LBWAF Operations L2

Navi Mumbai - India

Monthly Salary: Not Disclosed

Posted on: 3 days ago

Vacancies: 1 Vacancy

Job Summary

Job Title: L2 Application Delivery Engineer (F5 NetScaler Azure WAF)

Experience Level: 36 Years

Location: RCP Ghansoli Navi Mumbai

Payroll : Quess Corp Ltd

1. Job Summary:

We are seeking an experienced L2 Network Security Engineer specializing in Application Delivery Controllers (ADC) and Web Application Firewalls (WAF). The ideal candidate will bridge the gap between Networking and Application teams managing traffic flow for business-critical applications on F5 LTM/ASM Citrix NetScaler and Azure Cloud. He will be responsible for VIP creation SSL offloading WAF policy tuning and troubleshooting complex HTTP/S traffic flows.

2. Key Responsibilities

A. Load Balancer Operations (LTM / ADC)

Traffic Management: Configure and manage Virtual IPs (VIPs) Server Pools Health Monitors and Load Balancing methods (Round Robin Least Connection).

Content Switching: Create and modify Layer 7 policies (URL redirection Header insertion) using F5 iRules or NetScaler AppExpert.

SSL/TLS Management: Manage the full lifecycle of SSL certificates (CSR generation Installation Renewal) and configure SSL Offloading/Bridging.

Maintenance: Perform firmware upgrades hotfix patching and backups for F5 BIG-IP and Citrix ADC appliances.

B. WAF & Security Operations (ASM / Azure)

Policy Management: Manage WAF policies for F5 ASM (Advanced WAF) and Azure Web App Firewall.

Threat Mitigation: Monitor and block OWASP Top 10 vulnerabilities (SQL Injection XSS CSRF) while minimizing false positives.

Tuning: Move WAF policies from Transparency/Learning mode to Blocking mode by analyzing violation logs.

DDoS Defense: Configure Rate Limiting and Geo-blocking to protect public-facing applications.

C. Cloud Load Balancing (Azure)

Azure Networking: Configure Azure Application Gateway Azure Front Door and Azure Load Balancer for cloud-native apps.

Hybrid Routing: troubleshoot traffic flow between On-Premise ADCs and Azure resources via ExpressRoute/VPN.

D. Infrastructure Support

GSLB: Manage Global Server Load Balancing (F5 DNS/GTM) for Disaster Recovery (DR) failover between datacenters.

Troubleshooting: Use tools like Tcpdump Wireshark and F5/NetScaler CLI to analyze packet drops and latency.

3. Technical Skills (Required)

Core ADC Platforms: Hands-on expertise with F5 BIG-IP (LTM/DNS) and Citrix NetScaler (ADC). (Radware knowledge is a plus).

WAF Expertise: Strong understanding of F5 ASM or Azure WAF Policy tuning signatures and violation analysis.

Cloud Networking: Experience with Azure VNet NSGs and Application Gateway (v2).

Protocols: Deep knowledge of HTTP/1.1 vs HTTP/2 SSL Handshake DNS and TCP/IP.

Scripting: Familiarity with Python or Bash for basic automation; reading F5 iRules is mandatory.

Certificates: Knowledge of PKI CA SAN certificates and Chain of Trust.

4. Soft Skills & Competencies

Attention to Detail: Critical when applying WAF policies to avoid blocking legitimate business traffic.

Crisis Management: Ability to stay calm during high-pressure application outages.

Collaboration: Working closely with App Developers to understand application behavior for custom health checks.

5. Qualifications

Education: Bachelors degree in IT or relevant Diploma.

Experience: 45 years in Network Security or Application Delivery.

Certifications (Preferred):

o F5-CTS (Certified Technology Specialist)

o Citrix CCP-N (Certified Professional - Networking)

o Azure Network Engineer Associate (AZ-700)

Required Experience:

Manager

Job Title: L2 Application Delivery Engineer (F5 NetScaler Azure WAF)Experience Level: 36 Years Location: RCP Ghansoli Navi MumbaiPayroll : Quess Corp Ltd1. Job Summary:We are seeking an experienced L2 Network Security Engineer specializing in Application Delivery Controllers (ADC) and Web Applicatio...