(JD)

IT Manager Network Administration & Security

Experience: 58 Years

Department: Information Technology

Job Type: Full time

Location: To be specified

1. Job Summary

We are looking for an experienced and technically proficient IT Manager Network Administration & Security to manage, maintain, and secure the organization's IT infrastructure, network systems, and email platforms.

The candidate should have strong hands-on experience in firewall configuration and management, managed switches, network troubleshooting, centralized antivirus/endpoint security solutions, and administration of Google Workspace and Microsoft 365 email environments.

The ideal candidate must be capable of independently handling day-to-day IT operations, implementing security policies, monitoring network performance, resolving technical issues, and ensuring the availability, reliability, and security of IT infrastructure across the organization.

2. Key Responsibilities

A. Network Administration & Infrastructure

- Configure, manage, and troubleshoot enterprise network infrastructure, including LAN, WAN, VLANs, routing, switching, Wi-Fi, and VPN connectivity.
- Administer and maintain managed switches, including VLAN configuration, trunking, port security, and access control.
- Monitor network performance, bandwidth utilization, connectivity, and availability.
- Troubleshoot network outages, connectivity issues, IP conflicts, DNS, DHCP, and routing problems.
- Maintain network diagrams, IP address records, configuration backups, and infrastructure documentation.
- Coordinate with ISPs, vendors, and service providers for network connectivity and issue resolution.

B. Firewall & Network Security

- Configure, administer, and maintain enterprise firewalls, including security policies, NAT, VPNs, access rules, and web filtering.
- Implement firewall rules to control internet access, application usage, unauthorized websites, and non-business-related services.
- Monitor firewall logs, security alerts, suspicious traffic, and potential threats.
- Implement and maintain network security policies, access controls, and secure remote connectivity.
- Review firewall configurations periodically and remove unnecessary or unauthorized access rules.
- Troubleshoot firewall-related connectivity and security incidents.

C. Centralized Antivirus & Endpoint Security

- Administer centralized antivirus and endpoint security solutions, including policy configuration and endpoint monitoring.
- Manage endpoint protection across desktops, laptops, and servers.
- Monitor antivirus status, security alerts, malware detections,



and endpoint compliance through a central management console.
- Ensure antivirus definitions, security agents, and endpoint protection policies remain updated.
- Investigate security incidents and coordinate containment, remediation, and recovery.
- Generate periodic endpoint security and compliance reports.

D. Google Workspace & Microsoft 365 Administration

- Administer Google Workspace and Microsoft 365 email environments.
- Manage user accounts, email IDs, groups, aliases, licenses, and access permissions.
- Configure and troubleshoot email delivery, DNS records, MX, SPF, DKIM, and DMARC.
- Implement email security policies, spam filtering, phishing protection, and anti-malware controls.
- Configure MFA, account security policies, and administrative access controls.
- Restrict unauthorized use of corporate email accounts and monitor security-related events.
- Manage email migration, mailbox configuration, and backup/retention requirements as applicable.
- Troubleshoot Outlook, Gmail, mobile email, and email synchronization issues.

E. IT Security & Access Management

- Implement and enforce IT security policies across the organization.
- Manage user access rights, administrator privileges, password policies, and multi-factor authentication.
- Identify and address vulnerabilities, unauthorized devices, and security risks.
- Support security audits, compliance checks, incident reporting, and remediation activities.
- Implement appropriate controls to prevent unauthorized data transfers and access to corporate resources.

F. IT Operations & Support

- Independently handle critical network, firewall, email, and endpoint security issues.
- Provide technical support for network connectivity, email access, and IT security incidents.
- Coordinate with internal teams and external vendors for troubleshooting and maintenance.
- Maintain IT asset records, network inventory, configuration backups, and technical documentation.
- Prepare periodic reports covering network availability, security incidents, antivirus compliance, and pending issues.
- Conduct preventive maintenance and recommend improvements to IT infrastructure.

3. Required Technical Skills

- Network Administration: LAN/WAN, TCP/IP, VLANs, routing, switching, DNS, DHCP, VPN, and Wi-Fi.




- Firewall Administration: Hands-on experience with enterprise firewall products such as Fortinet FortiGate, Sophos, SonicWall, or equivalent.
- Managed Switches: Configuration and troubleshooting of managed switches from vendors such as Cisco, Aruba, HPE, or equivalent.
- Endpoint Security: Experience with centralized antivirus/EDR solutions such as Kaspersky, Microsoft Defender, Sophos, or equivalent.
- Email Administration: Google Workspace and Microsoft 365 administration, including email security and user lifecycle management.
- Security Controls: MFA, access control, web filtering, email protection, and endpoint security policies.
- Monitoring & Documentation: Network monitoring, security log analysis, configuration backup, reporting, and incident management.

4. Qualifications & Experience

- Bachelor's degree in Computer Science, Information Technology, or a related discipline.
- 58 years of relevant hands-on experience in network administration, IT infrastructure, and information security.
- Demonstrated experience managing firewalls, managed switches, centralized antivirus, and corporate email platforms.
- Ability to independently troubleshoot complex technical issues and implement security controls.
- Relevant certifications such as CCNA, Fortinet NSE/FCP, Sophos, Microsoft, or Google Workspace are desirable.

5. Desired Candidate Profile

- Solid hands-on technical and troubleshooting capabilities.
- Able to work independently and take ownership of IT infrastructure and security operations.
- Good analytical, communication, documentation, and coordination skills.
- Proactive in identifying security risks and preventing recurring issues.
- Willing to support multiple offices or sites and travel when required.
- Capable of coordinating with management, vendors, and internal teams.

6. Key Performance Indicators (KPIs)

- Network and internet uptime and timely resolution of connectivity issues.
- Firewall policy compliance and timely closure of security alerts.
- Antivirus/endpoint protection coverage and compliance across all systems.
- Availability and security of Google Workspace and Microsoft 365 email services.
- Timely completion of IT maintenance, configuration backups, and documentation.
- Reduction in recurring IT incidents and unauthorized access attempts.
- Timely submission of IT infrastructure and security reports.

Note: The candidate must be technically hands-on and capable of independently managing network administration and security operations, rather than relying entirely on external vendors.

📌 IT Manager Network Administration & Security (Hyderabad)
🏢 RITHWIK PROJECTS PRIVATE
📍 Hyderabad