NTT DATA is hiring a Network Security Engineer in Hyderabad to design, implement, maintain and monitor network security infrastructure. You will deploy and manage firewalls, IDS/IPS, VPNs, web proxies and network access control, monitor traffic and alerts in SIEM tools, run vulnerability assessments and coordinate fixes, and maintain security policies and procedures. The role also covers investigating and responding to security incidents, configuring secure network architectures on-premises and in the cloud, reviewing firewall rules and managing segmentation and access control, while working with other IT teams. Requirements: around 3+ years of network security experience (the posting lists 3–8 years), hands-on firewall and VPN skills, and knowledge of SIEM and security frameworks.