Assistant Manager / Deputy Manager - IT Security & Support

Job Description

Purpose of the Role We are looking for a technically proficient L2/L3 Support Engineer with in-depth knowledge of FortiGate firewall administration, LAN/WAN networking, Windows Server, Linux SMTP (CentOS), and Gmail/Google Workspace or any other email solution. The role involves supporting day-to-day IT operations, network/security troubleshooting, server/email management, and vendor coordination with Tata Communications and AWS. Key Responsibilities Firewall & Network Support (FortiGate | L2/L3): • Perform L2/L3 support for FortiGate firewall (rules, NAT, UTM, VPN, SD-WAN). • Manage FortiCloud portal, logs, and security posture. • Use Fortinet APIs for configuration backups, automation, and policy updates (L3). • Troubleshoot and maintain LAN/WAN connectivity, VLANs, switch port configurations, DHCP conflicts, and routing issues. • Implement and manage site-to-site and SSL VPNs (creation, monitoring, troubleshooting). Windows Server Support (L2/L3): • Manage Active Directory, DNS, DHCP, Group Policies, and user/group access control. • Perform regular patch management, updates, and monitoring of Windows servers (20122022). • Handle system errors, event log review, and escalate deeper issues to infra team as needed (L3 escalation if beyond routine maintenance). Email Administration (Gmail / SMTP / CentOS or others): • Provide L2 support for Gmail/Google Workspace, manage user accounts, groups, and aliases. • Manage SPF, DKIM, DMARC DNS records. • Support and monitor SMTP mail server on CentOS (e.g., Postfix/sendmail), including delivery issues, log review, and basic configuration changes. • Escalate mail queue or MTA-level issues to L3 or vendor when needed. Cloud & Vendor Liaison: • Coordinate with Tata Communications for MPLS, Leased Line, and Internet connectivity tickets. • Raise support requests and perform L2-level diagnostics for hosted AWS EC2/VPC issues (e.g., network/firewall/VPN). • Assist in VM provisioning, IP allocation, or VPN setup on AWS (with L3 supervision). Patching & Documentation: • Assist in patch rollouts (Windows & Linux) used internally. • Define / Update the SOP for Patch management • Document network topologies, firewall rules, server configurations, and troubleshooting steps. • Maintain change logs, ticket history, and support documentation. Key skills and competencies: • Bachelors degree in IT, Computer Science, or related field. • 68 years of experience in L2/L3 infrastructure support. • Fortinet NSE 4 or higher strongly preferred. • Microsoft Certified: Windows Server Admin (MCSA or equivalent preferred). • Linux experience (CentOS/RHEL) preferred. • Ability to work under pressure and resolve issues efficiently. • Excellent documentation, communication, and troubleshooting skills. • Self-motivated with a problem-solving attitude. Category Tools/Platforms Firewall FortiGate, FortiCloud, FortiAnalyzer (L2/L3) Networking LAN/WAN, DHCP, DNS, VLAN, NAT, VPN Servers Windows Server 20122022, AD, GPO,DNS Backup Windows Native / Vembu or other Email Gmail Admin, SPF/DKIM/DMARC, SMTP on CentOS Cloud AWS EC2, VPC, Security Groups, VPN (basic) Monitoring PRTG, Zabbix, FortiView, log analysis Scripting PowerShell (basic), Bash (basic preferred) Compliance: Should be compliant with ISO 27000 and ISO audit guidelines