Job Title: Network Security Engineer Location: Pune Experience: 2 to 4 Years Job Summary We are looking for a motivated and technically skilled Network Security Engineer (L1/L2) with 2 to 4 years of experience in managing enterprise network and security infrastructure. The candidate will be responsible for day-to-day operations, administration, monitoring, maintenance, and troubleshooting of network, security, Wi-Fi, voice, and data infrastructure. The role requires hands-on experience with firewalls, switching technologies, web proxy solutions, and strong knowledge of networking fundamentals. Roles & Responsibilities • Manage day-to-day operations, administration, maintenance, and support of network and security infrastructure. • Monitor and maintain network stability, availability, and performance across LAN, WAN, Wi-Fi, and Voice environments. • Provide L1/L2 support for network incidents, service requests, and troubleshooting activities. • Configure, monitor, and troubleshoot Firewalls, Switches, Access Points, and VoIP infrastructure. • Support security policies, access controls, and network changes as per organizational standards. • Coordinate network and security maintenance activities and planned outages. • Work with internal teams and external vendors for installation, upgrades, and troubleshooting of network infrastructure. • Monitor network s and ensure timely incident resolution and escalation when required. • Perform routine health checks, upgrades, backups, and documentation of network devices. • Maintain and enforce operational processes, standards, and procedures. • Collaborate effectively with cross-functional teams while demonstrating the ability to work independently. • Ensure accurate documentation of network configurations, incidents, and change records. Required Technical Skills Firewall Management (L1/L2) • Hands-on experience with Firewall administration and troubleshooting. • Preferred experience with Fortinet FortiGate Firewalls. • Understanding of Security Policies, NAT, VPNs, IPS, and Firewall Rule Management. Switching & Network Management • Hands-on experience managing Cisco Switches. • Knowledge of VLANs, STP, Port Security, Trunking, and Layer 2/Layer 3 Switching. Web Proxy Management • Basic to intermediate experience with Zscaler Web Proxy. • Understanding of URL filtering, policy management, web traffic monitoring, and troubleshooting. Networking Fundamentals • Strong understanding of networking concepts and OSI Model. • Knowledge of TCP/IP, DNS, DHCP, Routing, Switching, WAN, LAN, WLAN, and VPN technologies. • Experience supporting Wi-Fi infrastructure and Access Points. Mandatory Requirements • 2 to 4 years of experience in Network Administration and Network Security Support. • Working experience with: • Firewalls (Fortinet preferred) • Cisco Switching • Wireless Networks (Access Points) • WAN/LAN Infrastructure • VoIP Technologies • Web Proxy Solutions (Zscaler preferred) • Strong troubleshooting and analytical skills. • Excellent communication and stakeholder management skills. • Ability to work independently and in a team environment. • Self-motivated with a positive attitude and customer-focused approach. Preferred Qualifications • CCNA Certification (Mandatory/Preferred) • Additional certifications in Fortinet (NSE/Fortinet Certified Professional), Cisco, or Zscaler will be an added advantage. • Experience with enterprise network monitoring tools is preferred.