Raghunandan Keluskar
Mumbai
Summary
Have 7 years of total IT infrastructure experience, skilled and motivated Linux Administrator with 4.5 years of hands-on experience in managing and maintaining Linux-based systems. Proficient in deploying, configuring, and troubleshooting various Linux distributions, including RHEL, CentOS, and Ubuntu. Excellent problem-solving skills with a proactive approach to identifying and resolving technical issues. Strong communication and teamwork abilities, committed to delivering high-quality support and enhancing system operations.
Overview
7
7
years of professional experience
Work History
Senior Technical Analyst
Hexaware Technologies
Mumbai
03.2022 - Current
- Worked as a System engineer in Linux team and providing L1 and L2 support for linux environment.
- Support and administer LINUX servers and related hardware and software systems to ensure the high availability of client/server applications on these systems
- Working on after monitoring alerts on resourse utilization such as Disk space utilization, CPU utilization, Memory utilization for Linux servers
- Support users in a timely manner and ensure daily operational tasks are performed efficiently
- Managed user accounts, groups, and permissions on LINUX systems
- Maintaining scheduled jobs through CRON
- Working on Server upgradation(RHEL 7 to RHEL 8)
- Manage backup for Linux servers as per user requests
- Using LVM for dynamically creating, extending partition sizes as per customers requirement
- Troubleshooting the issues related to Performance of OS
- Applied OS patches and updates to maintain system security and stability
- Resolving incident, change, problem management, user generate requests and queries'
- Conducting daily meetings with teams to discuss ongoing issues and documenting the same
- Documented procedures and configurations for reference and knowledge sharing.
System Administrator
Monalisa EDC Pvt ltd
09.2021 - 02.2022
- Involved in daily incident management and resolved the day-to-day problems raised by the users
- Day to day monitoring of system logs, user usage of system resources, CPU and memory utilization
- Managing patching and server hardening
- Performed troubleshooting existing users accounts
- Health checkup of Linux Servers
- Troubleshooting the issues related to Performance of OS
- Management of NFS server/client between LINUX servers
- Creation of Symlink and Hardlink
- File copy from one host to another using SCP
- Server performance and Monitoring
- Backing up Server data using Zip, tar, gzip, rsync
- Worked of vi Linux editor.
Senior System Engineer
Aspire Nxt Pvt Ltd.
01.2020 - 09.2021
- Worked as Linux L1 Support Engineer and Supported the Producation environment for L1 related issues
- Managing and maintaining a data center with 50 Linux servers
- Monitor and check network connectivity and work with network and dc team to resolve any issues in network, server at user end
- Servers Installation (RHEL 6, ubantu)
- Monitoring logs and alerts & Health checkup of Linux Servers
- Installing packages through RPM, YUM
- Setting up new accounts and password reset
- Health checkup of Linux Servers
- Working with ticketing tool(SNOW) and escalate to L2 team if not resolved
- Performances Monitoring and Managing the Linux servers
- Creates, changes, and deletes user accounts per request
- Monitoring of logs and alerts
- Creating ticket and escalate to concern team.
System Associate
Reliance Retail
12.2018 - 01.2020
- Log and prioritize service desk tickets, ensuring timely resolution and adherence to service level agreements (SLAs)
- Offered technical support to end-users, resolving hardware and software issues
- Assisted in the setup and maintenance of desktops, laptops, and peripherals
- Responded to service requests and provided guidance on IT-related concerns
- Contributed to the development and maintenance of IT documentation
- Mentored junior IT staff and conducted training sessions on IT best practices.
IT Engineer
TEAMWORK SYSTEM AND SOLUTIONS PVT LTD
02.2017 - 12.2018
- Assist in the setup and maintenance of desktops, laptops, and peripherals
- Provided support for email systems, printers, and other IT peripherals
- Diagnose and troubleshoot technical issues remotely and escalate to higher tiers when necessary
- Windows Installations (7, 8,10)
- Assembling Computer and Maintaining Company peripheral Desktop, and Network device
- Performs general Preventive and Maintainance Tasks on Computer, Laptop and Printers.
Education
Graduation, B.Sc( Computers ) -
National College of Education, Davanagere
01.2022
Computer Engineering Technology
Maharashtra State Board of Technical Education
Maharashtra 01.2017
Skills
- OS Administration (RHEL / CentOS/ Ubuntu):Installation Configuration Troubleshooting
- Users Profiles And Group Management
- File Permission Management
- LVM Management
- Patch Management
- Process Management
- Task Scheduler - CRONTAB
- Backup And Recovery- FTP NFS Rsync
- Filesystem Management
- Networking: TCP/IP DNS DHCP
- Virtualization: VMware
- Server Monitoring -Nagios
- Cloud Support (AWS) : EC2 ,SNS, CloudWatch,IAM
- Ticketing tool- ServiceNow ,EverstPortalNewrelic
Coursescertifications
- 3 Year Diploma In Computer Engineering
- AI Fundamentals Certification (Artificial Intelligence A- 2023 Build 5 AI(Incl.ChatGPT))
- Certification Of Completion: AI-Level-1Foundation(ChatGPT4 And More)
- Linux Administration Course From PLOWITECH Institute
Personal Information
- Total Experience: 7 Years -IT infrastructure (Linux Admin-4 years)
- Date of Birth: 06/27/96
- Gender: Male
- Marital Status: Single / Unmarried
Projects
PRJ-9378-vontier_infra and Digital _FPP_IMS_M&C, 31 Days, Worked as System support engineer to handling L1 and L2 related Linux servers issue. managing EMEA sites(UK, Sweden, South Africa, Germany, Italy, Finland, Denmark). Responsible for support for 500+ Linux servers.
Accomplishments
- Best Support engineer at Reliance -2019
- Best team member at Hexaware technologies-2022
Languages
English
First Language
English
Advanced (C1)
C1
Timeline
Senior Technical Analyst
Hexaware Technologies
03.2022 - Current
System Administrator
Monalisa EDC Pvt ltd
09.2021 - 02.2022
Senior System Engineer
Aspire Nxt Pvt Ltd.
01.2020 - 09.2021
System Associate
Reliance Retail
12.2018 - 01.2020
IT Engineer
TEAMWORK SYSTEM AND SOLUTIONS PVT LTD
02.2017 - 12.2018
Graduation, B.Sc( Computers ) -
National College of Education, Davanagere
Computer Engineering Technology
Maharashtra State Board of Technical Education
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