PROFESSIONAL EXPERIENCE:

Confidential

Linux Systems Administrator

Responsibilities:

• Experience administering, installing, configuring and maintenance of Linux Experience installing, upgrading and configuring RedHat Linux 4.x, 5.x, 6.x using Kickstart Servers and Interactive Installation Responsible for creating and managing user accounts, security, rights, disk space and process monitoring in Solaris, Cent OS and Redhat Linux Configures DNS, NFS, FTP, remote access, and security management Creates Linux Virtual Machines using VMware Virtual Center Installs, upgrades and manages packages via RPM and YUM package management Kernel patches, systems configuration, performance tuning on Unix and Linux systems Installs, configures and supports Apache on Linux production servers Manages Patches configuration, version control, service pack and reviews connectivity issues regarding security problem Managing systems routine backup, scheduling jobs and enabling cron jobs
• Administers VMware Infrastructure Client 3.5 and Vsphere 4.x and 5.x Performing Monitoring of networking system performance utilizing Fog - light NMS application Performing installation and configuration of: NFS, SSH, HTTP, HTTPS, DNS, POSFIX, FTP, and SFTP Basic understanding of Puppet 4.0.3 (software automation tool management) Experience with network troubleshooting by using tools such as nslookup, TCP DUMP, netstat, ping, nmap, rsync, and more Installing database server (postgreSQL 9.5 version, Oracle 11g/12c), and Mysql/MariaDB Performing bash (Bourne Against Shell) scripting
• Works with Database administrators to tune kernel for Oracle installations Creating Linux virtual machines by using VMware Center or Amazon web services (Ec2, VPC, Subnet, ACLs, Security Group, Network Interface, Internet Gateway) Led in-house team tasked with reducing virtual server deployment time Implemented Ansible tools in order to exceed the reduction expectation Coordinate with cross-functional team to develop best practices and, standards

Confidential

Linux Systems Administrator

Responsibilities:

• Installed RedHat Linux using kickstart Created, cloned Linux Virtual Machines, templates using VMware Virtual Client 3.5 and migrating servers between ESX hosts Managed systems routine backup, scheduling jobs, enabling cron jobs, enabling system logging and network logging of servers for maintenance
• Performed RPM and YUM package installations, patch and another server management Installed and configured Logical Volume Manager - LVM Experience in creation, and managing user accounts Documented all setup procedures and System related Policies (SOP's) Performed general application support, and ticket resolution Provided 24/7 technical support to Production and development environments Performed IPtables, Access Control Lists, and Setting up key pair Administrated DHCP, DNS, and NFS services in Linux Installed PostgreSQL 9.4 version, and allocating space for postgreSQL DBA Created and maintained user's accounts, profiles, security; rights disk space and process monitoring Provided technical support by troubleshooting Day-to-Day issues with various Servers on different platforms

Confidential

Linux Administrator

Responsibilities:

• Experience installing, upgrading and configuring Red Hat Linux 6,7 Coordinate and consult with end - users, application development, infrastructure, client services, vendors and team members to meet and exceed customer requirements and end-user satisfaction Building servers with jumpstart / kickstart, CD with corporate requirements Identified protocol problems and strengths, collected data in customer experience to assist in development Successfully Installed, configured, and resolved issues with Apache/Tomcat Analyze systems, servers, applications, networks and input/output system performance Implement
• Appropriate security controls to mitigate risk and threats to the system Handles all application and server configuration releases Installed and configured Logical Volume Manager - LVM and RAID Performed memory and swap management to improve optimization and performance of the server Applies quarterly patches to all DEV, UAT, and PRD Linux environments per company policy Experience in kick-start installations, support, configuration of maintenance of RHEL 5/6,7 and x86-64 Servers under heterogeneous environments Address L1/L2 issues debugging problems Manages patches configuration, service pack and reviews connectivity regarding security problems Bash Scripting, automating cron-jobs Basic Managing and maintaining EC2 Instances

Confidential

System Administrator

Responsibilities:

• Experience as Red Hat Enterprise Linux Systems Administrator and performed support role for applications on missions critical Enterprise Networks and Multi - server environment Maintain, troubleshoot, and diagnose software, peripherals, network systems, mobile devices, and other equipment Manage security, including basic firewall and selinux configuration Monitors systems performance and ensures compliance with security standards Created Logical volumes, Volume Groups, RAID and manipulated them as required Rectified many issues by instituting best practices in system log analysis, backup, and
• Network RPM and YUM package installations, patch and other server management Responsible for Incident detection and recording, classification and initial support - Change Management Installation of SSH and configuration of keys bases authentication Familiar with switch, firewall, servers and routers
• Configured distributed files systems and administering NFS server and NFS clients and editing auto-mounting mapping as per system / user requirements Documentation: document the steps in solving most common problems Managing and maintaining ec2 instances via AWS. Deploying and managing systems in VMware.