We are looking for a Senior DDI Engineer to design, manage, and secure enterprise DNS, DHCP, IPAM, and NTP services across internal networks, DMZ, internet-facing services, B2B/third-party connectivity, hybrid, and cloud environments. The role requires strong hands-on expertise, security awareness, and the ability to support DDI as a critical enterprise infrastructure and security service. Key Responsibilities: Design, deploy, and manage enterprise DNS, DHCP, IPAM, and NTP services. Support internal, external, recursive, and authoritative DNS environments. Manage DDI services for data centres, DMZ, internet-facing applications, B2B/third-party connectivity, hybrid, and cloud platforms. Implement DNS security controls such as split-horizon DNS, restricted zone transfers, secure delegation, logging, filtering, and anomaly detection. Prevent and support remediation of DNS-based threats, including tunnelling, exfiltration, amplification, and other DNS attacks. Design and operate enterprise...