Network Access Control - Technical Solns.Arch. Specialist Advisor

NTT DATA, Inc.; Dadri; On-site; INR 1,200,000 - 1,800,000; Full time

Job summary

NTT DATA Services in Noida, Uttar Pradesh invites an experienced Network Access Control Specialist Advisor to join our security team. You will design, implement and manage Cisco ISE-based NAC solutions, integrate with SIEM and other security tools, and ensure policy-driven access control across the network.

The role requires hands-on experience with authentication, authorization, and accounting, endpoint profiling, and BYOD posture assessments, with strong troubleshooting and documentation

Qualifications

• Experience in Authentication, Authorization, and Accounting in network access.
• Strong Cisco ISE administration and troubleshooting skills.
• Knowledge of NAC concepts and endpoint profiling.
• Experience integrating ISE with SIEM and log management.

Responsibilities

• Design and implement Cisco ISE solutions and integrations.
• Configure RADIUS/TACACS+ for secure network access.
• Develop endpoint profiling policies.
• Deploy and manage NAC with Cisco ISE.
• Define access control policies and posture assessments.
• Integrate ISE with security solutions and IT infrastructure.
• Troubleshoot ISE configurations and licensing.
• Maintain documentation and provide training.
• Plan upgrades and patches for ISE deployments.

Skills

Authentication

Authorization

Accounting

NAC (Network Access Control)

Endpoint profiling

Policy management

Troubleshooting

Documentation and training

Tools

Cisco ISE

RADIUS

TACACS+

DNAC

pxGrid

SIEM

Job description

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Network Access Control - Technical Solns.Arch. Specialist Advisor

Date: Oct 13, 2026

Location: noida, UP, IN

Company: NTT DATA Services

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,

We are currently seeking a Network Access Control - Technical Solns.Arch. Specialist Advisor to join our team in noida, Uttar Pradesh (IN-UP), India (IN).

In this role, Candidate is expected with an experience in core areas such as Authentication, Authorization, and Accounting, NAC (Network Access Control), and troubleshooting. The ideal candidate will have a strong background in the administration, upkeep, and upgrade of Cisco ISE solutions and deep understanding of network security concepts, Authentication, Authorization, and Accounting protocols, endpoint profiling, posture assessments, BYOD, Guest, pxGrid, DNAC integration with ISE and network access control (NAC) technologies.

Responsibilities

• Design and Implementation: Collaborate with infra and security teams to design, implement and customize Cisco ISE solutions, integrate third party solutions to bolster the security posture of the organization and to meet, security business and regulatory requirements.
• AAA Configuration: Review and configure Authentication, Authorization, and Accounting protocols such as RADIUS and TACACS+ on Cisco ISE for secure network access. Ensure to leverage industry best practices to reduce the attack surface areas.
• Endpoint Profiling: Understand, develop, and maintain endpoint profiling policies to classify and manage devices accessing the network based on their characteristics.
• Network Access Control (NAC): Deploy and manage NAC solutions using Cisco ISE to enforce security policies, monitor network access, and ensure compliance.
• Policy Management: Define and manage access control policies, posture assessments, and identity-based access controls within Cisco ISE.
• Integration and Collaboration: Collaborate with network, security, and IT teams to integrate Cisco ISE with other security solutions (SIEM and log management), identity providers, and network infrastructure components.
• Troubleshooting and Support: Diagnose and resolve complex issues related to Cisco ISE configurations, authentication failures, load balancer, licensing, and network access problems.
• Documentation and Training: Maintain comprehensive documentation of Cisco ISE configurations, policies, and procedures. Develop method and procedures in alignment with Change management best practices and provide training and knowledge transfer to varied team members.
• Upgrade and Patch Management: Plan and execute upgrades, patches, and maintenance activities for Cisco ISE deployments to ensure system stability and security. Escalate and troubleshoot along with Cisco TAC for identified bugs and potential work arounds.
• Integration and Collaboration: Collaborate with network engineers, security teams, and IT stakeholders to integrate Cisco ISE with other security solutions, applications, and network infrastructure components.

Preferences:

• Development experience with Java, J2EE, JSP, XPRESS, XML
• +8 years Experience with other Identity and Access Management technologies

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.

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