TCS IS HIRING FOR Infoblox SME

Tata Consultancy Services; Chennai District; On-site; INR 900,000 - 1,500,000; Full time

Job summary

Tata Consultancy Services seeks an Infoblox DDI Administrator in Chennai to administer DNS, DHCP, and IPAM services. You will configure and manage Infoblox Grid components, DNS zones, and IPAM health across the network.

You will handle day-to-day changes, troubleshoot DNS and DHCP issues, monitor appliance health, and contribute to DR readiness. Experience with Infoblox WAPI and scripting is valued.

Qualifications

• Extensive experience managing DNS/DNSSEC concepts.
• Strong DHCP scope, lease, and failover configuration skills.
• Proficient in IPAM data accuracy and subnet utilization.
• Experience with Infoblox Grid management and DR readiness.
• Familiarity with ITIL incident, problem, change processes.

Responsibilities

• Administer and support Infoblox DDI services (DNS, DHCP, IPAM).
• Configure Infoblox Grid components and versions.
• Manage DNS zones, resource records, views, and delegation.
• Manage DHCP networks, scopes, options, and failover.
• Maintain IPAM data accuracy and inventory health.
• Perform day-to-day DNS/DHCP changes and cleanup.
• Troubleshoot resolution failures, lease issues, and conflicts.
• Monitor appliance health, service status, and replication.
• Plan changes, upgrades, patches, and recovery testing.
• Support high availability and DR readiness for DNS/DHCP.

Skills

DNS expertise

DHCP administration

IPAM management

Infoblox

Grid architecture

Incident management

Change management

Automation scripting

Tools

Infoblox WAPI/API

CSV import/export

Automation tooling

Job description

• Administer and support Infoblox DDI services covering DNS, DHCP, and IPAM operations.
• Configure and maintain Infoblox NIOS Grid, Grid Manager, Grid Members, Grid Master, and Grid Master Candidate components.
• Create, update, and manage DNS zones, DNS views, forward and reverse lookup zones, resource records, aliases, and delegation requirements.
• Manage DHCP networks, scopes, ranges, reservations, fixed addresses, options, leases, and DHCP failover configurations.
• Maintain IPAM data accuracy by tracking IP allocation, subnet utilization, IP reservations, address conflicts, and stale records.
• Perform day-to-day operational activities such as DNS record changes, DHCP scope updates, IP allocation requests, decommissioning, and data cleanup.
• Troubleshoot DNS resolution failures, DHCP lease issues, IP conflicts, zone transfer problems, Grid synchronization issues, and service availability incidents.
• Monitor Infoblox appliance health, service status, replication, capacity, DNS query load, DHCP utilization, and system alerts.
• Plan and execute standard changes, emergency changes, upgrades, patches, hotfixes, backup validation, and configuration recovery activities.
• Support high availability and disaster recovery readiness for DNS and DHCP services using Grid redundancy, DHCP failover, backups, and documented recovery procedures.
• Implement and support DNS security features such as DNSSEC, RPZ, DNS firewall policies, threat feeds, access controls, and query logging where applicable.
• Use Infoblox APIs/WAPI or automation scripts to support repeatable DDI operations, reporting, and provisioning activities.
• Prepare and maintain operational documentation, SOPs, runbooks, design records, IPAM standards, audit evidence, and change records.
• Participate in incident, problem, change, release, and capacity management processes aligned to ITIL practices.
• Collaborate with network, security, cloud, server, application, and project teams for new site deployment, network expansion, migration, and transformation activities.
• Provide L2/L3 support, technical guidance, root cause analysis, and permanent fix recommendations for recurring DDI issues.
• Strong DNS knowledge including A, AAAA, CNAME, MX, PTR, NS, SRV, TXT records, DNS views, recursion, forwarding, delegation, and zone transfer concepts.
• Strong DHCP knowledge including scopes, leases, exclusions, reservations, DHCP options, relay agents, failover, and troubleshooting.
• Experience in IPAM operations including subnet planning, IP lifecycle management, conflict resolution, utilization reporting, and data hygiene.
• Understanding of TCP/IP, routing, subnetting, VLANs, NAT, firewalls, load balancers, and enterprise network architecture.
• Knowledge of Infoblox appliance health monitoring, backups, restore processes, HA design, and Grid replication.
• Experience with DNS security capabilities such as DNSSEC, RPZ, DNS Firewall, threat intelligence feeds, query logging, and access control policies.
• Experience using CSV import/export, smart folders, extensible attributes, global search, approval workflows, and reporting functions.
• Basic scripting or automation knowledge using Python, PowerShell, Shell, Ansible, or Infoblox WAPI/API.
• Working knowledge of ITSM tools such as ServiceNow, ManageEngine, or equivalent platforms for incident, change, and request management.
• Exposure to cloud DNS/IPAM integration with AWS, Azure, or Google Cloud is preferred.