Prabhat Kumar Yadav

Experience

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  Pranveer Singh Institute Of Technology , Kanpur

  Aug 2010 - Jul 2014

  Student

  Electronics and Communication Engineering

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  HCL Technologies (Infrastructure Services Division)

  Nov 2014 - Apr 2017

  Analyst

  • Basic Linux Administration.• User administration including adding/deleting users, modifying user accounts, locking/unlocking and managing sudo users on servers for various teams as per their specific requirement• Working with user/group permissions, file permissions.• Installing/upgrading various packages from yum and rpm.• Scheduling jobs with cron, services administration.• Coordinating with vendors like Symantec, HP, IBM and Dell for resolving issues and hardware replacements. Working with global UNIX members team, providing 24/7 support to clients on UNIX servers.• Coordinating Provide on-call support in emergencies.• Managing virtual servers with the help of VSphere Client.• Diagnosing and monitoring performance issues like CPU Utilization, Memory Utilization, and Disk Utilization.• Troubleshooting logon problems, boot process.• Basic Scripting • Server Patching• Adding cluster Nodes online & offline and manually conf and Extending Cluster nodes.• Analyzing system logs, web server access logs for diagnosing Severity 1 incidents.• Server build using kickstart installation• Managing servers remotely using SSH console, ILO, OA.• Configuring LVM and managing the volumes. Show less

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  UnitedHealth Group

  Apr 2017 - Dec 2018

  IT Operating System Analyst

  • Managing users and group using LDAP and QAS.• Managing Virtual Server using VCentre . Troubleshooting the server issue using console, checking event logs is our daily routine.• Vmotion the guest machines over Host machines/Datastores.• Migrating the virtual machines across Vcenter.• Adding/removing hardware resources on guest VM machine.• Performance tuning by changing ulimits, kernel parameters.• Managing filesystem using LVM on virtual and physical servers.• Managing VCS cluster machines, switching resources group , performing hardware activities etc whenever required.• Managing VxVm filesystem on VCS servers .• Providing RCA on customer request for critical servers by analyzing the logs for the critical servers. • Generating the VMSS file for virtual servers, configuring kdump to analyze the logs for crash/hung servers.• Managing physical servers of HP using ILO, providing logs and work with vendor for the replacement of the part.• Create and manage script to automate daily routine work, implementing a configuration over number of servers at a time to save time. Show less

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  NTT DATA Services

  Dec 2018 - Oct 2019

  System Administration Senior Specialist

  Here I was a part of 20+ members providing L1 – L3 level Linux. As a Linux administrator, my responsibility is to perform dayto-day OS and Server related activities and handling Customer escalations. Managing client’s Query such as channel updates, client registration, package deployment etc. Managing & troubleshooting of Linux Servers. Increasing Network optimization, Kernel Optimization, File system performance in Red hat Enterprise Linux and Suse Linux. Issue logging, escalation and follow up. Setting up new facilities, troubleshooting OS related issues but it’s not limited to this itself. Show less

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  Optum

  Oct 2019 - now

  Sr. System Management Analyst