Senior Network Security Specialist - Load Balancer & DDI Management

NTT DATA Global Delivery Services Ltd; Bengaluru; Hybrid; INR 1,800,000 - 2,600,000; Full time

Job summary

NTT DATA Global Delivery Services Ltd in Bengaluru is seeking a LB Network Security Senior Specialist to manage DDI (DNS, DHCP, IPAM) and load balancers across on-premises, hybrid, and multi-cloud environments. This role emphasizes automation, scripting, and reliable IP address management using IPControl and related tools.

You will configure and maintain DNS/DHCP/IPAM services, support multi-cloud environments, and troubleshoot production incidents while ensuring optimal network performance and

Qualifications

• Experience in DNS/DHCP/IPAM administration across on-premises and cloud.
• Automation and scripting to streamline network provisioning.
• Knowledge of multi-cloud networking and load balancing.

Responsibilities

• Administering enterprise DNS, DHCP, and IPAM services for on-premises and cloud environments.
• Managing DDI platform IPControl and IP address lifecycle.
• Configuring load balancers such as F5 BIG-IP, Citrix ADC, and HAProxy.
• Troubleshooting DNS/DHCP incidents and ensuring service reliability.
• Supporting multi-cloud deployments and automation initiatives.

Skills

DNS/DHCP/IPAM

Network automation

Cloud networking

Scripting (Python/PowerShell)

Tools

IPControl

DNS/DHCP platforms

Job description

LB Network Security Senior Specialist

Req ID: 388151

NTT DATA strives to hire exceptional, innovative and passionate individuals who want to grow with us.

We are currently seeking a LB Network Security Senior Specialist to join our team in Bengaluru, Karnātaka (IN-KA), India (IN).

Key Responsibilities

• DDI Responsible for the administration, automation, and support of the enterprise DDI (DNS, DHCP, and IP Address Management) platform using CygnaLabs IPControl, ensuring reliable IP address allocation, DNS resolution, DHCP services, network automation, and compliance across on-premises, hybrid, and cloud environments
• Managing and maintaining the IPControl infrastructure
• Administering enterprise DNS, DHCP, and IPAM services
• Creating and managing IP address blocks, subnets, DHCP scopes, reservations, and DNS zones
• Monitoring DHCP pool utilization and IP address consumption
• Planning and allocating IPv4 and IPv6 address space
• Maintaining accurate IP inventory and lifecycle management
• Performing subnet provisioning, reclamation, and capacity forecasting
• Supporting multi-cloud environments
• Configuring and troubleshooting DNS records, zones, and policies
• Managing DHCP failover and lease monitoring
• Supporting Microsoft DNS/DHCP, ISC/Kea, BIND, and cloud DNS services
• Resolving production incidents affecting DNS and DHCP operations
• Leveraging automation tools, APIs, and scripting to streamline network provisioning, improve operational efficiency, and ensure service reliability

Load Balancer Management

• Configure and manage load balancers such as F5 BIG-IP (LTM/GTM), Citrix ADC (NetScaler), HAProxy / NGINX (if applicable)
• Implement L4/L7 load balancing
• Configure Virtual servers, Pools and health monitors, SSL offloading and certificates, optimize traffic distribution and application performance
• Troubleshoot load balancing and application connectivity issues

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. Whenever possible, we hire locally to NTT DATA offices or client sites. This ensures we can provide timely and effective support tailored to each client’s needs.

While many positions offer remote or hybrid work options, these arrangements are subject to change based on client requirements. For employees near an NTT DATA office or client site, in-office attendance may be required for meetings or events, depending on business needs. At NTT DATA, we are committed to staying flexible and meeting the evolving needs of both our clients and employees.

Equal Opportunity and EEO Policy

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.

Experience Level

Senior Level