Greeshma Santhosh - Linux server administrator

Summary

Dedicated and highly skilled Linux System Administrator with 3+ years of professional experience. Proficient in managing and administering Linux servers and workstations, ensuring optimal performance, security, and compliance. Experienced in providing technical support to end-users. Possess strong problem-solving and communication skills, enabling effective collaboration with cross-functional teams. Flexible, eager to acquire new skills and technologies. Familiar with DevOps principles and high availability service management.

Overview

3

years of professional experience

7

years of post-secondary education

7

Certifications

Work History

Linux server administrator

Poornam Infovisison (Bobcares)

11.2020 - 02.2024

Provided technical support and assistance to over 3000 customers with Linux hosting environments, troubleshooting issues and resolving queries promptly
Managed the daily operations of the technical support helpdesk using a ticketing system, ensuring timely resolution of customer concerns
Collaborated with NOC team to resolve server-related issues, ensuring high availability and optimal performance
Utilized SSH, RDP, and other tools to manage Linux servers, perform system setups, security hardening, and maintenance tasks
Investigated and resolved server security issues such as spamming incidents, and blacklist issues, ensuring the integrity and reputation of server IPs
Implemented security measures, such as firewall configurations (cpHulk, ModSecurity, IP Tables, Immunify 360) and regular updates, to safeguard servers from threats
Automated backup and recovery procedures for shared servers using R1 Software backup tool along with custom scripts
Orchestrated the migration of 500+ client websites, emails, and content to new hosting environments, ensuring zero downtime and improving load times by 25% across all platforms
Monitored server performance over 600 servers using tools like Nagios and performed routine maintenance tasks
Responded to support requests at a rate of 50+ tickets daily from end users and patiently walked individuals through basic troubleshooting tasks
Managed scanning of 1000+ websites for possible malware and vulnerabilities with further cleaning and updates
Created internal support documentation in Confluence that enabled technical support team to extend skills and leverage system features using best practices up to 50%
Maintained and configured over 600 shared hosting servers based on cPanel/WHM as well as basic services: DNS Clusters (Bind, PowerDNS), Exim/Postfix mail servers
SSL - generating, installing, renewing, AutoSSL and Digicert certificates for customer's websites or internal portals
Assisted with SSL installation over 1000 client sites.

Education

Bachelor of Computer Science and Engineering -

College of Engineering and Management Punnapra

01.2017 - 04.2020

Diploma in Computer Science and Engineering - undefined

Carmel Polytechnic College

01.2014 - 04.2017

SSLC - undefined

SNDPHSS Kuttamangalam

Skills

Operating systems: Linux (Redhat, CentOS, Debian, Almalinux)

Web hosting platforms: cPanel, CWP, plesk, SolidCP

Web servers: Apache and Nginx

Ticketing systems: WHMCS, Kayako

Monitoring Tools: Nagios

Backup and recovery: R1Soft

Shell scripting: Bash

Firewall management: cPhulk, IP Tables

Networking: DNS, IP, DNS zone files, OSI Model

Web Technologies: WordPress, Joomla, Laravel, PHP, HTML, HTTP, SQL

Troubleshooting: Assisted clients with troubleshooting their website or mail issues

SSL: Let's Encrypt, Digicert certificates

Email Management Software: Exim, Postfix

Database: MySQL, MSSQL

DevOps Principles

Cloud Platform: AWS

Certification

Cpanel Safe Admin

Passport

T5577161

Sex

Female

Timeline