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Work Experience
Information Security Specialist
NTT Data• March 2019 - Present
• Responsible for managing Citi Authentication and authorization infrastructure including in-house developed products and industry standard products like Powerbroker, CitiSAFE, Safeword, CyberArk etc. • Manage production support issues from start to finish. Including; troubleshooting, providing short- and long-term solutions and root cause analysis. • Responsible for deployment of Security tools such as Qualys, Illumio into the entire Cyber Security infrastructure using Automation tools like Chef. • Respond and resolve application support alerts, user related requests and issues. • Escalate issues to vendor support / provide root cause / incident reports. • Participate in Project / BAU / AdHoc tasks. • Work closely with related infrastructure and application groups. • Monitoring and managing AutoSys scheduled jobs. • Implementing user related requests in application databases. • Decommissioning of infrastructure applications. • Monitor infrastructure using provided monitoring tools using Splunk. • Incident reporting and tracking with the help of ticketing tool like ServiceNow.
Linux Administrator II
Rackspace• December 2015 - March 2019
• Installation and configuration of Red Hat Enterprise Linux, CentOS and Debian servers, maintenance & system administration. • Provisioning and decommissioning of virtual and physical Linux servers using VMware vSphere desktop/web clients, HP & DELL ILO DRAC consoles. • Troubleshooting problems like Disk space utility, CPU utilization, Load, Connection Refused etc. • Virtualization with VMware ESX/ESXI and Associate level experience with AWS. • Deploying multiple VM’s using different OS templates. • Taking Snapshots and cloning the VM’s in the VMware environment • Managing the whole infrastructure through configuration management tools like Chef with the help of CI (Continuous integration) tools like Jenkins and version control like Git. • Implementation and troubleshooting of network services like NFS, FTP, NTP, Telnet, SSH. • Managing package install/upgrades using YUM and RPM. • Backend solution, day to day system admin & monitoring, file system management and disk management, wrote shell scripts for automated installations, log extraction. • System health check report creation and analysis with the suggestion of best fit. • Adherence of client specific standard operation procedures. • Windows Active Directory management. • Incident reporting and tracking with the help of ticketing tool like Issue track and JIRA. • Managing and monitoring of entire infrastructure using tools like Zabbix, New Relic. • Worldwide customer support to resolve server, network, and system wide issues.
Linux Administrator
Innefu• July 2013 - October 2015
• Responsible for in-house installation, configuration and deployment of Linux servers on client sites. • Installation and configuration of LAMP stack. • Configuration and management of Apache and Tomcat web server. • Hosting of Java based application builds on web servers like apache, tomcat using MySQL/MariaDB databases on client sites. • Taking automatic backup of MySQL databases using MySQL replication techniques. • Performing and configuring virtual hosting, web authentication on apache web server. • Job scheduling using crontab. • NFS management - take care of user accounts/groups, setting up of NFS environment. • Processes administration and management (start/stop/kill various processes/sub processes). • Monitoring system performance parameters using IOSTAT, VMSTAT and fine-tuning. • Regular system administration and maintenance. • Creation and maintenance of user accounts, profiles, and security rights. • Installation/upgrade, system start up, and system shutdown as needed. • Development of bash scripts to ping the servers and add users to the boxes. • Resolution of system errors and crashes, disk space problems, huge file sizes and file system full errors. • Technical documentation for various projects. • Backup and recovery using backup tools like tar, dump and zip. • Configuring servers like DNS, NFS, Samba, FTP, SSH. • Monitoring the Linux server's using monitoring tool Nagios. • Virtualisation with VMware.
Education
Gautam Buddh Technical University, Lucknow
Computer Science, B.Tech• July 2009 - June 2013
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