Shivanath roy
@shivanathroy
Senior Linux Administrator and Azure infrastructure engineer with 12+ years securing and automating systems.
IndiaWhat I'm looking for
I’m a Senior Linux Administrator with 12+ years of experience managing RHEL infrastructure across physical servers, VMware virtual environments, and Microsoft Azure cloud platforms. I specialize in infrastructure management, system automation, security hardening, and keeping production systems highly available and high-performing.
In my current role, I administer LVM-based disk provisioning and volume expansion, configure Device Mapper multipathing for SAN storage, and manage resilient storage with Azure Managed Disks. I automate Linux patching using Ansible Tower and Azure Arc, maintain Bash scripts for administration and operations, and troubleshoot complex recovery scenarios involving root, boot, GRUB, and kernel issues.
I also strengthen reliability through HA clustering with Pacemaker and Corosync (RHEL/CentOS) and lead operations by coordinating L1/L2 support, handling escalations, and ensuring SLA compliance via clear stakeholder communication. Across my career, I’ve delivered RCA and incident documentation, supported OEM case resolution, and implemented BC/DR and secure Azure networking to protect uptime and data.
Experience
Work history, roles, and key accomplishments
Administered RHEL Linux infrastructure across on-prem servers, VMware, and Microsoft Azure; managed LVM disk provisioning and volume expansion. Coordinated L1/L2 operations, automated patching with Ansible Tower and Azure Arc, performed security hardening, and led complex troubleshooting/RCA to maintain SLA-compliant uptime.
Supported RHEL Linux infrastructure across on-prem physical servers, VMware, and Azure IaaS VMs, including Azure VM/disk provisioning and availability configuration. Implemented BCP/DR failover validation, managed LVM expansion, configured NIC bonding and Azure networking (VNets, subnets, NSGs), and produced incident analysis and RCA reports for change/release processes.
Deployed and administered RHEL/CentOS and Windows servers across data centers, managing 5,000+ servers and LVM-based storage. Troubleshot Linux OS issues, configured Yum/RHN, network bonding, NFS and RAID, and supported AWS services (EC2, EBS, S3, IAM, Auto Scaling, CloudWatch) while preparing RCA documents.
Installed and administered RHEL/CentOS and performed performance tuning and capacity planning for Linux and SAN storage. Built Red Hat Enterprise Linux HA clusters for seamless failover (cluster manager, lock management, fencing) and configured RAID to improve storage reliability and performance.
Installed and rebuilt Dell/IBM/HP servers, configuring hardware, peripherals, services, directories, and storage per vendor standards. Administered KVM and Red Hat clustering, implemented multipath and LVM disk management, managed NFS/NTP, handled monitoring alerts (CA Spectrum/eHealth), and authored RCA documents.
Customer Support Engineer
CMS Info Systems Ltd
Oct 2012 - Mar 2015 (2 years 5 months)
Supported and managed Windows and Linux servers, including Yum server setup, RPM packaging, and service administration (Apache, Squid, HTTP, DHCP, DNS, FTP, SSH). Logged and resolved incidents within SLA time, managed user permissions, and installed/maintained OS and supporting software according to organizational guidelines.
IT Executive
One Touch Solutions
May 2012 - Oct 2012 (5 months)
Installed, maintained, and troubleshot desktops, Outlook, and laptop-related issues. Performed installation, configuration, migration, and upgrades for desktop/PC/server software and peripherals, and supported user training.
Education
Degrees, certifications, and relevant coursework
School not specified
B.Tech in CSE, Computer Science Engineering
Completed a B.Tech in Computer Science Engineering (CSE), passed in 2011.
School not specified
Diploma in CSE, Computer Science Engineering
Completed a 3-year Diploma in Computer Science Engineering (CSE), passed in 2008.
School not specified
12th, Higher Secondary Education
Completed the 12th (higher secondary) level of education, passed in 2005.
School not specified
10th, Secondary Education
Completed the 10th level of education, passed in 2003.
Tech stack
Software and tools used professionally
Availability
Location
IndiaAuthorized to work in
Job categories
Skills
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