Brampton, Ontario, Canada
An IT Professional having a Work Experience of 5.3 years as a Linux Administrator. Hands on experience in IT Operations following ITIL standards. Experience in managing File systems using LVM. Managing virtual servers, using VMware. Managing NFS, NTP, Apache Server, Mysql, Nginx, PHP. Managing servers in Cloud environment. Hands-on Experience with Amazon Web Services (AWS) including EC2 & ELB, S3, IAM + MFA, SQS & SNS, Route 53, EBS & EFS.
Providing LAMP support to Rackspace Tier 3 to Tier 7 customers (1000+ customers) via calls as well as on tickets. Providing Linux OS support to Datapipe customers (Rackspace Acquired Company) based on ITSM model. Providing Linux OS Anywhere support i.e., hosted environment can be any of the following - Rackspace Cloud/AWS/Physical/VMWare. Hands-on Experience with Amazon Web Services (AWS) including EC2 & ELB, S3, IAM + MFA, SQS & SNS, Route 53, EBS & EFS. Experience in working on OS related issues such as NFS, LVM, Package Management, Networking, Performance, Storage & FS, PCS (RedHat Clustering), User Management, SFTP, Postfix etc. Deployment of LAMP stack on fresh servers. Managing servers on different hardware such as Dell, HP & IBM. LUN expansion/vDisk expansion experience. Managing resources in VMware via vCenter server, deploying Virtual Machines using clones, snapshot and templates. Experience in performance tuning for Apache/PHP-FPM. Experience in setting up Mysql/MariaDB replication. Experience in fixing Mysql/MariaDB related admin issues. Helping customers in migrating their infrastructure from Physical environment to Cloud(AWS/Azure) or to upgrade from CentOS6.x to higher OS version. Manual and automated patching via IBM BigFix.
Remotely Managing 3000+ Linux & UNIX Virtual and Physical Servers including Production, Testing and Development Servers in physical, VM and AWS cloud environment. Credited with experience in server installing, configuring, upgrading, performance tuning, managing and decommissioning servers. System Administration - including managing the trouble ticket queue, responding to proactive monitoring alerts, executing change controls, routine maintenance, performance monitoring, tuning, and system diagnostics. Interaction with 3rd party vendors, Client Teams and senior onsite Systems Engineers as necessary to optimally perform job responsibilities. 24x7 rotational support, including escalation to Emergency Response Team (ERT), driving Root Cause Analysis (RCA), Preventative action follow through, and participation in weekly operations reviews. Patch installation and management. Package Management and troubleshooting for rpm and YUM. User administration for local and LDAP users via netgroups and hostgroups. Troubleshooting issues related to CPU, memory, swap and file systems etc. Managing SLA/OLA and NC accurately. Performing kernel and firmware upgrade. Setting up and troubleshooting NFS, Samba Server Clients for files sharing. User management: creation/deletion of users on server, assigning necessary permission/ownership and assigning roles and policies. Reviewing user generated request/queries and resolving them as per process & requirement. LVM (Logical Volume Manager): Create, extend, reduce and cleanup of file systems. Managing servers in vCenter server, Server setup, stop, suspend, reboot servers using vSphere client. Managing and handling servers in various HP ILO and DRAC versions. Basic handling of AIX LPARS via HMC GUI. Managing the responsibility of quarterly patching of Linux servers in automatic and manual patchwaves. Handling vulnerability management using Scenter and Tenable. AWS: EC2 instance creation/ Modification, EBS volumes addition and removal.