Providing all levels of support of Linux servers.Developing automation's in Python, shell script and Ansible playbookAnalyzing and remediating vulnerabilities at OS and application level.

Configuration & Maintenance of Linux flavors running in AWS and on premise environment.Written shell/python scripts to automate day to day tasks such as monitoring and file loading to application.Fixed OS level vulnerabilities by working with IT Security team.Applied releases and hotfixes to application written in Ruby on Rails with the help of Capistrano.Created and Administered VM's in ESXi 6.0.Upgraded resources for VM's through VCenter.Worked with QA and database… Show more Configuration & Maintenance of Linux flavors running in AWS and on premise environment.Written shell/python scripts to automate day to day tasks such as monitoring and file loading to application.Fixed OS level vulnerabilities by working with IT Security team.Applied releases and hotfixes to application written in Ruby on Rails with the help of Capistrano.Created and Administered VM's in ESXi 6.0.Upgraded resources for VM's through VCenter.Worked with QA and database team to fix issues identified at application & OS level.Applied OS patches and upgrades on a regular basis, and upgrade administrative tools and utilities. Show less

• Worked as System/DC admin, providing end to end support for servers, an environment with more than 6500 servers which includes physical & vm servers.• Setup, maintenance and troubleshooting of windows & Linux Servers in the network. This also included bug fixes/patches/upgrades for the Servers. • Configured LDAP/NIS Domain Services roles; configured network infrastructure roles; configured file and print services• Being part of the high level technical escalation team, handling… Show more • Worked as System/DC admin, providing end to end support for servers, an environment with more than 6500 servers which includes physical & vm servers.• Setup, maintenance and troubleshooting of windows & Linux Servers in the network. This also included bug fixes/patches/upgrades for the Servers. • Configured LDAP/NIS Domain Services roles; configured network infrastructure roles; configured file and print services• Being part of the high level technical escalation team, handling the escalated issues on the servers• Worked with hardware engineers to replace CPU, HDD and Memory.• Configuration and troubleshooting of NFS server, Samba and clients• Documentation of all day to day activities• Monitored system resources (CPU,Memory & Hard Disk) and takes necessary action if performance of server is slow Show less

Linux System AdminstrationAdministering application Servers(Apache Tomca)Mysql and MariaDB, Redhat Cluster.Administering Citrix XEN Virtual Machines.

• Administered Apache tomcat and mysql• Integrated Servers & storage in Grameenphone Datacenter,Bangladesh• Administered and configuring netapp FAS 2020 which included netapp migration• Configured and administering RHEL Cluster and LVM's• Did mysql to mariadb migration • Taken Backups of Servers and application file systems/drives• Was part of Citrix Xen virtualization project • Supported Servers of 15 Airtel african sites• Worked with product support /… Show more • Administered Apache tomcat and mysql• Integrated Servers & storage in Grameenphone Datacenter,Bangladesh• Administered and configuring netapp FAS 2020 which included netapp migration• Configured and administering RHEL Cluster and LVM's• Did mysql to mariadb migration • Taken Backups of Servers and application file systems/drives• Was part of Citrix Xen virtualization project • Supported Servers of 15 Airtel african sites• Worked with product support / Engineering teams for critical issues• Analyzed tickets generated in Zabbix and following up• Maintained Hardware inventory for all sites• Writing Shell scripts based on requirements Show less

• Setup, maintenance and troubleshooting of Windows/Linux OS in the network • Configured NFS, samba share in linux • User Management –addition, deletion, modification & applying security. • Installation & configuration of mysql database• Managed FTP Servers • Maintenance of LAN. (Configured switches,Wireless routers and VPN devices) • Setting up and managing Firewalls. (IP tables) • Hosting Intranet Applications in linux with apache as the web server Configure… Show more • Setup, maintenance and troubleshooting of Windows/Linux OS in the network • Configured NFS, samba share in linux • User Management –addition, deletion, modification & applying security. • Installation & configuration of mysql database• Managed FTP Servers • Maintenance of LAN. (Configured switches,Wireless routers and VPN devices) • Setting up and managing Firewalls. (IP tables) • Hosting Intranet Applications in linux with apache as the web server Configure DNS/DHCP Servers in windows/linux Show less