Krishnaramanan S

Experience

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  Mascon Global Ltd

  Mar 2010 - Jan 2011

  Senior System Administrator

  Managed Windows Operating Systems and resolved hardware issues on servers. Responsibilities:- Directed Windows Operating System administration tasks.- Troubleshot hardware problems on servers.- Implemented solutions to optimize server performance.Achievements:- Reduced server downtime by 20% through proactive troubleshooting.- Enhanced overall server efficiency by 15% by implementing new optimization strategies.

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  Getronics

  Feb 2011 - Aug 2015

  Senior System Engineer

  Directed L2 support as a Windows Server Operations engineer overseeing 4000+ Windows servers. Managed and resolved hardware issues for HP & IBM servers, played a key role in disaster recovery testing by verifying application failover and failback procedures according to DR plans. Monitored production servers, ensuring optimal performance, uptime, and availability by analyzing event logs, utilizing Sysinternals Tools for server performance evaluation, and collecting metrics for analysis.Responsibilities:- Oversaw 4000+ Windows servers- Managed hardware issues for HP & IBM servers- Led disaster recovery testing for application failover- Monitored production server performance and uptime- Analyzed event logs and server performance using Sysinternals ToolsAchievements:- Improved server uptime by X% through proactive monitoring- Reduced average response time for hardware issues by Y%- Successfully verified and executed DR plan with zero system downtime Show less

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  TATA Communication Ltd

  Jan 2016 - Jul 2016

  Windows Server Administrator - L2

  Responsibilities:Server Support and Virtualization: Provided comprehensive support for Windows Server environments, specifically Windows Server 2008 R2, 2012 R2, and 2016. Responsibilities included troubleshooting, performance tuning, and regular maintenance to ensure smooth operation. Worked extensively with Hyper-V and VMware VC (vCenter), managing virtual machines and hosts, optimizing resource allocation, and ensuring robust virtualization. This expertise facilitated efficient server management, reduced hardware costs, and improved scalability and flexibility of IT resources.Load Balancing and High Availability Management: Managed F5 load balancing, ensuring optimal distribution of network traffic across multiple servers to enhance performance and reliability. Implemented and maintained Windows Failover Clustering and load balancing clustering services, providing high availability and fault tolerance for critical applications and services. This involved configuring and monitoring cluster nodes, ensuring seamless failover and load distribution.Memory Dump Analysis and Performance Optimization: Conducted in-depth memory dump analysis and performance count retrieval to diagnose and resolve complex system issues. Utilized the PAL (Performance Analysis of Logs) Tool to perform detailed dump analysis, identifying root causes of unexpected Windows reboots and server inaccessibility. This proactive approach ensured system stability and minimized downtime.Problem-Solving and Technical Expertise: Demonstrated strong problem-solving skills by identifying and resolving critical system issues promptly. Collaborated with cross-functional teams to develop and implement effective solutions, enhancing overall system performance and reliability. Maintained up-to-date knowledge of the latest technologies and best practices in system administration, load balancing, and virtualization, ensuring continuous improvement and innovation in IT operations. Show less

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  Tech Mahindra Ltd

  Aug 2016 - now

  Technical Lead

  Directed the supervision of high end technical support for nearly 7,000 Windows servers (Physical & Virtual) globally, ensuring minimal downtime and optimal performance. Led strategic initiatives in Incident Management, Change Management, Problem Management, Capacity Management, Patch Management, Operating System deployments, Software Deployment, and Security Implementations to enhance server network efficiency and security. Managed dedicated servers such as Application Servers, Proxy Servers, Mail Servers, Web Servers, overseeing Application & Database Server Disaster Recovery (DR), and Business continuity planning (BCP). Responsibilities:- Supervising high-end technical support for 7,000 Windows servers globally- Leading Incident Management, Change Management, Problem Management, Capacity Management, Patch Management- Managing dedicated servers like Application Servers, Proxy Servers, Mail ServersAchievements:- Enhanced server network efficiency and security through strategic initiatives- Successfully oversaw Application & Database Server Disaster Recovery (DR) and Business continuity planning (BCP) effortsTech-stack: - Windows Server - Incident Management Tools - Change Management Tools - Security Implementation Tools Show less