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L3 - Web Application Firewall (WAF) Specialist

7 - 12 years

17 - 22 Lacs

Posted:19 hours ago| Platform: Naukri logo

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Job Type

Full Time

Job Description


Role Overview

L3 Web Application Firewall (WAF) Specialist

You will act as the subject matter expert (SME) for WAF in client-facing and internal security engagements, guiding application protection strategies, overseeing advanced threat prevention, and mentoring L1/L2 engineers.

Key Responsibilities

  • Lead WAF Design & Deployment

    : Architect, configure, and deploy enterprise-grade WAF solutions across multi-tenant, multi-region environments using technologies like F5 ASM, Citrix, or Imperva.
  • Incident Management & Escalation (L3 Level)

    : Handle high-priority WAF incidents, perform root cause analysis (RCA), implement custom mitigations, and ensure resolution within defined SLAs.
  • Policy Tuning & Custom Rules

    : Develop and optimize custom WAF rules (iRules, regex, JSON filters) based on traffic analysis, threat signatures, and business use cases to minimize false positives and ensure maximum protection.
  • Threat Intelligence Integration

    : Analyze logs and correlate WAF events with threat intelligence feeds and SIEM tools to proactively detect and respond to Layer 7 attacks (e.g., SQLi, XSS, RFI, LFI, bot traffic).
  • Pre-Production Application Review

    : Collaborate with DevSecOps and App teams to assess applications prior to production rollout, ensuring adequate WAF protection is in place through rigorous policy simulations and tuning.
  • Patch & Upgrade Planning

    : Plan and execute firmware upgrades, policy migrations, and security patching aligned with vendor lifecycle and enterprise security policies.
  • Compliance & Audit Support

    : Align WAF posture with OWASP Top 10, PCI-DSS, GDPR, and internal compliance frameworks; prepare documentation and reports for audits and security assessments.
  • Mentoring & Process Improvement

    : Mentor L1/L2 WAF engineers, define SOPs, standardize response playbooks, and drive automation initiatives where possible.

Required Skills & Experience

  • Minimum

    7 years of hands-on experience

    managing

    Web Application Firewalls

    in enterprise or service provider environments.
  • Deep expertise in WAF platforms such as

    F5 BIG-IP ASM

    ,

    Citrix AppFirewall

    ,

    Imperva

    , or Fortinet WAF.
  • Strong knowledge of

    Layer 7 protocols

    ,

    HTTP/HTTPS traffic analysis

    ,

    TLS/SSL decryption

    , and

    web server architectures

    .
  • Familiarity with protocols and technologies such as BGP, OSPF, VXLAN, or MP-BGP EVPN is a plus.
  • Advanced understanding of

    application-layer threats

    ,

    bot mitigation

    ,

    credential stuffing

    ,

    zero-day exploit patterns

    , and

    custom rule writing

    .
  • Proven ability to manage

    complex security incidents independently

    and interface with customers, stakeholders, and internal security teams.
  • Experience with

    configuration backup/recovery

    ,

    version control

    , and

    multi-tenant policy management

    .
  • Excellent documentation, troubleshooting, and stakeholder communication skills.

Certifications (Mandatory)

  • F5-301/F5-303/Other Industry leading OEM Professional level Certification

Nice to Have

  • Exposure to

    cloud-native WAFs

    (e.g., AWS WAF, Azure WAF, Cloudflare).
  • Experience in

    ACI (Application Centric Infrastructure)

    and

    Software Defined Networking (SDN)

    for securing microservices or hybrid apps.
  • Scripting or automation knowledge (Python, Bash, Ansible) to streamline monitoring and deployment tasks.

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