DEEPAK DASARI
HYDERABAD
Summary
Seasoned Linux SME with a proven track record at Tata Consultancy Services Ltd, adept in Linux RHEL6/7/8 and VMware. Excelled in enhancing system efficiencies and reducing redundancies through strategic Ansible automation and robust problem-solving. Demonstrates strong leadership in client engagements and technical innovation, ensuring high satisfaction and operational excellence.
Overview
13
13
years of professional experience
1
1
Certification
Work History
Linux SME
Tata Consultancy Services Ltd
HYDERABAD
04.2019 - Current
- Company Overview: Client: NBC Universal Media LLC LTD
- Understanding business requirements, studying existing application landscape and identifying redundant/ineffective systems.
- Installation, Maintenance and troubleshooting Linux Red Hat Enterprise Linux 6.x/7.x/8.X, and Windows operating systems.
- Ensure the day-to-day operations of the monitoring and reporting infrastructure, identifying any need for preventive or remedial maintenance such as fine-tuning and capacity planning.
- Installed and configured Oracle RAC for HA and fault tolerance in a clustered database environment.
- Configured ASM for managing disk groups, improving storage scalability, redundancy and performance.
- Built so many linux servers for various Applications and Databases as per requirement.
- Handling LVM (Logical Volume Manager) administration tasks, user management, RHEL/OEL manager administration, exposure to package management tools and security hardening.
- Working on Ansible playbooks for virtual and physical instance provisioning, configuration management, patching and software deployment.
- Provide/maintain interfaces between monitoring, reporting, service level management and asset management tools.
- Troubleshoot Network, Memory, CPU, SWAP and File system issues, TCP/IP, NFS, DNS, and SMTP issues.
- Work with Development teams to understand improvement, new features and enhancement requirements for the monitoring.
- Working in collaboration with Redhat/Microsoft Architect/SME’s to provide solutions/services and recommendations for application migration and modernization.
Sr.Linux Administrator
Infosys Ltd
HYDERABAD
05.2017 - 04.2019
- Company Overview: Client: Telstra
- Installation, Maintenance, administration and troubleshooting of Linux Red Hat Enterprise Linux6.x/7.x, and Windows operating systems
- Experienced servers Builds and decommission and keeping track.
- Worked on VMware ESXI 6.0, vCenter, RPM and YUM package installations, patch and other server management.
- Handling LVM related tasks, Creating, resizing LVM.
- Troubleshooting and configuring NFS ans CIFS mount points.
- Configure AppDynamics and Qualys Agents for Linux/Windows Servers to monitor the critical applications for system resource utilization (CPU, Memory, and Threads etc.) & heap size.
- Troubleshooting Network, Memory, CPU, swap and File system issues, TCP/IP, NFS, DNS, and SMTP in Linux.
- Developed Cron jobs and shell scripts for automating administration tasks and managing system routine backup, scheduling jobs.
- Troubleshoot and resolve technical and performance issues across multiple environments.
- Attending team meetings, change control meetings to update installation progress and upcoming changes in environment.
- Perform primary on call duties to manage alerts on pager duty and resolve issues.
Unix Administrator
ITSource Technologies Limited
HYDERABAD
04.2016 - 05.2017
- Company Overview: Client: Bank of Baroda Datacenter.
- As a system administrator, worked on Installation, Configuration, and OS upgrades of Red Hat Enterprise Linux6.x/7.x.
- Managing Cisco UCS C220 & C240 standalone servers and HP Hardware i.e Proliant, DL Series, ILO v3&v4.
- Hands on experience with server Hardware replacement/upgrade i.e HDD, RAM, PSU’s & CPU’s.
- Administering of VMware vSphere platform server environments with 3500+ virtual machines.
- Experienced in Volume Management by configuring LVM (Logical Volume Manager) to manage volume groups, logical and physical partitions for file system.
- Involved in Monitoring and Troubleshooting of Web servers, Load Balancers, and their related Database servers.
- Worked with different Bug/Ticketing tools like ServiceNow, in tracking the issues, workflows, pulling reports from dashboard.
- Created and wrote shell scripts (Bash)for automating tasks.
- Scheduled Jobs using CRONTAB Utility and wrote shell scripts to automate System Process.
- Creating and maintaining user accounts, profiles, security, rights, disk space and process monitoring.
- Responsible for Investigating and troubleshoot issues by determining root cause and remediate application, system, infrastructure issues.
Associate
HCL Infosystems Ltd
HYDERABAD
08.2014 - 05.2016
- Company Overview: Client: BSNL Datacenter
- Extensive experience in performing System Administration for Red Hat Enterprise Linux (RHEL) 5x/6x, Windows 2003/ 2008 servers.
- Managing Cisco UCS C220 & C240 standalone servers and HP Hardware i.e Proliant, DL Series, ILO v3&v4.
- Hands on experience with server Hardware replacement/upgrade i.e HDD, RAM, PSU’s & CPU’s
- Worked on configuration and administration of LVM as extending Logical Volume and Physical Volume Size.
- Install, configure, and maintain web servers like HTTP Web Server, Apache Web Server, and WebSphere Application Server on Red Hat Linux.
- Supporting web and application servers (Apache, Nginx, NodeJS, JBoss, Tomcat).
- Wrote shell scripts using languages like Bash, and Shell to automate day to day admin jobs.
- Setting up the server to send/receive mail using SendMail utility which uses the Simple Mail Transfer Protocol (SMTP).
- Schedule cron Tab jobs and used bash shell scripts to assist in automating various system administrator’s task.
- Working with a team to deliver the best outputs in given time frames.
System Administrator
Speck Systems Ltd
05.2012 - 07.2013
- As a system administrator, used to support Red Hat Enterprise Linux (5/6), servers
- Worked on VMware environment for creating VM's and troubleshooting using VMware ESXi and Oracle Virtual Box
- Creation of Logical volumes (LVM) for Red Hat Linux operating systems
- Experience in configuring, monitoring, and troubleshooting various file systems like Ext 3, Ext 2, UFS, NFS and JFS
- Configured yum repository server for installing packages from a centralized server
- Working on tools like Nagios to monitor services like CPU, Hard Drive, Memory, Users, HTTP and SSH etc
Education
ELECTRONICS & COMMUNICATION ENGINEERING
JNTU
Hyderabad, India05-2011
Skills
- Linux Distributions : RHEL/OEL 6/7/8;
- Shell Scripting: Bash
- System Administration Tasks: User and group management, file system management, system logging, system monitoring, performance tuning
- Networking: TCP/IP, network configuration, firewall management (iptables)
- Security: Access control, system hardening, vulnerability scanning, encryption
- Virtualization: VMware, KVM
- Configuration Management Tools: Ansible
- Database Management: MySQL, PostgreSQL, Oracle, Cassandra
- SIEM : Splunk ; Crowdstrike Falcon
- Vulnerability and Compliance : Qualys
- Web Services : Apache ; Tomcat
- Ticketing Tools : BMC (Blade Logic Management) ; Service Now
- Storage : NFS ; CIFS ; Samba
- AD Authentication : Likewise ; PBIS ; UNAB ; Centrifydc
- Backup : NetBackup
- Monitoring : M360 ; HP SIM ; OP5 ; Nagios
- Patch Management : Redhat Satellite; Spacewalk
Certification
- AZ 104 : Microsoft Certified: Azure Administrator Associate
- AZ 305 : Microsoft Azure Architect
Languages
Telugu
First Language
English
Proficient (C2)
C2
Hindi
Upper Intermediate (B2)
B2
Timeline
Linux SME
Tata Consultancy Services Ltd
04.2019 - Current
Sr.Linux Administrator
Infosys Ltd
05.2017 - 04.2019
Unix Administrator
ITSource Technologies Limited
04.2016 - 05.2017
Associate
HCL Infosystems Ltd
08.2014 - 05.2016
System Administrator
Speck Systems Ltd
05.2012 - 07.2013
ELECTRONICS & COMMUNICATION ENGINEERING
JNTU