Jul 2007 – May 2013 · 5 yrs 10 mos · On-site

• Collaborated on traffic management migration from Akamai to Yahoo’s proprietary DNS-based traffic management software for global load balancing, ensuring reliability, business continuity planning (BCP), and proximity optimization.
• Worked closely with NOC and international teams to resolve system and traffic management issues.
• Managed traffic using Akamai EdgeControl and Yahoo’s traffic management software.
• Developed and maintained a customized virtualization environment tailored for engineering requirements.
• Administered and maintained production environments for Red Hat Linux, Y! BSD, and Solaris servers, including production OS upgrades, configuration, troubleshooting, and file system tuning.
• Provided comprehensive user support for UNIX and network-based applications.
• Managed user accounts and IP addressing/allocation for production networks globally.
• Oversaw updates and management of Yahoo servers across worldwide infrastructure.
• Delivered system administration support for Yahoo properties (Mail, Messenger, Ads, Finance, etc.) within SLA agreements.
• Diagnosed and resolved production DNS and system outages/issues.
• Handled system administration, DNS, and infrastructure-related tickets (Siebel) as part of daily operations.
• Identified and reported system tool/TM bugs to developers for improved reliability and scalability.
• Participated in root cause analysis (RCA), outage analysis, and customer feedback reviews.
• Monitored server health using Nagios monitoring tools.
• Developed and maintained PERL scripts for operational needs.
• Contributed to new production infrastructure colocation setups to meet team-specific requirements.
• Provided production support during high-traffic special news events (e.g., Royal Weddings, celebrity-related events like Michael Jackson).

Aug 2006 – Jun 2007 · 10 mos

• Installation of latest patches for security bugs specific to YBSD
• Installation of YBSD and RHEL4
• Monitoring/fixing Dev Solaris 9 Servers
• Troubleshooting, maintaining the development centre/Staging environment
• Taking backup of systems prior to re installation of OS and regular updates using cron
• Maintaining file system, LVM and RAID, Drop Boxes
• Check performance /monitoring of boxes in randomly order.
• Supporting customized tools
• Planning knowledge transfer and trainings as per Project requirements
• Solving issues within SLA and attaining desired Targets as per SLA
• Troubleshooting network printer issues.
• Preparing Daily Report for Server Health Report and Analyze its Logs
• Manage Datacenter for Testing
• Manage Virtual Datacentre

Sep 2004 – Jun 2006 · 1 yr 9 mos

• Implemented Q-NET software and hardware troubleshooting on Windows 2000 environment with M.S.D.E.
• Troubleshot Windows 2000 server and Solaris Servers, reporting bugs on Q-NET software for clients like AL-RAJHI BANK and SAMBA.
• Collaborated with government ministries for system maintenance and enhancement.

Jan 2002 – Jan 2004 · 2 yrs · Bangalore · On-site

• Served as a System Administrator at Rittal India Ltd, deputed from HELP.COM (P) LTD.
• Provided on-call support to various multinational corporations (MNCs) as an On-Call Engineer.
• Administered and maintained NT Server, Windows 2000 Server, RSA Server, Citrix Server, Symantec Server, and Linux environments (Red Hat 8/9).
• Managed RF links and administered Samba servers (SWAT), backup servers, mail servers (WEBMIN), and Squid proxy servers.
• Monitored and tracked calls, managed processes, and provided remote user support.
• Performed user and group management tasks, including managing Tape Libraries for backup operations.
• Configured and maintained secure Samba shares for production users.
• Oversaw security privileges, log file analysis, and auditing for compliance and system integrity.
• Performed LAN cabling and networking of desktops to ensure stable connectivity.
• Collaborated with Tier-3 Linux support teams for escalations and advanced troubleshooting.