Job Description – Email System Support Administrator
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.
Positive 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 be required to work onsite from Monday to Friday .
Regular working hours: 8:30 AM to 6:00 PM .
Engineer should be available beyond regular working hours for planned maintenance, upgrades, migrations, troubleshooting, or vendor coordination , whenever required.
The engineer may also be required to work on Saturdays/Sundays or other non-working days for activities such as:
DC/DR drills
Planned upgrades
Maintenance activities
Major configuration changes
OEM/vendor-supported activities
5. Key Skills Required:
Linux System Administration
Linux troubleshooting
Email/Mailing System Administration
SMTP / IMAP / POP / Mail Relay
Postfix
Mail flow and mail queue monitoring
Email troubleshooting
NDR/FDR handling
OS installation and configuration
OS patching and hardening
Backup and recovery
DC/DR operations
Incident and ticket management
OEM/vendor coordination
Good communication and customer-handling skills

Interested Candidates can share CV's to Email: [email protected]

📌 Email System Support Administrator (Mumbai)
🏢 SHI Solutions India
📍 Mumbai