Uma Chandran
Linux system Administrator
Mississauga,ON
Summary
Linux system administrator with 9+ years of experience designing and implementing a server infrastructure, datacenter operations and vulnerability management across Linux and Aix, physical and VMware platforms. Dedicated IT Professional with history of meeting company goals utilizing consistent and organized practices. Skilled in working under pressure and adapting to new situations and challenges to best enhance the organizational brand.
Overview
10
10
years of professional experience
1
1
Certification
Work History
Linux System Administrator
DXC Technologies, Zurich Farmers Insurance
Chennai, TamilNadu
07.2012 - 05.2022
- Technical Expertise
- Automated installations of OS using kickstart and ansible for RHEL 6.x/7.x/8.x
- Expertise in System Administration, Configuration, upgrade, migration, troubleshooting and Performance Tuning
- Excellent knowledge in vulnerability management and system security hardening
- Installation and upgradation of packages on RHEL servers using rpm, yum and managed packages through Redhat Satellite server
- Manage disks and file systems using LVM
- Strong knowledge on Incident management and Change management
- Installation and configuration of RedHat satellite across RHEL environment
- Create shell scripts as necessary to automate routine processes using cron
- Perform Disaster recovery using TBMR restore and SAN cloning
- Experience in VMware ESX infrastructure – configuration, vmotion and monitoring
- Experience in installation and management of network related services: DNS, LDAP,
- SAMBA, HTTPD, VSFTP, NFS, and Autofs
- Experience in working on DELL (Power Edge, Blade Servers), IBM Blade and VMware servers
- Knowledge on ticketing Tools – Service now, Remdey, ASK and Yantra
- Functional summary
- Tech Lead for Linux Infra support Team
- SPOC for Disaster Recovery, Patch Management and Server Migration
- Handling high severity issues/calls
- Managing and maintaining 2000+ servers located in different data centers, including physical and VM to minimize downtime and maintain a high level of availability
- Installed and updated packages on all the servers using rpm, yum and managed packages through Redhat satellite server
- Perform L2 – L3 technical support for simple and complex client environments as required
- CPU and memory upgrades on Linux servers as requested by client
- Work and resolve incident tickets within SLA
- Diagnose, troubleshoot and conduct root cause analysis in conjunction with the service team post-incident
- Provide 24/7 on-call support on a rotational basis
- Perform decommissioning of servers following specified procedures/guidelines.
- Installed system-wide hardware components, confirming interoperation and compatibility with Linux-based software distros.
- Managed backup and disaster recovery through strict data control and retention policies, personally handling recovery tasks when issues arose.
- Interacted directly with users to diagnose and correct major system issues and address concerns.
- Tuned system performance to optimize efficacy of new and existing hardware components.
- Resolved vulnerabilities by making improvements to network security.
- Maintained flexible schedule and responded to after-hours and weekend emergencies.
- Diagnosed and executed resolution for network and server issues.
Education
B.Tech - Information Technology
Bhajarang Engineering College, Anna University
Skills
- Flexible and Adaptable
- Self-Motivated
- Decision-Making
- Multitasking Abilities
- Excellent Communication
- Analytical and Critical Thinking
- Teamwork and Collaboration
Accomplishments
- Selected as the "Most Valuable Player" for patching for Q4 2021
- Certificate of appreciation for tiimely completion in security patching.
Certification
- Microsoft certified – Azure fundamentals (AZ-900) #: H981-1044
Work Availability
monday
tuesday
wednesday
thursday
friday
saturday
sunday
morning
afternoon
evening
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Quote
There is a powerful driving force inside every human being that, once unleashed, can make any vision, dream, or desire a reality.
Tony Robbins
Timeline
Linux System Administrator
DXC Technologies, Zurich Farmers Insurance
07.2012 - 05.2022
B.Tech - Information Technology
Bhajarang Engineering College, Anna University
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