Firewall Engineer

Wissen Digital; Karnataka; Presencial; INR 1.200.000 - 1.800.000; Jornada completa

Descripción de la vacante

Wissen Digital is seeking an L2 Network Firewall & WAF Engineer to monitor, troubleshoot and maintain enterprise firewall and Web Application Firewall infrastructure.

You will manage firewall rules, perform log analysis, and ensure HA and incident resolution within SLA. Required experience includes hands-on with Palo Alto, Fortinet, Check Point, and WAF tools such as F5 and Imperva, plus SIEM competencies.

Formación

• 25 years of experience in network/security operations.
• Experience in L2 support environment with incident handling and troubleshooting.
• Exposure to production environments and change management.

Responsabilidades

• Monitor and manage firewalls and WAF policies.
• Troubleshoot connectivity issues related to firewall configurations.
• Perform log analysis to detect anomalies and incidents.
• Ensure high availability, failover, and redundancy health.
• Handle L2 tickets and escalate to L3 when needed.
• Monitor SIEM alerts and respond to threats.

Conocimientos

TCP/IP

DNS

HTTP/HTTPS

SSL/TLS

Network security concepts

NAT

VPN

IPS/IDS

Linux/Unix basics

Educación

CCNA / CCNP Security

Palo Alto PCNSE / Fortinet NSE

CEH / CompTIA Security+

Herramientas

Firewalls: Palo Alto / Fortinet / Cisco ASA / Check Point

WAF: F5 ASM/AWAF / Imperva / Cloudflare / AWS WAF

SIEM tools: Splunk / QRadar

Wireshark / tcpdump

ServiceNow / Jira

Descripción del empleo

L2 Network Firewall & WAF EngineerRole Overview

The L2 Network Firewall & WAF Engineeris responsible formonitoring, troubleshooting, and maintaining enterprisefirewalland Web Application Firewall (WAF) infrastructure. This role focuses on incident resolution, rule management, and ensuring network security availability and performance.

Key ResponsibilitiesFirewall Management

• Monitor and manage firewalls (e.g., Palo Alto, Fortinet, Cisco ASA, Check Point)
• Implement,modify, and reviewfirewallrules as per security policies
• Troubleshoot network connectivity issues related tofirewallconfigurations
• Perform log analysis to detect anomalies and security incidents
• Ensure high availability (HA), failover, and redundancy health

WAF (Web Application Firewall) Operations

• Manage WAF tools (e.g., F5 ASM/AWAF, Imperva, Akamai, AWS WAF)
• Analyzeweb traffic and tune WAF policies to reduce false positives/negatives
• Investigate and mitigate application-layer attacks (SQL injection, XSS, etc.)
• Apply security signatures and updates

Incident & Ticket Management

• Handle L2 support tickets and escalations from L1 team
• Perform root cause analysis (RCA) for incidents
• Providetimelyresolution within SLA
• Collaborate with L3 teams for complex issues

Security Monitoring

• Monitor security alerts from SIEM tools (Splunk,QRadar, etc.)
• Identifysuspicious activities and respond to threats
• Assistin vulnerability remediation efforts

Change & Configuration Management

• Execute network/security changes as per change management process
• Maintain proper documentation offirewall& WAF rules
• Ensure compliance with security standards and audit requirements

Required SkillsTechnical Skills

• Strong knowledge of:
  • TCP/IP, DNS, HTTP/HTTPS, SSL/TLS
  • Network security concepts (NAT, VPN, IPS/IDS)
• Hands-on experience with:
  • Firewalls: Palo Alto / Fortinet / Cisco ASA / Check Point
  • WAF: F5 ASM/AWAF / Imperva / Cloudflare / AWS WAF
• Basic understanding of:
  • Load balancers (F5, NGINX)
  • SIEM tools and log analysis
• Familiarity with Linux/Unix basics

Tools & Technologies

• Firewallmanagement consoles
• Packet capture tools (Wireshark,tcpdump)
• Ticketing tools (ServiceNow, Jira)

Experience Required

• 25yearsexperiencein network/security operations
• Experience in L2 support environment (incident handling & troubleshooting)
• Exposure to production environments and change management

Preferred Certifications

• CCNA / CCNP Security
• Palo Alto PCNSE / Fortinet NSE
• CEH / CompTIA Security+

Key KPIs

• SLA adherence for incident resolution
• Change success rate
• Reduction in false positives (WAF tuning)
• Security incident response time