Firewall, Prisma - Network Security Senior Specialist Advisor

NTT DATA, Inc.; Dadri; On-site; INR 1,600,000 - 2,400,000; Full time

Job summary

A global technology leader is looking for a Network Security Senior Specialist Advisor in Noida, Uttar Pradesh. The successful candidate will have over 12 years of experience and expertise in Palo Alto and Prisma. Responsibilities include supporting network security environments, troubleshooting firewalls, and implementing security solutions. Strong communication skills and a solid understanding of networking protocols are essential. The role demands proactive problem solving in a dynamic customer environment, with opportunities to drive technical improvements.

Qualifications

• 12+ years of experience in Network Security administration.
• Hands-on experience with Palo Alto and Prisma.
• Strong troubleshooting skills specific to Palo Alto Firewalls.

Responsibilities

• Support customers' network security environment through requests and incidents.
• Implement Network Security solutions in a customer environment.
• Provide technical escalation for L2 support engineers.

Skills

Network Security administration experience

Palo Alto and Prisma expertise

Troubleshooting skills

Understanding of networking protocols

Customer communication skills

Tools

Palo Alto

Fortinet

Job description

Firewall, Prisma - Network Security Senior Specialist Advisor

Date: Apr 8, 2026

Location: Noida, UP, IN

Company: NTT DATA Services

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

Role Overview

The Network Security Specialist advisor will engage in daily maintenance and operations of the Firewall, Prisma. The Network Security Specialist Advisor will work primarily with Network Security products from different vendors like Palo Alto, FortiGate. The Network Security Specialist advisor would design, confirm, determine and/or troubleshoot traffic flows, security implementation and configurations etc. Network Security Services include daily maintenance and operations of multiple customers’ network security infrastructure. The successful candidate will be required to troubleshoot firewall and network traffic flows, as well as maintain accurate documentation of network and security products, support activities and processes. The candidate will also be required to work independently and remotely when troubleshooting and must also be able to solve problems with minimal client input and ability to elevate when solution is not readily apparent.

Role Responsibilities

• Work on Requests, Changes, Incidents and Problem records to support customers’ network security environment.
• Implement Network Security solutions and provide operational support in a customer environment.
• Provide technical escalation to L2 support engineers.
• Write custom queries on Palo Alto to fetch reporting data.
• Provide on‑call support for high severity incidents in a 24x7 environment.
• Ensure that Service Level Agreements and operational standards are met.
• Perform system maintenance, check‑ups and maintain current documentation.
• Provide resolution plans for device issues.
• Propose service, process, and technical improvements to management.
• Assist in Daily Steady State operations, request and change management, and weekly on‑call rotation support.
• Complete Weekly/Monthly Health Status checks across all support network security platforms.
• Work with multiple customers in a support environment to complete upgrades, patches and overall operational support.
• Assist in conducting rule set reviews to improve overall security footprint for our customers.
• Detect security issues, create customer tickets and manage problems until closure.

Requirements

• At least 12+ years of Network Security administration experience.
• Hands‑on experience with Palo Alto, Prisma, Fortinet.
• Strong troubleshooting skills around Palo Alto Firewalls.
• Solid understanding of the template/stack architecture.
• Extensive knowledge of networking protocols such as EIGRP, OSPF, BGP and switching technologies.
• Understanding of integration with authentication protocols such as LDAP, IWA, IWA‑direct, SSO, Active Directory.
• Excellent customer‑facing communication skills and knowledge of ITIL best practices; ITIL certification is a plus.
• Strong ethics, integrity, and flexibility to adapt to changing customer, account, and team needs.
• Excellent time‑management skills to manage operations duties and optimize the firewall team.

NTT DATA endeavors to make https://us.nttdata.com accessible to any and all users. If you would like to contact us regarding the accessibility of our website or need assistance completing the application process, please contact us at https://us.nttdata.com/en/contact-us . This contact information is for accommodation requests only and cannot be used to inquire about the status of applications. NTT DATA is an equal opportunity employer. Qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability or protected veteran status. For our EEO Policy Statement, please click here. If you'd like more information on your EEO rights under the law, please click here. For Pay Transparency information, please click here.