RAHUL PANWAR
Gurgaon
Summary
Experienced and versatile Senior Linux System Administrator with over 9 years of expertise in system administration, server deployment, and infrastructure support. Skilled in managing complex Linux environments, e-Office platforms, mail servers, and database systems such as PostgreSQL, MySQL, and MongoDB. Proven ability to oversee server infrastructure, cloud deployments, and open-source tools while ensuring system security and performance. Adept at handling automation, scripting, and administrative tasks in enterprise IT environments.
Overview
9
9
years of professional experience
Work History
Sr. Administrator
RailTel Corporation of India, Orbit Techsol India Pvt. Ltd.
Gurugram
06.2023 - Current
- Led deployment, migration, and routine administration of the e-Office platform across various departments
- Configuration and integration of backend services such as PostgreSQL and MongoDB databases
- Application server setup using Apache Tomcat and reverse proxy management via NGINX
- Ensured high availability, security hardening, and regular backup procedures to maintain system integrity and performance
- Administered PostgreSQL, MySQL, and MongoDB databases, including backups and performance monitoring
- Installed and maintained Linux-based servers (RHEL, CentOS, Debian)
- Performed patch management, YUM repository setup, and network configuration
- Oversaw DNS, LDAP, IAM, and NAS configurations
- Zimbra Installation Migration configuration and Administration
- Managed full-cycle administration of Zimbra mail servers and user accounts
- Deployed monitoring tools (Nagios) and ensured secure system operations
- Automated recurring tasks and service deployments using Bash scripts and Ansible playbooks
Sr. Linux Admin
RailTel Corporation of India, Akiko Sherman Infotech
Gurugram
12.2022 - 06.2023
- Administer and maintain enterprise Red Hat and Windows servers for critical applications.
- Troubleshoot high-priority server issues and coordinate with network teams for resolution.
- Perform patching, upgrades, and DR drills in coordination with the IT operations team.
- Monitor server performance and generate weekly health reports.
- Manage escalations and coordinate with OEM vendors like Red Hat and Microsoft.
- Zimbra Mail Server Administration.
- Domino Mail Sever Administration.
- DNS configuration and Management.
- Basic OpenStack Administration.
- Linux Server Patching.
- Configuration of Nginx and Tomcat Based Applications.
- Installation and Management of Postgres/MySQL databases.
SENIOR SPECIALIST
HCL Technologies Ltd.
07.2021 - 12.2022
- HCL Domino Administration
- Administering and managing the servers with Red Hat 5, 6 & 7, Suse-12.5
- Server Patching
- Working as Cloud Administrator on Microsoft Azure, involved in configuring virtual machines, storage accounts, resource groups
- Deploy the Virtual Machines as per requirement to the customers
- Deploying Windows, Linux servers using Azure portal
- Creating NSGs and configuring the inbound and outbound rules
- Increasing the VM disk spaces when there are space issues
- Cleaning up the resources from Azure to not charge anything
Linux Admin/ Project Management Support Engineer
Railtel, Infocare Digital Systems Pvt. Ltd. and SISL Infotech Pvt Ltd.
06.2019 - 07.2021
- Administer and maintain enterprise Red Hat and Windows servers for critical applications.
- Troubleshoot high-priority server issues and coordinate with network teams for resolution.
- Perform patching, upgrades, and DR drills in coordination with the IT operations team.
- Monitor server performance and generate weekly health reports.
- Manage escalations and coordinate with OEM vendors like Red Hat and Microsoft.
- Zimbra Mail Server Administration.
- Domino Mail Sever Administration.
- DNS configuration and Management.
- Basic OpenStack Administration.
- Linux Server Patching.
- Configuration of Nginx and Tomcat Based Applications.
- Installation and Management of Postgres/MySQL databases.
Operation and Support Engineer
CSS Corp
12.2018 - 06.2019
- Manage users, groups, and file permissions.
- Perform basic network configuration (IP, hostname, DNS, routing).
- Schedule and monitor cron jobs and system tasks.
- Manage software packages using YUM/APT.
- Monitor disk usage, CPU, memory, and logs using standard CLI tools.
- Perform regular system updates and security patches.
Network Engineer
Javi Systems India Private Ltd.
11.2015 - 05.2018
- Understanding of network components such as routers, switches, firewalls, and modems.
- Knowledge of broadband infrastructure and last-mile connectivity using DSL technologies (ADSL, VDSL).
- Basic understanding of DSLAM (Digital Subscriber Line Access Multiplexer) – role in aggregating DSL lines and interfacing with ISP backbon
Education
BTech - ECE
UPTU
07-2015
Class 12 -
UP Board
06-2010
Class 10 -
UP Board
06-2007
Skills
- Linux OS Management
- Installation of Linux Servers
- User Management
- Filesystem Management
- Network Configurations
- LVM Management
- Database Administration
- MongoDB
- Postgres
- MySQL
- Ansible
- Shell Scripting
- Web Server Installation
- Web Server Configuration
- Zimbra Mail Server Installation
- Zimbra Mail Server Migration
- Zimbra Mail Server Management
- HCL Domino Mail Server Management
- Tren Micro Email Security Management
- OpenStack Administration
- E-Office Management
- DNS Configuration
- DNS Management
Hobbies and Interests
- Travel
- Sports (Cricket, Table Tennis)
Languages
- English
- Hindi
Personal Information
- Date of Birth: 02/15/93
- Nationality: Indian
Timeline
Sr. Administrator
RailTel Corporation of India, Orbit Techsol India Pvt. Ltd.
06.2023 - Current
Sr. Linux Admin
RailTel Corporation of India, Akiko Sherman Infotech
12.2022 - 06.2023
SENIOR SPECIALIST
HCL Technologies Ltd.
07.2021 - 12.2022
Linux Admin/ Project Management Support Engineer
Railtel, Infocare Digital Systems Pvt. Ltd. and SISL Infotech Pvt Ltd.
06.2019 - 07.2021
Operation and Support Engineer
CSS Corp
12.2018 - 06.2019
Network Engineer
Javi Systems India Private Ltd.
11.2015 - 05.2018
BTech - ECE
UPTU
Class 12 -
UP Board
Class 10 -
UP Board
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