Network Security Engineer

Job Summary We are seeking an experienced Network Security Engineer to manage, maintain, secure, and optimize the organization's network security infrastructure. The role is responsible for the administration and operation of enterprise firewalls, load balancers, network infrastructure, VPN solutions, and security technologies, ensuring high availability, performance, and protection against cyber threats. Key Responsibilities1. Firewall Management & Security Manage, configure, and maintain enterprise firewalls, including Palo Alto Networks and Fortinet FortiGate. Implement and maintain firewall security policies, NAT, routing, and access control rules. Monitor firewall logs, investigate security incidents, and troubleshoot connectivity issues. Perform firewall rule reviews, cleanup, and security policy optimization. Manage site-to-site and remote-access VPN configurations. Maintain firewall high availability (HA) and ensure business continuity. Perform firewall upgrades, patching, and configuration backups. 2. Load Balancer Management Manage and maintain enterprise load balancing solutions. Configure and administer F5 BIG-IP, Citrix ADC, or equivalent platforms. Configure Virtual Servers, pools, health monitors, SSL profiles, and traffic distribution policies. Manage SSL/TLS certificates and troubleshoot application delivery issues. Ensure high availability and optimal application performance. 3. Network Infrastructure Management Manage and troubleshoot enterprise network infrastructure, including routers, switches, and core network devices. Configure and maintain VLANs, routing protocols, and network segmentation. Manage routing protocols such as BGP, OSPF, and static routing. Monitor network availability, performance, and capacity. Troubleshoot complex network connectivity and performance issues. Support LAN, WAN, WLAN, and data center networking. 4. Network Security & Monitoring Implement network security best practices and hardening standards. Monitor network traffic and investigate suspicious activities. Work with SOC and cybersecurity teams to investigate and respond to security incidents. Manage network access control and segmentation. Support vulnerability assessments, penetration testing, and remediation activities. Ensure compliance with organizational security policies and regulatory requirements. 5. Operations & Administration Perform infrastructure maintenance, upgrades, and configuration changes. Manage incident, problem, and change requests according to ITIL processes. Maintain technical documentation, network diagrams, and configuration records. Coordinate with vendors and service providers for technical support. Participate in infrastructure projects, migrations, and disaster recovery activities. Required Technical Skills Firewall Technologies: Palo Alto Networks, Fortinet FortiGate. Load Balancers: F5 BIG-IP, Citrix ADC, or equivalent. Networking: Cisco, HPE Aruba, Juniper. Routing & Switching: BGP, OSPF, VLANs, STP, VRF. VPN Technologies: IPsec, SSL VPN, GlobalProtect. Network Security: IPS/IDS, NAT, ACLs, network segmentation. Monitoring: PRTG, SolarWinds, Zabbix, or similar. Security Management: Panorama, FortiManager, FortiAnalyzer. Protocols: TCP/IP, DNS, DHCP, HTTP/HTTPS, SSL/TLS. Qualifications Bachelor's degree in Computer Science, Information Technology, Network Engineering, or a related field. 4–7 years of experience in network engineering and network security. Hands-on experience managing enterprise firewalls and network infrastructure. Strong troubleshooting and problem-solving skills. Experience working in enterprise or data center environments. Preferred Certifications PCNSE – Palo Alto Networks Certified Network Security Engineer. FCP – Fortinet Certified Professional. CCNP Enterprise or Security. F5 Certified Administrator. CompTIA Security+. Key Competencies Strong technical and analytical skills. Ability to manage critical network security infrastructure. Incident management and troubleshooting. Vendor and stakeholder coordination. Documentation and change management. Ability to work under pressure and support 24/7 critical infrastructure. Show more Show less