• Managed and maintained a fleet of Linux servers primarily RHEL servers, ensuring optimal performance and uptime.• Implemented and updated server configurations, installed latest patches and involved in server migration and decommission activities.• Utilized monitoring tools like Nagios to monitor server health, system performance, identifying and resolving issues promptly.• Investigated and troubleshooted system failures, application errors, and network connectivity problems, minimizing downtime and improving system reliability.• Managed user accounts and permissions using Active Directory, ensuring secure access to resources based on user roles.• Created Bash shell scripts to automate repetitive tasks, reducing manual intervention and increasing efficiency.• Coordinated and executed timely patch management across Linux server environments to address software vulnerabilities and maintain compliance with security standards.• Managed software packages using package managers like YUM and DNF, ensuring the installation and update of necessary software packages.• Resolved dependencies and conflicts to maintain a stable software environment.• Conducted system performance analysis using tools like top, iostat, vmstat and sar, identifying bottlenecks and optimizing system resources for better efficiency.• Tuned kernel parameters and memory settings to enhance system performance and responsiveness.• Provided guidance and training to junior team members, contributing to their professional growth and enhancing team expertise.• Maintained detailed documentation of procedures and troubleshooting steps for future reference and knowledge sharing within the team.

Linux System Administration

Linux System Administration

Linux System Administration

• Assist in monitoring server health and system logs to identify issues and ensure smooth operations.• Report abnormalities to senior administrators for further investigation.• Support user account creation, modification, and deletion, adhering to company access control standards.• Assist with granting and revoking sudo permissions.• Help troubleshoot system errors and application issues under the guidance of senior administrators.• Participate in incident response efforts to resolve technical problems and restore services.• Assist in the execution of backup procedures to ensure data protection and disaster recovery capabilities.• Support the installation and updates of software packages using package managers, following predefined procedures and under supervision.• Involved in documenting troubleshooting steps and solutions for future reference.• Assist in applying security patches to the servers to meet security standards.• Learn and contribute to simple scripting tasks using shell scripts (Bash) to automate routine tasks.• Coordinated with hardware vendor in replacing faulty components in physical servers.• Continuously learn new Linux concepts and best practices to grow technical expertise.• Adapt to changing IT environments and be receptive to feedback for skill improvement.

Generic & Stream Training (NOS)1. Python:• Understanding of Python syntax, data types, variables, and control structures.• Knowledge of object-oriented programming (OOP) concepts and how to implement them in Python.• Understanding of data structures like lists, dictionaries, tuples, and sets in Python.• Knowledge of Python's standard library and its built-in functions for various tasks.• Skills in writing Python scripts for automating repetitive tasks and enhancing productivity.2. SQL (Structured Query Language):• Proficiency in writing SQL queries to retrieve, insert, update, and delete data from relational databases.• Understanding of different database management systems (DBMS) and their features.• Knowledge of table creation, schema design, and data normalization principles.• Familiarity with data manipulation using SQL statements like GROUP BY, HAVING, and ORDER BY.3. Networking:• Understanding of networking fundamentals, including the OSI model and TCP/IP protocol suite.• Knowledge of IP addressing, subnetting, and network classes.• Familiarity with different network topologies and their advantages/disadvantages.• Understanding of network services such as DNS, DHCP, FTP, and HTTP.• Experience with network troubleshooting and diagnostics using tools like ping, traceroute.4. Ansible Basics:• Understanding of Ansible's architecture and components, including Ansible Control Node and Managed Nodes.• Knowledge of YAML, which is used for writing Ansible playbooks and configuration files.• Skills in automating repetitive tasks like software installation, package updates, and system configuration using Ansible playbooks.• Ability to define desired system state and implement it across multiple servers consistently.• Knowledge in writing Ansible playbooks, which are used to define automation tasks and configurations.• Ability to manage Ansible inventory, which defines the hosts on which Ansible should operate.