Network Security Specialist

Req ID: 371221 

NTT DATA strives to hire exceptional, innovative and passionate individuals who want to grow with us. If you want to be part of an inclusive, adaptable, and forward-thinking organization, apply now.

We are currently seeking a Palo Alto firewalls - Network Security Senior Specialist to join our team in Noida, Uttar Pradesh (IN-UP), India (IN).

L3 (Grade 9) – Network Security senior Specialist  
Key Responsibilities
•    Provide day-to-day operational support for Palo Alto firewalls and Panorama. 
•    Handle incident, request, and change management activities. 
•    Monitor firewall health, logs, and alerts; triage and resolve issues within SLA. 
•    Perform configuration changes (NAT, security rules, objects) under standard procedures. 
•    Support upgrades, patching, and routine maintenance activities. 
•    Assist in rulebase reviews and cleanup activities. 
•    Escalate complex issues to L4/vendor with proper analysis and logs. 
•    Maintain documentation, runbooks, and knowledge base updates. 
•    Participate in on-call rotation and support multiple customer environments. 
•    Willing to work in 24X7 environment

Required Skills & Experience
•    3–6 years of network/security experience 
•    Hands-on experience with Palo Alto firewalls and Panorama (operations level) 
•    Strong understanding of: 
o    TCP/IP, routing, NAT, VPN 
o    Security policies and logging 
•    Basic knowledge of: 
o    Authentication (LDAP/AD/SSO) 
o    Web/proxy concepts (WCCP, PAC) 
•    Experience with ticketing tools and ITIL processes 
•    Good troubleshooting and analytical skills 
•    Strong communication skills 

Preferred
•    Exposure to Azure/AWS 
•    Basic scripting/automation (optional) 
•    PCNSA certification 

About NTT DATA

NTT DATA is a $30 billion business and technology services leader, serving 75% of the Fortune Global 100. We are committed to accelerating client success and positively impacting society through responsible innovation. We are one of the world's leading AI and digital infrastructure providers, with unmatched capabilities in enterprise-scale AI, cloud, security, connectivity, data centers and application services. our consulting and Industry solutions help organizations and society move confidently and sustainably into the digital future. As a Global Top Employer, we have experts in more than 50 countries. We also offer clients access to a robust ecosystem of innovation centers as well as established and start-up partners. NTT DATA is a part of NTT Group, which invests over $3 billion each year in R&D.