Senior Administrator - Network LAN/WAN
India
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Job Description
Senior Administrator - Network LAN/WAN
Gurugram, Haryana

Job Summary

An F5 Web Application Firewall (WAF) L2/3 Engineer designs, implements, and supports F5 Advanced WAF/ASM environments. This role focuses on mitigating Layer 7 attacks, managing security policies, troubleshooting false positives, and providing escalation support to secure enterprise web applications.Typical Job Description (JD) requirements include:Key ResponsibilitiesPolicy Management: Deploy, configure, and fine-tune F5 WAF/ASM policies to block attacks like SQL injection, XSS, and DDoS. Policy Management & Tuning Deploy, configure, and manage Web Application Firewall (WAF) security policies.Analyze traffic, identify false positives, and fine-tune WAF policies to prevent legitimate traffic from being blocked.mplement automated security configurations and iRules to handle specific traffic routing or security logic.Incident Management: Provide Level 2 and Level 3 support to troubleshoot traffic blocks and resolve false positives. Incident Management & Troubleshooting Provide Level 2 and Level 3 operational support for WAF-related incidents.Monitor security events, conduct packet captures, and analyze logs using Wireshark or tcpdump to isolate and resolve threats.Compliance & Governance Perform root cause analysis (RCA) and generate detailed incident reports.Ensure WAF configurations align with regulatory compliance standards (e.g., PCI-DSS, banking/BFSI regulations).Maintain technical runbooks, Standard Operating Procedures (SOPs), and knowledge base articles.Escalate complex, high-severity issues directly to the vendor's F5 Technical Assistance Center (TAC).Traffic & Load Balancing: Work alongside LTM (Local Traffic Manager) and SSLO (SSL Orchestration) to inspect secure traffic efficiently.Collaboration: Coordinate with application teams to understand web behaviors and ensure security measures don't disrupt business functions.Monitoring & Tuning: Analyze security logs, conduct vulnerability scans, and maintain optimal threat-mitigation performance.Security Concepts: Deep understanding of OWASP Top 10 vulnerabilities, web protocols ( HTTP/HTTPS), and SSL/TLS architectures.Required Qualifications & SkillsExperience: 3 to 6 years in network security, specifically managing F5 BIG-IP WAF/ASM technologies.Technical Skills Required Core F5 Expertise: Deep knowledge of F5 BIG-IP platforms, specifically ASM (Application Security Manager) and Advanced WAFWeb Security: Solid understanding of OWASP Top 10 vulnerabilities (e.g., Cross-Site Scripting, SQL Injection)Protocols & Services: Strong grasp of TCP/IP, HTTP/HTTPS, SSL/TLS, and DNS.Add-on Skills: Experience with SSL Orchestrator (SSLO), Load Balancing (LTM), and integrations with SIEM/SOAR platforms is highly desirable.Networking Knowledge: Strong understanding of OSI layers, HTTP/HTTPS, TCP/IP, DNS, and TLS/SSL.Certifications: F5 Certified Technology Specialist (FTS) or equivalent professional certs are highly preferred.Soft Skills: Excellent troubleshooting mindset, analytical capabilities, and stakeholder communication. 

Key Responsibilities

An F5 Web Application Firewall (WAF) L2/3 Engineer designs, implements, and supports F5 Advanced WAF/ASM environments. This role focuses on mitigating Layer 7 attacks, managing security policies, troubleshooting false positives, and providing escalation support to secure enterprise web applications.Typical Job Description (JD) requirements include:Key ResponsibilitiesPolicy Management: Deploy, configure, and fine-tune F5 WAF/ASM policies to block attacks like SQL injection, XSS, and DDoS. Policy Management & Tuning Deploy, configure, and manage Web Application Firewall (WAF) security policies.Analyze traffic, identify false positives, and fine-tune WAF policies to prevent legitimate traffic from being blocked.mplement automated security configurations and iRules to handle specific traffic routing or security logic.Incident Management: Provide Level 2 and Level 3 support to troubleshoot traffic blocks and resolve false positives. Incident Management & Troubleshooting Provide Level 2 and Level 3 operational support for WAF-related incidents.Monitor security events, conduct packet captures, and analyze logs using Wireshark or tcpdump to isolate and resolve threats.Compliance & Governance Perform root cause analysis (RCA) and generate detailed incident reports.Ensure WAF configurations align with regulatory compliance standards (e.g., PCI-DSS, banking/BFSI regulations).Maintain technical runbooks, Standard Operating Procedures (SOPs), and knowledge base articles.Escalate complex, high-severity issues directly to the vendor's F5 Technical Assistance Center (TAC).Traffic & Load Balancing: Work alongside LTM (Local Traffic Manager) and SSLO (SSL Orchestration) to inspect secure traffic efficiently.Collaboration: Coordinate with application teams to understand web behaviors and ensure security measures don't disrupt business functions.Monitoring & Tuning: Analyze security logs, conduct vulnerability scans, and maintain optimal threat-mitigation performance.Security Concepts: Deep understanding of OWASP Top 10 vulnerabilities, web protocols ( HTTP/HTTPS), and SSL/TLS architectures.Required Qualifications & SkillsExperience: 3 to 6 years in network security, specifically managing F5 BIG-IP WAF/ASM technologies.Technical Skills Required Core F5 Expertise: Deep knowledge of F5 BIG-IP platforms, specifically ASM (Application Security Manager) and Advanced WAFWeb Security: Solid understanding of OWASP Top 10 vulnerabilities (e.g., Cross-Site Scripting, SQL Injection)Protocols & Services: Strong grasp of TCP/IP, HTTP/HTTPS, SSL/TLS, and DNS.Add-on Skills: Experience with SSL Orchestrator (SSLO), Load Balancing (LTM), and integrations with SIEM/SOAR platforms is highly desirable.Networking Knowledge: Strong understanding of OSI layers, HTTP/HTTPS, TCP/IP, DNS, and TLS/SSL.Certifications: F5 Certified Technology Specialist (FTS) or equivalent professional certs are highly preferred.Soft Skills: Excellent troubleshooting mindset, analytical capabilities, and stakeholder communication. 

Skill Requirements

An F5 Web Application Firewall (WAF) L2/3 Engineer designs, implements, and supports F5 Advanced WAF/ASM environments. This role focuses on mitigating Layer 7 attacks, managing security policies, troubleshooting false positives, and providing escalation support to secure enterprise web applications.Typical Job Description (JD) requirements include:Key ResponsibilitiesPolicy Management: Deploy, configure, and fine-tune F5 WAF/ASM policies to block attacks like SQL injection, XSS, and DDoS. Policy Management & Tuning Deploy, configure, and manage Web Application Firewall (WAF) security policies.Analyze traffic, identify false positives, and fine-tune WAF policies to prevent legitimate traffic from being blocked.mplement automated security configurations and iRules to handle specific traffic routing or security logic.Incident Management: Provide Level 2 and Level 3 support to troubleshoot traffic blocks and resolve false positives. Incident Management & Troubleshooting Provide Level 2 and Level 3 operational support for WAF-related incidents.Monitor security events, conduct packet captures, and analyze logs using Wireshark or tcpdump to isolate and resolve threats.Compliance & Governance Perform root cause analysis (RCA) and generate detailed incident reports.Ensure WAF configurations align with regulatory compliance standards (e.g., PCI-DSS, banking/BFSI regulations).Maintain technical runbooks, Standard Operating Procedures (SOPs), and knowledge base articles.Escalate complex, high-severity issues directly to the vendor's F5 Technical Assistance Center (TAC).Traffic & Load Balancing: Work alongside LTM (Local Traffic Manager) and SSLO (SSL Orchestration) to inspect secure traffic efficiently.Collaboration: Coordinate with application teams to understand web behaviors and ensure security measures don't disrupt business functions.Monitoring & Tuning: Analyze security logs, conduct vulnerability scans, and maintain optimal threat-mitigation performance.Security Concepts: Deep understanding of OWASP Top 10 vulnerabilities, web protocols ( HTTP/HTTPS), and SSL/TLS architectures.Required Qualifications & SkillsExperience: 3 to 6 years in network security, specifically managing F5 BIG-IP WAF/ASM technologies.Technical Skills Required Core F5 Expertise: Deep knowledge of F5 BIG-IP platforms, specifically ASM (Application Security Manager) and Advanced WAFWeb Security: Solid understanding of OWASP Top 10 vulnerabilities (e.g., Cross-Site Scripting, SQL Injection)Protocols & Services: Strong grasp of TCP/IP, HTTP/HTTPS, SSL/TLS, and DNS.Add-on Skills: Experience with SSL Orchestrator (SSLO), Load Balancing (LTM), and integrations with SIEM/SOAR platforms is highly desirable.Networking Knowledge: Strong understanding of OSI layers, HTTP/HTTPS, TCP/IP, DNS, and TLS/SSL.Certifications: F5 Certified Technology Specialist (FTS) or equivalent professional certs are highly preferred.Soft Skills: Excellent troubleshooting mindset, analytical capabilities, and stakeholder communication. 

Other Requirements

An F5 Web Application Firewall (WAF) L2/3 Engineer designs, implements, and supports F5 Advanced WAF/ASM environments. This role focuses on mitigating Layer 7 attacks, managing security policies, troubleshooting false positives, and providing escalation support to secure enterprise web applications.Typical Job Description (JD) requirements include:Key ResponsibilitiesPolicy Management: Deploy, configure, and fine-tune F5 WAF/ASM policies to block attacks like SQL injection, XSS, and DDoS. Policy Management & Tuning Deploy, configure, and manage Web Application Firewall (WAF) security policies.Analyze traffic, identify false positives, and fine-tune WAF policies to prevent legitimate traffic from being blocked.mplement automated security configurations and iRules to handle specific traffic routing or security logic.Incident Management: Provide Level 2 and Level 3 support to troubleshoot traffic blocks and resolve false positives. Incident Management & Troubleshooting Provide Level 2 and Level 3 operational support for WAF-related incidents.Monitor security events, conduct packet captures, and analyze logs using Wireshark or tcpdump to isolate and resolve threats.Compliance & Governance Perform root cause analysis (RCA) and generate detailed incident reports.Ensure WAF configurations align with regulatory compliance standards (e.g., PCI-DSS, banking/BFSI regulations).Maintain technical runbooks, Standard Operating Procedures (SOPs), and knowledge base articles.Escalate complex, high-severity issues directly to the vendor's F5 Technical Assistance Center (TAC).Traffic & Load Balancing: Work alongside LTM (Local Traffic Manager) and SSLO (SSL Orchestration) to inspect secure traffic efficiently.Collaboration: Coordinate with application teams to understand web behaviors and ensure security measures don't disrupt business functions.Monitoring & Tuning: Analyze security logs, conduct vulnerability scans, and maintain optimal threat-mitigation performance.Security Concepts: Deep understanding of OWASP Top 10 vulnerabilities, web protocols ( HTTP/HTTPS), and SSL/TLS architectures.Required Qualifications & SkillsExperience: 3 to 6 years in network security, specifically managing F5 BIG-IP WAF/ASM technologies.Technical Skills Required Core F5 Expertise: Deep knowledge of F5 BIG-IP platforms, specifically ASM (Application Security Manager) and Advanced WAFWeb Security: Solid understanding of OWASP Top 10 vulnerabilities (e.g., Cross-Site Scripting, SQL Injection)Protocols & Services: Strong grasp of TCP/IP, HTTP/HTTPS, SSL/TLS, and DNS.Add-on Skills: Experience with SSL Orchestrator (SSLO), Load Balancing (LTM), and integrations with SIEM/SOAR platforms is highly desirable.Networking Knowledge: Strong understanding of OSI layers, HTTP/HTTPS, TCP/IP, DNS, and TLS/SSL.Certifications: F5 Certified Technology Specialist (FTS) or equivalent professional certs are highly preferred.Soft Skills: Excellent troubleshooting mindset, analytical capabilities, and stakeholder communication. 
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Information at a Glance

Why HCLTech?

At HCLTech, you'll supercharge your potential. You'll find your career. And you'll find your spark. All at a place that knows that helping its customers stay on top starts by putting its people first.

HCLTech is a global technology company, home to more than 226,300 people across 60 countries, delivering industry-leading capabilities centered around digital, engineering, cloud and AI, powered by a broad portfolio of technology services and products. We work with clients across all major verticals, providing industry solutions for Financial Services, Manufacturing, Life Sciences and Healthcare, Technology and Services, Telecom and Media, Retail and CPG, and Public Services. Consolidated revenues as of 12 months ending December 2025 totaled $14.5 billion.
23 Benefits At HCLTech, we believe in empowering our employees with comprehensive benefits that support their professional growth and enhance their well-being. When you sign up for a career with us, you gain access to: https://rmkcdn.successfactors.com/147eb21f/a701dca9-f32d-4fc9-9447-6.svg Industry-benchmarked compensation https://rmkcdn.successfactors.com/147eb21f/b0c54381-ddcc-4a33-9b35-9.svg Best-in-class healthcare benefits https://rmkcdn.successfactors.com/147eb21f/b73027be-7aae-4d36-a090-4.svg Personal time off https://rmkcdn.successfactors.com/147eb21f/d5b4fdfd-2e99-4e26-9878-9.svg Maternity and paternity benefits https://rmkcdn.successfactors.com/147eb21f/3d42b0fc-4652-435a-9ece-c.svg Access to skills / higher education programs/resources https://rmkcdn.successfactors.com/147eb21f/aeddeaf2-9e25-4584-ad11-d.svg Discounts on products and services via Benefit Box https://rmkcdn.successfactors.com/147eb21f/a9609a3b-2700-4b3c-9d90-a.svg Participate in CSR programs and live life with a purpose https://rmkcdn.successfactors.com/147eb21f/c6e33851-710f-4634-bd69-f.svg Opportunities to grow and advance your career Note: The benefits listed above vary depending on the nature of your employment and the country where you work. Some benefits may be available in some countries but not in all.