Gajender Lingannapeta
Hyderabad
Summary
- Experienced Linux System Administrator on RHEL (6, 7, 8) and SUSE (15.5) Linux and Solaris 10 & 11 Available for 24/7 support in Production, Development, and UAT computing environments.
- Experienced Azure systems over 300+ and managing servers’ various applications.
- We manage over 2000+ types of Linux systems. These systems run various applications and databases, and we handle application and server management at all levels, including infrastructure. Good Experience in Various Applications and Databases Implementing configurations & Patching works, Maintenance and Troubleshooting of servers based on RHEL Linux, Monitoring, Entry/Midrange services.
- Experience in problem management, Root Cause Analysis and Change management for scheduling & implementing changes and solving SR Incidents in Production & non-production servers.
Bringing background in strategic thinking and problem-solving, I excel in understanding client needs and delivering tailored solutions. With strong communication skills, I build lasting relationships and ensure clear, effective collaboration. My adaptability and proactive approach enable me to navigate complex projects and drive successful outcomes. Versatile Independent Consultant with strong track record in delivering strategic solutions and driving business growth. Expert in project management, stakeholder engagement, and process optimisation. Proven ability to navigate complex challenges and implement cost-effective strategies that enhance operational efficiency. Consistently fosters collaborative environments, ensuring successful project outcomes and client satisfaction.
Overview
3
3
Languages
6
6
years of professional experience
Work History
Consultant Infrastructure Management
Infosys Limited
Hyderabad
08.2024 - 01.2026
- Involved in patching activities
- Working on Incidents and changes as well while doing these all TASK.
- Involved in various trouble shooting on server hang.
- Worked on Patching and troubleshooting when issue comes.
- Handled client calls on P1 and P2.
- Working as L2 admin. Team Consists Of 12 members.
- Involved from the scratch level for this project.
- Monitoring Tickets on severity bases and managing queues.
- Joining Bridge call and escalates appropriate levels on severity issues.
- Effective team player with an aptitude to learn and ability to prioritize, organize and accomplish multiple tasks, as part of a team or independently.
- Administering and fulfilling the user needs.
- Troubleshoot and analyze the performance of the servers (RHEL/SUSE) by analyzing the output from SAR, vmstat, iostat, topas, top, prstat commands and take necessary action based on the outputs.
- Checking Space availability for File System to increase or Create Volumes.
- Worked with File System includes Linux file System.
- Responsible for adding Swap space at run time.
- Vendor Interaction for Hardware Replacement or Root Cause Analysis (RCA).
- Uploading Crash Dump and SOS report output to Red-hat Site.
- Checking with customer for Down Time to Replace Hardware parts.
- Performing change event activities like patching and application changes
- Installation and Configuration VERITAS Cluster Server
- Configuration of LLT and GAB
- Creation and Configuration various VCS service groups
- Creation of all types of resources like disk group, volume, mount and other database, listener and application resources
- Failover and Switch over the service groups
- Converting normal disk into VXVM control again convert into normal disks. Group
- Converting disks into different formats.
- Creating different disk groups or adding disks to existing disk group.
- Creating volumes in different layouts.
- Modifying volumes attributes.
- Depend upon client request increasing the file systems.
- Replace Faulted Disk on VERITAS Volume Manager.
- Adding packages and patches on VERITAS environments.
Senior Administrator
Wipro Technologies
Hyderabad
05.2021 - 07.2024
- Handled client calls on P1 and P2.
- Working as L2 admin. Team Consists Of 21 members.
- Monitoring Tickets on severity bases and managing queues.
- Joining Bridge call and escalates appropriate levels on severity issues.
- Effective team player with an aptitude to learn and ability to prioritize, organize and accomplish multiple tasks, as part of a team or independently.
- Troubleshoot and analyze the performance of the servers (RHEL/SUSE) by analyzing the output from SAR, vmstat, iostat, topas, top, prstat commands and take necessary action based on the outputs.
- Checking Space availability for File System to increase or Create Volumes.
- Worked with File System includes Linux file System.
- Uploading Crash Dump and SOS report output to Red-hat Site.
- Worked on Azure systems and managing servers various applications.
- Handling servers and troubleshooting.
- Worked on Patching and troubleshooting when issue comes.
- Handled SUSE Linux Enterprise server (SLES) 12/15 environment for critical applications.
- Performed OS installation, configuration and patching using SUSE Manager.
- Managing storage using LVM, File systems and storage management.
- Configuration and maintained Network services (DNS, DHCP, NTP) and Firewall rules.
- High availability cluster (Pacemaker)
- Virtualization (VMware)
- Handled Solaris 10 Servers
- Clients: RMS, BW, National Grid, Daimler, UCQ and CIMIC.
Principal Infrastructure Engineer
Mphasis
Bangalore
08.2019 - 04.2021
- Linux HP, Dell hardware. Sun servers Sparck T series.
- Login the Data Center through vSphere Client.
- Taking snapshots before critical activity.
- Power on & off the VMs.
- Check the VM Console in case server not responded properly.
- Extend the disks as per the requirement.
- Extend the CPU & Memory as per the requirement.
- Build the new VM servers as per the requirement.
- Experience on V motion.
- Installation and Configuration VERITAS Cluster Server
- Configuration of LLT and GAB
- Creation and Configuration various VCS service groups
- Creation of all types of resources like disk group, volume, mount and other database, listener and application resources
- Failover and Switch over the service groups
- Converting normal disk into VXVM control again convert into normal disks. Group
- Converting disks into different formats.
- Creating different disk groups or adding disks to existing disk group.
- Creating volumes in different layouts.
- Modifying volumes attributes.
- Depend upon client request increasing the file systems.
- Replace Faulted Disk on VERITAS Volume Manager.
- Adding packages and patches on VERITAS environments.
- Worked with File System includes Linux file System.
- Responsible for adding Swap space at run time.
- Uploading Crash Dump and SOS report output to Red-hat Site.
- Checking with customer for Down Time to Replace Hardware parts.
- Performing change event activities like patching and application changes.
- Experienced in troubleshooting and resolving network issues related to the servers.
- Managing File systems and increasing Volumes up on request.
- Adding Storage Luns to LVM.
- Apply new RPMs depend upon the request and need.
- Managing the jobs with Cron and at command.
- User Management.
- Creating the link files.
- Client: DXC ( Deutsche Bank).
Education
BSc - Computers
Languages
English
Telugu
Hindi
Custom Section
Gajender. Lingannapeta
Disclaimer
I am very much Confident of my Skills to work in a Team. I hereby declare that the information furnished above is true to the best of my knowledge., Hyderabad, L. Gajender
Personal Information
Father's Name: Mr. L. Sathaiah
Timeline
Consultant Infrastructure Management
Infosys Limited
08.2024 - 01.2026
Senior Administrator
Wipro Technologies
05.2021 - 07.2024
Principal Infrastructure Engineer
Mphasis
08.2019 - 04.2021