Linux & Email System Support Administrator

Job Description –Linux & Email System Support Administrator
Experience
-3 to 6 Yrs
1.

Position Overview
We are looking for an experienced  Linux & Email System Support Engineer  to provide onsite support and maintenance for the client’s email infrastructure. The candidate will be responsible for Linux based email system monitoring, troubleshooting, OEM coordination, patching, backup support, and DC/DR activities.
2. Qualification &

Experience:

Graduate in  Engineering / IT / Computer Science  or equivalent qualification.
Minimum 3  years of experience  in Enterprise mailing systems or linux systems administration.
Good understanding of  Linux fundamentals and system administration .
Working knowledge of  enterprise email/open-source mailing systems  and related technologies.
Good understanding on email terminology and protocols such as:
SMTP
IMAP
POP/Fetch Mail
Mail Relay
Postfix
NDR/FDR
Mail Queue and Mail Flow
3.

Roles & Responsibilities :
A. Email System & Linux Administration
Maintain and support the existing  Netcore email solution  deployed at the client location.
Perform administration and maintenance of the Linux operating systems supporting the email infrastructure.
Maintain and troubleshoot all relevant  software and hardware components  of the email solution.
Monitor mail traffic, including  incoming/fetched and outgoing emails .
Monitor mail queues, delivery status, failures, NDRs, and other email-related issues.
Perform installation, configuration, reconfiguration, troubleshooting, restoration, and recovery of:
Operating systems
Mailing software
Licenses
Related infrastructure components
B. Incident & User Support
Attend and resolve incidents, service requests, and queries raised by users/client teams.
Provide timely responses and regular updates through  phone/email/ticketing systems .
Troubleshoot email delivery, connectivity, configuration, and system-related issues.
Ensure all incidents and service requests are handled within the defined  SLA requirements .
Maintain proper documentation of incidents, resolutions, and configuration changes.
C. OEM / Vendor Coordination
Coordinate with  Netcore and other OEM/vendor support teams  for troubleshooting and resolution of technical issues.
Raise and manage OEM/vendor support tickets and ensure timely closure.
Follow up on open tickets and escalate issues wherever required.
Coordinate with OEM engineers for:
Configuration changes
Software upgrades
Security patches
Bug fixes
Vulnerability remediation
Planned maintenance activities
D. DC / DR / FDR Support
Manage and maintain the email infrastructure deployed across  DC, DR, and FDR sites .
Participate in and execute  DC/DR drills  as per the client’s requirements and policies.
Support scheduled  half-yearly DR drills  and document the results.
Assist in restoration and recovery activities during DR exercises and actual incidents.
Ensure the required services and configurations are validated after DR activities.
E. Security, Patching & Hardening
Ensure operating systems and mailing software are appropriately  hardened and securely configured .
Apply the latest approved  OS patches, security updates, and application patches .
Coordinate with Netcore/OEM teams for security updates and fixes related to identified bugs and vulnerabilities.
Support remediation activities arising from  security audits and vulnerability assessments .
Ensure configuration and patching activities are properly documented.
F. Backup & Recovery
Assist in configuring and maintaining  system backups  as per client requirements.
Verify backup status and report backup failures or issues.
Support restoration and recovery of systems/data when required.
Participate in periodic backup and recovery validation activities.
4. Working Hours & Onsite Requirement:
Engineer will…