Confidential

Linux System Operator

Responsibilities:

• Installed Linux operating systems on Bare-Metal & Virtual servers
• Configured iptables and firewalld for heightened security on Linux systems
• Monitored processes using the ‘PS’ and ‘Top’ commands to adjust and renice processes to optimize performance
• Set password expiration policies on linux system
• Used YUM and RPM for package installation and management
• Worked with TCP/IP configuration
• Configure and manage storage using fdisk and LVM
• Created crontabs to automate daily tasks such as migration of data and backup of system data
• Configure servers using ESXI
• Added extra hard drives and created partitions and file systems for storage/data management
• Tweaked and debugged scripts to run in a case scenario situation as needed to execute the scripts
• Configured and managed network interfaces
• Responsible for user management including creating, modifying, and locking accounts
• Change ownership and permissions of files and directories
• Managed the creation and extraction of tar balls for optimizing storage as well as migration and capacity management
• Assigned hostnames and IP addresses to servers
• Installed and configured SAMBA servers to provide access of Linux directories in Windows and file transfer protocols as needed per the clients/application teams
• Racking and Stacking of Bare-Metal servers
• Resolve network and DNS related issues & further troubleshoot and diagnose network related issues such as reconstructing the OS interface’s network script configurations and execute the newly configuration change via systemctl/nmcli
• Configured and managed NFS export shares across Red Hat Enterprise Linux servers to mount and append entry within the /etc/fstab file for boot persistence
• Creating and extending file systems using ext4, XFS
• Configure SSH and SSH keys for key based authentication
• Setting up ILO and IDRAC on newly racked servers
• Installed & Configured ESXI and vSphere on Rack servers
• Plan and execute operations and maintenance without planned downtime
• Assign IP address and adding them into the DNS
• Monitor IT Help Desk system and work tasks
• Data center inventory management