Chaitanya Kumar
Senior Administrator
Hyderabad
Summary
Seasoned Linux System Administrator with 10 years successfully managing diverse distros and multi-site installations. Proficient at streamlining all scales of system architecture, from single terminals to 2500 servers. Expert at maintaining smooth operation of Linux-based hardware installations with dynamic performance in environments relying upon diverse operating systems.
To seek and maintain full-time position that offers professional challenges utilizing interpersonal skills, excellent time management and problem-solving skills.
Overview
10
10
years of professional experience
6
6
years of post-secondary education
1
1
Certification
Work History
Senior Linux Administrator
Infosys Limited
Hyderabad
05.2022 - Current
- Working as Cloud Linux Administrator supporting 24/7, handling issues at Infra/Build Level.
- Created and serviced administrator and user accounts on Linux-based systems, managing deployments.
- Interacted directly with users to diagnose and correct major system issues and address concerns.
- Maintained smooth operation of multi-user systems through collaboration with hardware and network engineers.
- Preserved system documentation accuracy via regular data updates and graphical refreshes.
- Managed backup and disaster recovery through strict data control and retention policies, personally handling recovery tasks when issues arose.
- Resolved trouble tickets to reduce backlogs too.
- Resolved vulnerabilities by making improvements to network security.
- Planned and implemented upgrades to system hardware and software.
- Diagnosed and executed resolution for network and server issues.
- Maintained flexible schedule and responded to after-hours and weekend emergencies.
- Led server infrastructure development, quality assurance, staging and production systems.
- Resolved issues and escalated problems with knowledgeable support and quality service.
- Managing AWS Services and Deploying cloud infrastructure as per SOW.
- Create EBS volumes for storing application files to use EC2 instances when mounted.
- Create snapshot and Restore EC2 instances from snapshots.
Managing the AWS EC2 Linux instances and Knowledge on auto scaling. - Experience in Building servers, Installation and configurations from scratch on Linux.
- Maintain and resolving NFS File Sharing Issues
Creating Images, taking snapshots of VM and recreating the VM.
Installation/Upgrades & Configuration and Network Configuration, Firmware, OS Install on Linux servers. - Experience is handling Linux issues and SOP creation.
Mentoring and training the newbies.
Consultant
Diligent Global Pvt Ltd
02.2021 - 05.2022
- Working as Cloud Linux Administrator supporting 24/7, handling issues at Infra/Build Level.
- Managing AWS Services and Deploying cloud infrastructure as per SOW.
- Analyzed problematic areas to provide recommendations and solutions.
- Delivered outstanding service to clients to maintain and extend relationship for future business opportunities.
- Created and developed detailed work plans to meet business priorities and deadlines.
- Supported clients with business analysis, documentation and data modeling.
- Optimized customer experience by delivering superior services and effectively troubleshooting issues.
- Create EBS volumes for storing application files to use EC2 instances when mounted.
- Create snapshot and Restore EC2 instances from snapshots.
Managing the AWS EC2 Linux instances and Knowledge on auto scaling. - Experience in Building servers, Installation and configurations from scratch on Linux.
- Maintain and resolving NFS File Sharing Issues
Creating Images, taking snapshots of VM and recreating the VM.
Installation/Upgrades & Configuration and Network Configuration, Firmware, OS Install on Linux servers. - Experience is handling Linux issues and SOP creation.
- Mentoring and training the newbies.
Technology Analyst
Infosys Technology Ltd
09.2018 - 10.2020
- Working as Senior Linux Administrator supporting 24/7, handling issues at Infra/Build Level.
- Provided technical and functional recommendations based on project requirements.
- Create EBS volumes for storing application files to use EC2 instances when mounted
- Creating and adding new NICs on EC2 instance as per server owner request
- Create snapshot and Restore EC2 instances from snapshots
- Knowledge on auto scaling
- Provide resolution using AWS console and Physical systems on ILO
- Strong experience in Building servers, Installation and configurations from scratch
- Maintain and resolving NFS File Sharing Issues
- Creating Images, taking snapshots of VM and recreating the VM
- Installation/Upgrades & Configuration and Network Configuration, Firmware, OS Install
- Coordinating with Vendor in hardware changes, Memory and Disks
- Decommissioning servers
- Changing time zones as per customer requirements and coordinating with client
- Managing Bridge calls and Client Meetings
- LVM configuration and troubleshooting issues on LVM
- Provided RCA’s for critical outages
- Installation/Upgrades & Configuration of Linux Servers on VMware Hosts
- Hands on experience on configuring the V-Centers and VM’s
- Weekly Maintenance activities like Takedown and Validations
- Brainstormed with interdepartmental personnel to drive continuous technical improvements and also SOP creation and validations.
Associate System consultant
ITC Infotech Pvt Ltd
01.2017 - 06.2018
- Worked as Associate System consultant24/7 support, handling all issues at OS level is the nature of work
- Provide resolution using VM console access and Physical systems
- Support Windows, VMWARE and Linux and handle 29 clients across the globe
- Creating User, Resetting password, Deleting User
- Installing Lumension patch agent and troubleshooting installation issues
- Monitoring and troubleshooting high memory issues and increasing swap partition
- Coordinating with CPS compute team in hardware upgrades like CPU, Memory and Disks
- Updating OS patches and troubleshooting issues occurred during patching, Meetings with customers for Patch activities preparation and coordination with other respective teams i.e.; Backup TSM team and SAP Basis team and CPS Team
- Validating servers and creating named OS users at the time of handover
- Log Change and plan activities as a preventive correction measures which are identified by monitoring on daily basis
- Provide KT, training and mentor new team member.
System Administrator Consultant
NTT DATA
03.2016 - 12.2016
- Providing 24/7 support in Redhat Linux servers and its flavors
- Managed a team of 8 members as a SPOC and plan resource allocation
- Resolving the tickets on time as per the SLA
- Installing and configuring the Redhat Linux servers and troubleshooting
- Scheduling the Cron jobs, user creation, patching
- Creating the Logical volume manager (LVM), extending/reducing the LVM.
Senior Associate
Axa Technologies
04.2014 - 03.2016
- At Axa Technologies India and providing assistance on servers across UK and India
- Command centre works on Linux L1.5 operations
- Installation of various versions of Redhat, User and Group Administration
- Package Management using RPM and YUM
- Configuring YUM Server
- Creating and extending volume using LVM’s and managing them
- Troubleshooting network related and OS related errors
- Command centre deals with alerts such as SCOM, MOM, and ESX etc
- Based on the issue command centre resolves or escalates the issue to the next level of support by creating incidents in Cornerstone ticketing tool
- ROLE: Played a vital role of SPOC (Single point of Contact) & managed a team of 5 members in sorting out the design trend and leading ahead an innovative team to analyze the strategies and constraints
- Played an important role to maintain a healthy work environment.
IT Operations Analyst
Accenture
12.2012 - 10.2013
- Worked as an IT Operations Analyst and provided technical assistance to Stanford hospitals across America, Europe & Asia Pacific regions (Remote assistance)
- Job role includes in NT remote connectivity tools like Access Management Console
- ICA client configuration, management and User administration on Citrix
- Role includes troubleshooting and Resolving hardware/software matters pertaining to networking, connectivity issues, printers, servers, and applications to meet business needs of the client
- Troubleshooting, monitoring & managing Virtual private network (VPN) issues for the End users
- Categorize all incidents and preparing knowledge articles following ITIL best Practices
- Worked in handling Virtual environment
- Managing Disk File Systems, Server Performance, Users Creation and Granting file access Permissions.
Process Associate
Genpact
07.2011 - 12.2012
- Worked as Process Associate and provided technical assistance to GE across America, Europe & Asia Pacific regions
- Windows troubleshooting, monitoring & managing Virtual private network (VPN) issues for the End users
- Providing IT Support through WebEx application (Chat tools)
- Attending Bridge calls to troubleshoot the issue and make the resolution to the earliest
- (Chaitanya Kumar K)
Education
Bachelor of Science - Information Technology
HITS
Hyderabad 10.2007 - 05.2011
High School Diploma -
Sri Chaitanya Junior College
Hyderabad 05.2005 - 05.2007
Skills
Linux
VMware
Ansible
Windows
CI/CD
AWS
Certification
Redhat Certified Engineer (RHCSA & RHCE), Version RHEL 6 in 2013.
Timeline
Senior Linux Administrator
Infosys Limited
05.2022 - Current
Consultant
Diligent Global Pvt Ltd
02.2021 - 05.2022
Technology Analyst
Infosys Technology Ltd
09.2018 - 10.2020
Associate System consultant
ITC Infotech Pvt Ltd
01.2017 - 06.2018
System Administrator Consultant
NTT DATA
03.2016 - 12.2016
Senior Associate
Axa Technologies
04.2014 - 03.2016
IT Operations Analyst
Accenture
12.2012 - 10.2013
Process Associate
Genpact
07.2011 - 12.2012
Bachelor of Science - Information Technology
HITS
10.2007 - 05.2011
High School Diploma -
Sri Chaitanya Junior College
05.2005 - 05.2007