Lead Administrator (Support &Operations)
India
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Job Description
Lead Administrator (Support &Operations)
Chennai, Tamil Nadu

Job Summary

Job Summary:

We are looking for an L2 Network Security Engineer with strong hands-on experience in Firewall technologies (Meraki, Palo Alto, Fortigate – any 2 mandatory) and operational exposure to Zscaler (ZIA/ZPA), Microsoft Defender for Office 365 (MDO), and WAF (Cloudflare).

The role focuses on BAU operations, ticket handling, troubleshooting, and change implementation in a 24×7 rotational shift environment.

Key Responsibilities

Key Responsibilities

  • Handle INC / SR / CR tickets within SLA
  • Execute firewall configuration changes (rules, NAT, VPN)
  • Troubleshoot network, Zscaler, email security, and WAF issues
  • Perform initial RCA and log analysis
  • Support Zscaler, MDO, and WAF operations
  • Escalate complex issues to L3/OEM
  • Maintain operational hygiene and documentation
  • Provide customer communication and updates

Skill Requirements

Required Skills:

🔹 Firewall (Any 2 Mandatory: Meraki / Palo Alto / Fortigate)

Hands-on experience in:

  • Security policies, NAT (SNAT/DNAT), ACLs
  • Zone-based firewall configuration

VPN knowledge:

  • IPSec / SSL VPN configuration & troubleshooting

 

Troubleshooting:

  • Connectivity issues (policy/NAT/routing)

Log analysis:

  • Traffic, threat, system logs

Exposure to:

  • Meraki Dashboard / Panorama / Forti Manager

Other Requirements

Zscaler (ZIA / ZPA)

ZIA:

  • URL filtering, web access policies
  • Traffic forwarding (PAC, GRE/IPsec)

ZPA:

  • Basic application access configuration
  • Client Connector troubleshooting
  • Basic understanding of SSO (Azure AD / SAML)

Troubleshooting:

  • User internet access and application access issues

🔹 MDO 365 (Email Security)

  • Anti-spam and anti-malware policies
  • Safe Links / Safe Attachments
  • Email trace and mail flow troubleshooting
  • Quarantine management
  • Handling phishing/spam issues
  • Basic awareness of SPF, DKIM, DMARC

🔹 WAF – Cloudflare

  • OWASP rule handling
  • IP blocking / Geo-blocking
  • Rate limiting
  • Basic DDoS handling
  • Troubleshooting false positives

 

Good to Have:

  • Basic networking (Routing & Switching)
  • SIEM exposure (Splunk / QRadar)
  • ITIL knowledge
  • Basic scripting / automation

Certifications

  • Palo Alto PCNSA
  • Fortinet NSE 1–4
  • Meraki (CMNA)
  • Microsoft SC-900 / MS-500
  • Zscaler ZCCA

✅ Soft Skills

  • Good communication skills (mandatory)
  • Customer-facing handling
  • Willingness for 24×7 rotational shift
  • Strong troubleshooting approach
  • Team collaboration
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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 227,000 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 March 2026 totaled $14.7 billion.