Sainath Reddy Marunganti
Dubai
Summary
I am looking forward to associate my self with an organization where is an opportunity to share, contribute and upgrade my knowledge for development of self and organization served.
Diversely skilled Technical Engineer with 20+ years helping businesses maintain smooth operations and optimal workflow. Driven to enhance functionality through careful and economical application of technical enhancements. Talented at deriving maximum value from existing assets as well as knowing when cost-effective upgrades reach peak return on investment (ROI).
Overview
18
18
years of professional experience
1
1
Certification
Work History
Senior Technical Engineer
Emirates Airlines
09.2022 - Current
- Provided end-to-end data center support for RHEL, Solaris, AIX, and VMware server environments.
- Designed, developed, and executed Ansible playbooks for configuration management, automation, and OS upgrades.
- Led migration of on-premise servers to Linux VMs and AWS EC2 instances, ensuring minimal downtime and compliance.
- Handled BAU and build activities for Linux, Solaris, and AIX servers, including provisioning, configuration, and troubleshooting.
- Implemented infrastructure automation using Ansible to improve efficiency and reduce manual intervention.
- Maintained security standards, including VAPT remediation and OS security hardening in line with organizational policies.
- Conducted POCs for new software installations, evaluating compatibility, performance, and security impacts.
- Managed end-to-end project delivery, coordinating with cross-functional teams and stakeholders.
- Implemented access and security controls using Red Hat Identity Management (IPA).
- Performed custom patching and package management using Red Hat Satellite servers and Capsules across public and private cloud environments.
- Executed OS upgrades and migrations, including RHEL 7 to RHEL 8 and RHEL 8 to RHEL 9, leveraging automation for consistency and speed.
- Installed, integrated, and managed endpoint security tools such as Microsoft Defender ATP (MDATP) and Trend Micro, including regular security scans and compliance checks.
- Supported audit activities for Operating Systems and middleware platforms such as JBoss and Oracle WebLogic.
- Managed BAU operations for Operating Systems and Veritas Cluster environments, ensuring high availability and stability.
Systems Analyst
CPF Board & Zenith Infotech PTE LTD
08.2015 - 08.2022
- Managing Cloud infrastructure in AWS and perform administration activities in preprod Environment.
- Perform and manage daily and nightly scheduled and unscheduled builds and co-ordinate with dev teams for any build failures.
- Experience in using AWS, Ansible Tower for OS/Application patching & Deployments
- Management of project from Scratch. Reutilized existing Linux/Solaris/Windows Based Infrastructure to develop Agile Development Farm based on JBOSS & Websphere Virtual Machines and Docker Containers.
- Management of Incident/Problem/Change process as per the ITIL Process.
- Represent the first stage of escalation for Incidents, should these not be resolvable within the agreed Service Levels
- Responsible for the effective implementation of the process "Service Desk and Incident Management" and carries out the respective reporting procedure.
- Completed End to End DATA CENTER SUPPORT.
- Review and provide the approval regarding the priority of the change request (Minor, Medium or Major).
- Reviewing solution propagation activities approving the results of root cause analysis (RCA). This includes the documented root cause (or the decision that such could not be found) and the documented workaround.
- Reviews solution options and/or temporary solution Approves analysis results.
- Sound knowledge on ANSIBLE PLAYBOOK CREATION AND EXECUTION
- Configured the IPS repo server to help automate the Solaris Live Upgraded patching.
- Patching through live upgrade on Solaris 10 , 11 with the help of IPS Repo servers.
- Management of Satellite Servers and making sure the Linux Patching is completed .
- Disaster recovery and Business Continuity design, planning and testing.
- Working closely with respective Application/DB team to understand the build requirements followed by helping them with build suggestion
- Management of VCenter help build new server or upgrades.
- Project Planning and execution along with Capacity review for servers.
- Configuration of IPS repo server and Scheduling auto patching for Multiple versions of OS.
- Migration of Solaris servers to Linux VM's/AWS EC2 Machines
- BAU and Build activity of Linux servers ( Redhat & OEL )
- Firmware upgrade in T3’s,T4’s,T7-1,T5220,T5240 & M Series of servers.
- Scheduling regular hardware health check in Data Center as a preventive measure.
- Participating in DR Exercises to help test the optimum availability during the unforeseen circumstances of outages.
- Design, Deploy and maintain enterprise class security, network and systems management applications within an AWS environment & GCC ( Singapore Government Cloud)
Sr Systems Engineer
Tech Mahindra
01.2014 - 08.2015
- Administering and managing the servers with Solaris 8,9 and 10 OS versions & Redhat/Oracle Linux on different hardware platforms.
- Completed Solaris/linux Server reinstall/rebuild/reconfigure Using Jumpstart/Kickstart.
- Working on Incidents, Changes & Problem dockets on daily basis.
- Handling work environment of more then 12K servers in different OS versions.
- Supporting the implementation of corrective actions Apply Information Technology Infrastructure Library (ITIL) framework knowledge.
- Reviewing solution propagation activities approving the results of root cause analysis (RCA).This includes the documented root cause (or the decision that such could not be found) and the documented workaround.
- Convenes urgent CAB or ECAB meetings for all urgent RFCs Chairing of CAB & ECAB meetings.
- Issuing of agenda and circulating to all CAB members in advance of meeting.
- Configuring and Administration of Solaris Zones/Ldoms & handling kernel patching activity in through live upgrade.
- Handling hardware replacements like Faulty disk, HBA cards, Faulty DIMM replacements and Memory Upgradations, Board Swapping, OS Upgradations, on different hardware platforms for solaris and linux.
- File systems creation, increase & maintenance for LVM.
- Configure, install and maintain all hardware including, but not limited to clustered, stand alone servers, blade servers, running VMware, and storage solutions including, RAID, and SAN technology
- Storage Foundation – SF/SFHA/SFRAC – Upgrade from 4.0/4.1 to 5.0/5.1/6.0 for more than 1000 servers.
- Solaris OS upgrade Using Live Upgrade, for more than 1000 servers including Veritas Cluster servers.
- Handling hardware issues and their replacements remotely.
- Installation and Upgradation of Package and Patch Administration.
- Configuring zones (solaris 10) and resource management with containers, ZFS, zpools.
- Configuring LDOMS and resource mgmt between guest domains.
- Knowledge acquisitions, Knowledge transfer, build and nurture competencies with in the team.
- Providing support for Storage Administration for SAN and NAS.
Unix System Admin
IBM India Pvt. Ltd.
08.2007 - 11.2013
- Administering and managing the servers with Solaris 8,9 and 10 OS versions on different hardware platforms.
- Adding Packages and Patches as per the requirement of projects and security needs. (Patch Management) on Zones ( Physical & virtual servers )
- Install applicable patches and third party software on Sun Servers.
- Modify firmware settings prior to booting at Open Boot PROM level.
- Add, modify, and delete user/group accounts and set up a user’s work environment.
- Controlling the System Logging services, and examining system Log Files of all system events.
- Management of Incident/Problem/Change process as per the ITIL Process.
- Undertaking research for the root-causes of Incidents and thus ensures the enduring elimination of interruptions.
- Examines work queues for problems in jeopardy of missing service Agreements.
- Issuing of agenda and circulating to all CAB members in advance of meeting.
- Co ordinate cross department communications when required to assist in resolution of Incidents/ Problem/ Changes.
- OS upgrade from previous version to new version.
- Scheduling of automatic, repetitive Jobs using commands with Crontab.
- Monitoring System Performance of Virtual memory, System events, Swapping, Disk utilization, CPU utilization by running scripts.
- Performed Growing & shrinking the volumes using UFS
- Monitoring the progress of Netbackup jobs and save the job information.
- Provide customer consulting services in the area of data backup by providing regular communication to the customer on the project status.
- Manage hardware maintenance levels and firmware levels and perform upgrades when necessary.
- Provide technical assistance to other team members by way of assisting them in solving technical problems, sharing regular technical knowledge and adhering to quality processes in ensuring team objectives be met.
- Provisioning External Storage either from SAN or NAS to the server. Troubleshooting Solaris Volume Manager Issues.(disk failures,meta database corruption etc)
- SAN and NAS Luns Decommissioning at the server.
- Creating SVM Objects and Managing Unix File Systems
- Configuring and Administration of Solaris Zones/Ldoms and handling kernel patching activity in UFS, ZFS.
- Knowledge on Solaris Live Upgrade.
- Some of the Performed Changes are Storage Augmentation, Storage De-commission, extending Existing File Systems , Hardware faults like Faulty disk, HBA cards, Faulty DIMM replacements and Memory Upgradations, Board Swapping, OS Upgradations, creating new file systems on newly provisioned LUN’s.
- Logging and following up cases with Vendors.
- Adding Service Groups ( SG ) in VCS.
- Configuration of Zones and Ldoms in UFS & ZFS.
Education
Business Administration in Information Technology - MBA-IT
Sikkim Manipal University
Manipal05.2010
Bachelor of Commerce and Computers - B.Com Computers
New Science Degree College
Hyderabad05.2005
Skills
- Cloud Platform : AWS,Azure
- DevOps tools : Ansible,Docker
- Operating System: Solaris 10/11, Redhat 6,7,8 , OEL 6,7,8
- Virtualization: VMware , Solaris Zones/Containers and LDOMS , Linux KVM
- Service Desk Tools: Service Now, BMC Remedy
- Middleware: WebLogic , Apache, Jboss
- Others: RHEL Open stack, Oracle Enterprise Manager
- Storage : EMC DMX&V-MAX , Hitachi
Accomplishments
- Started as a fresher in server admin and became one of the Key Member in Team and also took up the role of the Team Leader.
- Awarded beast employee of the month multiple time along with IBM Client recognition award
- Awarded best employee of the month.
- Got best Customer Satisfaction report for six months
Certification
- Aws certified Solutions Architect Associate
- Aws certified Solutions Architect Professional
- Unix Sun Certified System Administrator for the Solaris
- ITIL
Languages known
Telugu, English and Hindi
Timeline
Senior Technical Engineer
Emirates Airlines
09.2022 - Current
Systems Analyst
CPF Board & Zenith Infotech PTE LTD
08.2015 - 08.2022
Sr Systems Engineer
Tech Mahindra
01.2014 - 08.2015
Unix System Admin
IBM India Pvt. Ltd.
08.2007 - 11.2013
Business Administration in Information Technology - MBA-IT
Sikkim Manipal University
Bachelor of Commerce and Computers - B.Com Computers
New Science Degree College