Aizaz Makandar

Experience

• 

  Tata Consultancy Services

  Aug 2011 - Feb 2018

  Working as Infrastructure Automation SME for Apple client - Internet Service Organization(ISO) group.Few of my key accomplishments in this role included below automations and Process Improvements : - Python (with Apple script) for DC template Automation in Espresso Application - Python Health-check script for Cassandra Application Servers - Using API to access Verdad (Database Management Tool) and nmSys (Monitoring tool). - Auto alert automation for efficient alert handling - Availability-check, Mount issue, Disk utilisation, Puppet-segregator , Automated mail to End Users, etc. - Central Station (Service Now) API automation - Bulk DC ticket creation, Checking alerts that turned green, Burn-Test status update, to fetch incident(s) details, to find all INCs , INC Tasks, SR and SR Tasks open for host(s) - Used MongoDB schema for storing and retrieving security tokens. Used sqllite for creating logger. - Using GitHub for code versioning and confluence for documentation and project progress tracking Show less As System Administrator/Site Reliability Engineer for Apple client - Internet Service Organization(ISO) group - Management and Monitoring of more than 100k + linux servers in production and QA servers for various different verticals for Apple Inc. - Using Python for server end automation. - Using third party tools like smartctl , MegaCli, mdadm , hpacucli , hpasmcli to diagnose Disk issues , managing Hardware LSI RAIDs and Software RAIDs and checking integrated management logs. - Configuring servers from scratch using Kickstart/PXE Boot, and Puppet & Verdad for pushing configuration as per Apps team request. Maintaining the health of the server round the clock efficiently. - Using Ad-hoc utilities like iostat, netstat , top , sar ,free to collect information system activity and generate reports to observe Disk, CPU, Swap and network subsystems - Troubleshooting the issues pertaining to OS and system related issues that include CPU & Memory Usage, inode Usage, Volume Usage, NFS mount issues, Network latency, NTP Lagged Time, and Disk Usage. Show less As System Administrator/Site Reliability Engineer for Apple client - Internet Service Organization(ISO) group - Operate and troubleshooting issues in running systems, including booting into different run levels, identifying processes, and controlling services, DNS and DHCP issue, LDAP, SSH, HTTP,Package management, Puppet issues, Network issues, Drive/disk issues. - Maintaining storage using RAID(software and hardware) and LVM(logical volume manager) - Creating VIP's for various environments on request basis. - Working knowledge of Verdad and Puppet. - Performing initial investigation and resolution on third party provided storage systems such as Isilon, TMS,Filers and coordinating with the vendors for advanced support or replacements. - Monitoring the flow of data packets through the network. Tracing the errors / issues in the network path. Troubleshooting on Ethernet packet drops. - Patching and Kernel Upgrades for Labs and Prod Servers - Raise case with fusion-io team and implement the solution provided by them on Database hosts. Show less

  • IT Analyst

    Aug 2015 - Feb 2018

  • System Engineer

    Aug 2013 - Jul 2015

  • Assistant System Engineer

    Aug 2012 - Jul 2013

  • Assistant System Engineer - Trainee

    Aug 2011 - Jul 2012
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  Walmart Global Tech India

  Mar 2018 - now

  • Staff Software Engineer

    May 2024 - now

  • Senior Software Engineer

    Dec 2020 - May 2024

  • Software Engineer

    Mar 2018 - Dec 2020