I've administered production Linux infrastructure for Wipro, NTT India, Trigyn Technologies, Home Credit India, and CRIS, supporting RHEL, CentOS, Ubuntu, SUSE, Rocky Linux, and Oracle Linux environments.
I handle L3 escalations, server provisioning, kernel tuning, patching, upgrades, capacity management, security hardening, vulnerability remediation, DNS, networking, firewalls, and access controls. At CRIS, I supported a centralized Java, Oracle, and IBM WebSphere platform while managing SAN, LUN, LVM, Oracle backup, and datacenter operations.
I've also supported Apache, Nginx, Tomcat, WebLogic, Docker, Kubernetes, VMware vSphere, Oracle Database, SQL Server, MySQL, MariaDB, and PostgreSQL, and I use Bash and Ansible to automate infrastructure work.
